Procedia of Engineering and Life Science https://pels.umsida.ac.id/index.php/PELS <p>Procedia of Engineering and Life Science is an output from the National Science and Technology Seminar held by the engineering faculty of Muhammadiyah University of Sidoarjo</p> <p>&nbsp;</p> Universitas Muhammadiyah Sidoarjo en-US Procedia of Engineering and Life Science 2807-2243 Implementation of Heaven Theme Study in the Spirit of Worship https://pels.umsida.ac.id/index.php/PELS/article/view/1603 <p>Worship is a central aspect of religious life practiced by believers with the aim of drawing closer to the Creator and adhering to the teachings of their faith. In the journey of worship, the theme of paradise plays a significant role as a source of motivation and spiritual guidance. Paradise, viewed as the ultimate destination filled with eternal happiness, pleasure, and peace, holds importance across various religious beliefs. Implementing studies on the theme of paradise in the spirit of worship is relevant for deepening understanding, motivating, and enhancing the quality of believers' worship. This research employs a qualitative approach, combining literature analysis and field studies. The analysis reveals that understanding the concept of paradise significantly influences believers' worship spirit. The theme of paradise serves not only as a personal motivator but also reinforces religious values and shapes moral behavior and ethics within religious communities. Challenges in implementing studies on the theme of paradise include varying individual understandings and interpretations of religious texts.D iscussion highlights the need for harmonizing understanding of the concept of paradise, optimizing the implementation of paradise-themed studies in worship through religious education and community activities, strengthening religious values through religious education programs, and addressing challenges through open dialogue and contextual approaches. This research contributes to a deeper understanding of implementing studies on the theme of paradise in the spirit of worship and proposes steps for developing more meaningful and directed worship practices within the religious context.</p> khoiri khoiri Copyright (c) 2024 khoiri khoiri https://creativecommons.org/licenses/by/4.0 2023-12-30 2023-12-30 7 10.21070/pels.v7i0.1603 Analysis of Process Failures in Plastic Product Manufacturing Using Blow Molding Machines https://pels.umsida.ac.id/index.php/PELS/article/view/1452 <p>Abstract. The rapid advancement of technology, particularly in the plastics industry, is closely intertwined with the<br>development of machinery used in plastic production processes. Commonly used machines in plastic raw material<br>production include blow molding, injection molding, and extrusion. The production cycle time significantly affects<br>both the quality and quantity of production. While a faster production cycle may increase the quantity of output, it<br>does not necessarily guarantee an improvement in product quality. Hence, it is imperative for companies to identify<br>factors leading to production defects to plan controlled improvements. Product quality is a crucial consideration for<br>consumers when selecting products. PT. XYZ Pasuruan, a manufacturing company specializing in plastic packaging<br>processing, faces production issues involving defective products and the underlying factors causing them. This<br>results in time and cost losses due to the need to reproduce faulty products. Therefore, this research aims to develop<br>effective strategies for preventing and reducing production defects. Possible measures include improving production<br>processes, machinery, employee training, or changing raw material suppliers. By addressing the root causes of<br>these issues, the industry can enhance product quality, reduce production costs, and increase customer satisfaction..<br>Keywords - Blow Molding Machine; Product Failures; Product Quality</p> Muhammad Alriz Nur Aftian Ali Akbar Copyright (c) 2024 Muhammad Alriz Nur Aftian Muhammad Alriz Nur Aftian https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 232 238 10.21070/pels.v7i0.1452 Welding And Maintenance Factory Work Tools https://pels.umsida.ac.id/index.php/PELS/article/view/1453 <p>Abstract. The welding process is widely used to join metals. However, there are still many welders who have not <br>mastered welding techniques that comply with the standards set by welding associations. This research was <br>conducted to find out how the welding process and maintenance of factory work tools works. Research begins by <br>identifying machine damage or factory equipment damage. Once the damage is known, repairs are then carried out <br>on the damaged machine. The results of research regarding welding and maintenance of factory work equipment <br>show that damaged factory equipment must receive regular inspection and maintenance. Factors that cause damage <br>to factory work equipment are human error, lack of diligent cleaning of industrial work tools, and can also be <br>caused by the age of industrial machines. <br>Keywords – Damage; Welding; Maintenance</p> <p><br>Abstrak. Proses pengelasan banyak digunakan untuk menyambung logam-logam. Akan tetapi tidak banyak juru las <br>yang belum menguasai teknik pengelasan sesuai standart yang ditetapkan oleh asosiasi pengelasan. Penelitian ini <br>dilakukan untuk mengetahui bagaimana proses pengelasan dan perawatan alat-alat kerja pabrik. Penelitian diawali <br>dengan mengidentifikasi kerusakan pada mesin atau kerusakan alat-alat pabrik. Setelah diketahui kerusakannya, <br>selanjutnya dilakukan perbaikan pada mesin yang rusak. Hasil penelitian dari pengelasan dan perawatan alat kerja <br>pabrik menunjukkan bahwa alat pabrik yang sudah mengalami kerusakan harus mendapatkan pemeriksaan dan <br>perawatan secara rutin. Faktor penyebab kerusakan pada alat-alat kerja pabrik dikarenakan adanya human error <br>atau kesalahan manusia, kurang rajin membersihkan alat-alat kerja industri, dan juga bisa disebabkan karena usia <br>mesin industri sudah tua. <br>Kata Kunci – Kerusakan; Pengelasan; Perawatan</p> Muchamad Reysa Pahlewi Ali Akbar Copyright (c) 2024 Muchamad reysa pahlewi Muchamad reysa pahlewi https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 240 244 10.21070/pels.v7i0.1453 Analysis Of Shoe Product Quality Control At PT XYZ https://pels.umsida.ac.id/index.php/PELS/article/view/1466 <p><em>PT XYZ is a company located in East Java, Indonesia. The company is engaged in manufacturing footwear such as shoes and sandals using the latest technology, namely injection molding. As a company engaged in the field of footwear, of course PT XYZ always prioritizes quality control to ensure the quality of products that have been produced by not neglecting quality control in every production process. The daily production capacity of PT XYZ using 7 machines is 2000 - 3000 pairs of shoes for each machine and, if 7 machines then the production that can be produced in 1 day can range from 15,000 - 21,000 pairs every day. With a very high production capacity PT XYZ still controls the quality of shoes using the six sigma method.</em></p> Miftah Arzaq M. Miftah Arzaq Rahmansyah Indah Apriliana Sari Wulandari Copyright (c) 2024 Miftah Arzaq, M. Miftah Arzaq Rahmansyah, Indah Apriliana Sari Wulandari https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 273 278 10.21070/pels.v7i0.1466 Analysis of Weld Joint Strength on Galvanized Material Using Rb-26 Electrode https://pels.umsida.ac.id/index.php/PELS/article/view/1469 <p>Practical work is a form of education and vocational implementation that is followed by students so that students can work directly in the business world as well as industry or fabrication. Practical work aims to prepare students to become productive human beings and can immediately work in accordance with their respective fields, students can also feel the atmosphere of production and can help deal with some problems- problems experienced by Engineering professionals inside the factory. Therefore, in welding, knowledge must accompany practice, in more detail it can be said that the design of building construction and machines with welded joints, must also be planned about welding methods. This method of inspection, welding material, and type of weld to be used, based on the function of the building parts or machines designed. Based on the definition of DIN (Deutch Industrie Normen) Galvanized Welded Broken Products is the best way to assemble or connect constructions and products made from iron. This welding method is specifically performed for galvanized materials. The iron welding process requires special preparation and skills. Based on the results of fieldwork practices that have been carried out in CV. Sumber Agung Widodo, The process of making panel tables is carried out into several stages, namely the hollow iron cutting, 45-degree galvanized angle cutting, iron plate cutting, elbow iron cutting, splicing by welding, frame painting, and mounting a series of panels to the finished panel table. The materials used are hollow iron, iron plate, elbow iron, iron paint, wheels. The tools used are ac current welding machines, grinders and elbow rulers. Stage</p> M.Rizky Faisal Dermawan Wasiana Iswanto Iswanto Copyright (c) 2024 M.Rizky Faisal Dermawan Wasiana, Iswanto Iswanto https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 295 299 10.21070/pels.v7i0.1469 Conveyor Roll Manufacturing Conveyor Roll Manufacturing https://pels.umsida.ac.id/index.php/PELS/article/view/1483 <p><em>Field work practice is a form of educational and vocational implementation that is participated in by students. Practical work aims to prepare students to become productive people and can work directly in their respective fields. Students can also experience the production atmosphere and can help deal with several problems experienced by professional engineering in factories. Conveyor systems can be said to be part of the equipment mechanics that transport materials from one place to another. This system is useful when goods need to be transported and moved from one place to another. Its existence makes the process easier, faster and more comfortable. In various industries, conveyors are very important. This system is designed to withstand heavy workloads and extreme weather conditions. The ability to adjust certain angles to help move materials. Design is divided into two, namely planning and conceptualizing. Planning this research focused on designing the conveyor for the can and plastic bottle waste sorting machine, then the consumer needs for the conveyor for the can and plastic bottle waste sorting machine were arranged as follows: a) The conveyor is easy to operate. b) Does not endanger the operator. c) Easy maintenance. d) Energy efficient conveyor from carrying out practical field work at CV. According to Agung Widodo's source, it can be concluded as follows: Industrial Automation or Industrial Automation is basically technology related to the application of mechanical, electronic and computer-based information systems to operate and control production.</em></p> Ion Sheren Dheril Herwanto Ali Akbar Copyright (c) 2024 Ion Sheren Dheril Herwanto, Ali Akbar https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 352 354 10.21070/pels.v7i0.1483 Extruder Component Repair on Extrusion Machine https://pels.umsida.ac.id/index.php/PELS/article/view/1486 <p><em>Practical work is a form of educational and vocational organization that is participated in by students so that students can work directly in the world of business, industry or fabrication. Practical work aims to prepare students to become productive people and be able to work directly in their respective fields. Students can also experience the production atmosphere experienced by professional engineering in a factory. This research process requires several materials and equipment as equipment in the design process as well as several methods. data collection and problem formulation in the form of morphological design. The method for repairing the screw extruder is re-poking the screw thread area which was proposed by the customer technician who said that the screw thread area was starting to wear out so it needed to be rejuvenated. Maintenance Preventive Maintenance. Re-priming or rejuvenating the threaded part because the threaded part has started to wear out. For example, in scheduling, for screw components until now there has been no regular maintenance or replacement to overcome damage. After the time of re-positioning the screw enters the turning stage to smooth the surface before the unevenness of the re-positioning or CV. Sumber Agung Widodo is a company that has complete manufacturing equipment that can produce various kinds of spare parts from various kinds of production machines. Various problems that often occur have an impact on the ongoing production process. Some of the causes include not only material factors, but human resource factors also influence production quality.</em></p> Wiky Anjaya Arwiyono Prantasi Harmi Tjahjanti Copyright (c) 2024 Wiky Anjaya Arwiyono, Prantasi Harmi Tjahjanti https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 369 372 10.21070/pels.v7i0.1486 Polar Machine Maintenance https://pels.umsida.ac.id/index.php/PELS/article/view/1498 <p>Polar Mohr machines are a well-known brand in the printing industry known for its quality paper cutting <br>machines and printing materials. The method used is descriptive research method focused on the problem. The <br>discussion of the polar mohr machine is starting from the position button, length button, reverse button, forward button, <br>reset button and start button. The results of the mohr polar machine are from the polar machine planning to PLC <br>assembly and installation. The conclusion of the polar machine is very helpful for smooth running in the industrial <br>world because it simplifies the process of cutting paper. One of the characteristics of the Polar Mohr machine is its <br>ability to make the cuts we want.<br>Keywords – polar mohr; paper machine panels; panel wiring</p> Surya Mahendra Akhmad Ahfas Copyright (c) 2024 Surya Mahendra, Akhmad Ahfas https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 432 437 10.21070/pels.v7i0.1498 Website of the Health Office of PPKB (Population Control, and Family Planning) of Mojokerto City https://pels.umsida.ac.id/index.php/PELS/article/view/1503 <p><em>The use of information technology has become mandatory in the current digital era, followed by the increasingly widespread development of the internet, which has further strengthened the importance of a web- based system. In designing a website-based system, the Department of Health, Population Control and Family Planning creates a Health Information System, PPKB Program, or Population Statistics. With this system, it explains the importance of the PPKB Health Strategy, in information related to population in an interesting and easy to understand way, detailed information regarding available health services, the PPKB (Population Control and Family Planning) program, population policies, and the latest initiatives. Tools or Interactives that help users in planning a family or understanding population statistics. Responsive design that ensures the website can be accessed well on various devices, including mobile phones and tablets, and ensures accessibility for users with special needs such as health services, information, or adequate accessibility features such as clear actions for visitors to engage further, or such as register for the PPKB program, look for further health information or can join relevant events or campaigns. Integrate social media, video streaming or other latest technology to improve user order and distribute information more effectively. This website must be a valuable and reliable source of information for the residents of the city of Mojokerto, providing needed support in health, PPKB programs, and understanding population issues. The success of this website depends on its ease of use, relevance of content, and its ability to encourage positive actions from visitors.</em></p> Mochammad Daffa Khasifi Nashrullah Suprianto Suprianto Copyright (c) 2024 Mochammad Daffa Khasifi Nashrullah, Suprianto Suprianto https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 466 473 10.21070/pels.v7i0.1503 Examination of the Air Conditioning System of Toyota Avanza Car at CV. Cipta Artha Berlian Pasuruan https://pels.umsida.ac.id/index.php/PELS/article/view/1524 <p>The air conditioning (AC) system in a vehicle is a crucial component, especially in cars. Its primary task is to ensure the comfort of the driver and passengers. This system requires monitoring and maintenance for long-term use. This also applies to the AC system in Avanza/Xenia vehicles. Maintenance and repairs are ways to address issues that may weaken or damage your vehicle's AC system. Of course, maintenance and repair procedures should be carried out in accordance with proper troubleshooting rules. Troubleshooting involves a process known as diagnosis, which is the step to identify signs of damage and schedule investigations to resolve existing problems. Inspections involve using measuring tools such as a compressor and a multimeter on the magnetic clutch and evaporator to check the main components of the AC system. This is done to determine whether these components are operating properly according to service and maintenance standards for vehicle AC systems. Upon identification, corrective actions can be taken. The results show that the resistance value of the magnetic clutch coil is 3.9 ohms, and the magnetic clutch gap is 0.5 mm. The blower system resistance with three speed variations is 2.6 ohms at the low position, 0.7 ohms at the middle position, and 0 ohms at the high position. The blower motor resistance is 4 ohms. The measured values fall within the service limits or normal range as per the Avanza/Xenia manual. Therefore, it can be concluded that there are no issues with the AC system in the Avanza/Xenia vehicle, and the condition of the AC system is normal and suitable for use. No repair procedures are required, only routine maintenance is performed to ensure all components are in good condition.</p> <p><strong>Highlights:</strong></p> <ul> <li>Routine maintenance prolongs AC system lifespan.</li> <li>Accurate diagnosis prevents potential issues.</li> <li>Component inspection ensures system health.</li> </ul> <p><strong>Keywords: </strong>PMCB, Vehicle Air Conditioning System, Maintenance, Repair, Troubleshooting</p> Indra Bhekti Utomo Copyright (c) 2024 Indra Bhekti Utomo https://creativecommons.org/licenses/by/4.0 2024-03-15 2024-03-15 7 549 554 10.21070/pels.v7i0.1524 Field Work Practice Report Pt. Jatim Taman Steel Mfg https://pels.umsida.ac.id/index.php/PELS/article/view/1543 <p>PT. JATIM TAMAN STEEL Mfg. is a producer of Special Steel that produces Flat Bar and Round Bar. PT. JATIM TAMAN STEEL Mfg. is a member of Mitsubishi Steel Group, currently has two plants located in Sidoarjo and Gresik, with a vision to become a leading producer of special steel with the best quality in its field, with people who are highly committed and reliable and care for the environment.Inside the company PT. JATIM TAMAN STEEL Mfg. there is a workshop Dum truck vehicles and heavy equipment in general will experience damage, both dum trucks and other heavy equipment. Therefore, maintenance and periodic maintenance are needed to overcome severe damage. There are several kinds of damage that will occur to dum trucks and heavy equipment if not routinely to carry out vehicle maintenance or service. For example, the sound of the engine will sound rough until there will be damage to the partitions in the machine and it is required to be done down the machine&nbsp; This research was conducted at the IRGA Department. This research will be conducted in August 2023. The calorific corrective actions carried out are only limited to the draft proposal. This research method will explain the steps of designing improvements with the Six Sigma method used systematically.</p> <p><strong>Highlights:</strong></p> <ul> <li>Regular maintenance prevents costly damage.</li> <li>Six Sigma ensures systematic improvement.</li> <li>Vision: Leading in quality and environmental care.</li> </ul> <p><strong>Keywords: </strong>Steel Bar Casting (billet), Flat Bar, Round Bar Production</p> A'rasy Fahruddin Moh. Faisal Araffi Copyright (c) 2024 A'rasy Fahruddin, Moh. Faisal Araffi https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 600 604 10.21070/pels.v7i0.1543 Development of ETS (E-Ticketing System) Module for Issue Management at PT Pelayaran Nasional Ekalya Purnamasari https://pels.umsida.ac.id/index.php/PELS/article/view/1586 <p>This study presents a research proposal aimed at addressing the need for improved internal management systems in the logistics industry. The goal is to introduce an Employee Tracking System (ETS) module integrated with the Human Resource Information System (HRIS) to facilitate real-time communication and problem-solving within the organization. The study focuses on the practical challenges of organizational management and the ongoing evolution of information technology in the workplace. The proposed ETS module is expected to enhance employee communication and streamline issue resolution, ultimately contributing to improved organizational efficiency and effectiveness. The research methodology involves a one-month internship program, during which students will work on implementing the ETS module and evaluating its impact on internal management processes. The results of this study are expected to provide valuable insights into the potential benefits of integrating information systems in the logistics industry, with implications for similar organizations seeking to modernize their internal management practices.</p> <p><strong>Highlight :</strong></p> <ul data-sourcepos="5:1-6:62"> <li data-sourcepos="5:1-5:76">Problem:&nbsp;Logistics industry needs better internal management systems.</li> <li data-sourcepos="6:1-6:62">Solution:&nbsp;Integrate Employee Tracking System (ETS) with Human Resource Information System (HRIS) for real-time communication and problem-solving.</li> <li data-sourcepos="7:1-7:81">Research:&nbsp;Internship program implements and evaluates ETS module to assess impact on efficiency and effectiveness.</li> </ul> <p><strong>Keywords:</strong> Logistics, Employee Tracking System, HRIS integration, Real-time communication, Organizational efficiency</p> Muhammad Syamsuddin Uce Indahyanti Copyright (c) 2024 Muhammad Syamsuddin, Uce Indahyanti https://creativecommons.org/licenses/by/4.0 2024-02-21 2024-02-21 7 55 61 10.21070/pels.v7i0.1586 Implementation of Three Dimensional Virtual Reality on Android Based AtTanwir Umsida Tower https://pels.umsida.ac.id/index.php/PELS/article/view/1193 <p>In the current digital era, many technologies are being developed, one of which is virtual reality or VR technology,<br>VR can be used for various problems in the current era including the introduction of an item, building, etc. At the<br>University of Muhammadiyah Sidoarjo (UMSIDA) itself, the 23 floor At-Tanwir Tower building will be built which<br>later have many facilities for educators, students or the community. Of course, an introduction to the current era is<br>needed, namely VR, with the creation of the Android based At-Tanwir VR Tower, it is hoped that it will be easy to<br>recognize the outdoor/indoor environment of the building and be able to introduce the building to the wider<br>community. Later, VR users can look around and explore outside and inside the building from the parking lot, grasses,<br>classrooms, auditorium, theater stage, cafeteria and the observatory room, all of which are three dimensional.</p> Putra Agung Novianto Rohman Dijaya Copyright (c) 2024 Putra Agung Novianto, Rohman Dijaya https://creativecommons.org/licenses/by/4.0 2024-03-08 2024-03-08 7 174 183 10.21070/pels.v7i0.1193 Classification of Meme Sentiment Analysis On Kaggle.com Sites To Use Support Vector Machine Algorithm https://pels.umsida.ac.id/index.php/PELS/article/view/1194 <p>Meme is currently one of the media that is often used to convey a message or opinion on a topic that is currently hot <br>in the community, and is widely discussed on social media. Apart from being a means of humor, memes are also <br>commonly used as a medium to convey satire, even 'ridicule' to a party. This encourages curiosity to capture and <br>classify memes circulating on social media, including through public data available on the Kaggle. This study aims <br>to classify memes into three classes of sentiment, namely positive, neutral, and negative. In this case, the researcher <br>uses Support Vector Machine algorithm with Radial Basis Function kernel because it can produce the highest <br>accuracy compared to other kernels. The dataset downloaded through the Kaggle website is in the form of memes that <br>have been labeled and accompanied by Optical Character Recognition (OCR) results consisting of a total of 6,992 <br>meme data. By using Support Vector Machine algorithm, the classification results are obtained at 73.75% while using <br>Naïve Bayes algorithm to obtain an accuracy of 61.24%. This proves that the application of Support Vector Machine <br>algorithm in document classification is able to produce a fairly high accuracy when compared to the Naïve Bayes <br>algorithm</p> Dedy Rizaldi Ika Ratna Indra Astutik Mochamad Alfan Rosid Copyright (c) 2024 Dedy Rizaldi, Ika Ratna Indra Astutik, Mochamad Alfan Rosid https://creativecommons.org/licenses/by/4.0 2024-03-08 2024-03-08 7 184 190 10.21070/pels.v7i0.1194 Hardware Asset Recording Information System Based on Web at PT. Smart Connect https://pels.umsida.ac.id/index.php/PELS/article/view/1457 <p>PT. Smart Connect is an IT company that focuses on the design, development, and maintenance of LAN and WAN networks, network routers, and websites. The company has many assets in the form of computer network devices that need to be recorded meticulously. Currently, asset recording is still done manually using Google Spreadsheet, which is considered less effective and time-consuming. In the rapidly evolving digital era, the utilization of technology and information systems has become crucial. The proper use of information systems can enhance efficiency in managing asset data and facilitate information access. Therefore, PT. Smart Connect requires further improvement in its information system for asset recording and reporting. The goal is to expedite the asset recording process and provide more detailed reports, thereby increasing efficiency and productivity in company asset management.</p> Naufal Galfan Syah Arif Senja Fitrani Copyright (c) 2024 Naufal Galfan Syah, Arif Senja Fitrani https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 251 261 10.21070/pels.v7i0.1457 Software Quality Assurance For The Auto Bayar Application (Case Study: PT Auto Serba Digital) https://pels.umsida.ac.id/index.php/PELS/article/view/1463 <p><em>Software Quality Assurance (SQA) plays a crucial role in the development of applications in startups like PT Auto Serba Digital, which focuses on auto-pay applications. Startups like Auto Serba Digital often face challenges of limited time and resources, making SQA strategic in ensuring product quality and competitiveness in the market. SQA helps startups identify, prevent, and rectify software defects, reducing the risk of failure and enhancing customer satisfaction. In the context of auto-pay applications, SQA is key in securing critical payment transactions for business success, besides ensuring compliance with applicable security standards and regulations. Effectively integrating SQA into the software development lifecycle is a critical step in ensuring high-quality products and maintaining the company's reputation in a rapidly changing market. Therefore, high-quality software development with the assistance of SQA is the key to success for innovative startups like Auto Serba Digital. </em></p> Bryan Yuditya Prakasa Copyright (c) 2024 Bryan Yuditya Prakasa https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 262 272 10.21070/pels.v7i0.1463 Website-Based "Inventory Of Goods" Information System For Infrastructure Facilities At Smks Antartika 2 Sidoarjo https://pels.umsida.ac.id/index.php/PELS/article/view/1467 <p><em>SMK Antartika 2 Sidoarjo is an educational institution that has received support from the Education Office as an Industrial Revolution 4.0 school. SMK Antartika 2 Sidoarjo needs to take advantage of technological advances. School infrastructure is very important for the process of education, monitoring and effective inventory management. Therefore, researchers built an information system "Inventory of Goods" that can be accessed via the internet for school infrastructure. This research method uses the System Development Life Cycle (SDLC) waterfall model approach to build a web-based "Item Inventory" information system. SMK Antartika 2 Sidoarjo requires further information system improvements along with the development of institutions and the need for more sophisticated inventory management, so that input and storage are no longer carried out manually so that decision making can be done quickly and accurately. The program has achieved success by implementing a web-based "Item Inventory" Information System in schools. The result is that the implementation of this system has improved the efficiency, transparency, and effectiveness of overall inventory management.</em></p> Muchamad Firmansyah Tubira Suprianto Copyright (c) 2024 Muchamad Firmansyah Tubira, Suprianto https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 278 294 10.21070/pels.v7i0.1467 Website Based KBIH Information System Design Using the SDLC Method (Case Study of Jabal Nur Sidoarjo) https://pels.umsida.ac.id/index.php/PELS/article/view/1487 <p><em>KBIH Jabal Nur is an institution that operates in the field of managing prospective Hajj and Umrah pilgrims in groups. KBIH Jabal Nur is an institution under the auspices of PDM Sidoarjo. KBIH Jabal Nur was founded in 2011, currently the information system is still traditional or manual where promotions for Hajj and Umrah registration are spread through verbal communication. Therefore, the author took the initiative to create a web-based information system to make it easier for users or pilgrims to find more in-depth information about Hajj and Umrah registration. The system used by the author is SDLC or system development life cycle, this method is used in creating or developing information systems that aim to solve problems effectively. On this website there is the history of KBIH, management structure, promotion of guidance registration and also social media. Of course, this website was designed using the SDLC method or system development life cycle to make it easier to create an author's website.</em></p> Deva Martha Shella Metatia Intan Mauliana Copyright (c) 2024 Deva Martha Shella, Metatia Intan Mauliana https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 373 379 10.21070/pels.v7i0.1487 Optimization of Digital Platforms as Part of SEO-Based Digital Marketing Strategy to Appear on Google https://pels.umsida.ac.id/index.php/PELS/article/view/1490 <p>This study aims to analyze the benefits of utilizing five digital platforms, namely Pinterest, ISSUU, Tumblr,<br>Flickr, and Carousell, to appear in Google search. This study uses a qualitative descriptive method with data<br>collection techniques through observation, analysis, and documentation. The results of the study show that each<br>digital platform has different characteristics and functions in digital marketing. Digital platforms also have their<br>own advantages and disadvantages in increasing visibility and relevance in Google search. This study provides<br>recommendations for products or services that want to use digital platforms as part of their SEO-based digital<br>marketing strategy.</p> Naufal Ariq Wijaya Ade Eviyanti Copyright (c) 2024 Naufal Ariq Wijaya, Ade Eviyanti https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 380 390 10.21070/pels.v7i0.1490 Creating Product Profile Website For Jersey Online Figures https://pels.umsida.ac.id/index.php/PELS/article/view/1491 <p><em>In the current digital era, websites have become an important means of promoting products to potential consumers. Online jersey figures are a product that is popular among sports fans. This product usually displays pictures or names of sports figures admired by fans. This research aims to develop a product profile website which is an important means of promoting products to potential consumers. A product profile website is a website that displays information about the products offered by a company. This website usually contains information about product specifications, prices, how to order, and other features. An effective product profile website can help companies increase product sales. This research also aims to prove that product profile websites are created using The waterfall method is suitable for creating websites with basic features because this method is easy to understand and apply. These elements can be text, images, videos and other elements. Which can be an effective means of promoting products. This evidence will be obtained by conducting research that measures the effectiveness of product profile websites in increasing product sales. The results of this research show that product profile websites created using the Waterfall method are more effective in attracting the attention of potential consumers and encouraging them to take action, such as buying a product.</em></p> Muhammad Rifaldi Rusminudi Cindy Taurusta Copyright (c) 2024 Muhammad Rifaldi Rusminudi, Cindy Taurusta https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 391 399 10.21070/pels.v7i0.1491 Text Preprocessing on Emotional Tweets Case Study: Covid-19 Vaccine Rejection https://pels.umsida.ac.id/index.php/PELS/article/view/1501 <p>Emotion is a feeling, response, reaction to an event or event experienced by a person, can be expressed <br>verbally (spoken) or non-verbally (body language). In the digital world, more precisely text-based social media, <br>humans express their emotions by giving opinions through text / typing and there is a need for emotional analysis <br>related to what opinions are conveyed by that person. Therefore, to overcome the above problems, it is necessary to <br>classify to find out what type of emotion is conveyed in the text. Emotion classification is a technique to extract <br>information in the form of a person's response or opinion on an issue or event which is then grouped based on the <br>types of emotions. The opinions used will be taken from social media twitter. The types of emotion grouping are <br>divided into seven classes, namely anticipation, pleasure, trust, anger, disgust, fear, and sadness. In this practical <br>work, the author has created a dictionary that contains key words for each aspect of emotion</p> Dewi Melisa Putri Yulian Findawati Copyright (c) 2024 Dewi Melisa Putri, Yulian Findawati https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 446 453 10.21070/pels.v7i0.1501 Electric Motor Maintenance https://pels.umsida.ac.id/index.php/PELS/article/view/1596 <p>Electric motors play a vital role in industrial operations, and their protection from overloading is crucial for ensuring longevity, safety, and efficiency. This article explores the significance of motor overload protection devices in safeguarding motors from damage caused by overloading, which can lead to overheating and potential failure. It discusses the functioning of various protection devices, such as thermal, magnetic, and electronic overload relays, and emphasizes the importance of selecting the right device based on motor type, size, application, and environmental conditions. The article also highlights the role of regular maintenance and adherence to safety standards in ensuring the reliable and effective functioning of these protection systems. By implementing appropriate protection measures, companies can optimize energy use, increase operational efficiency, and reduce damage and production disruptions, thus contributing to the sustainability and safety of electric motors in industrial settings vulnerable to overloading.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Overload relays protect the motor, motor branch circuit, and motor branch circuit components from excessive heat from the overload condition</span></li> <li><span class="">Overload relays are part of the motor starter and protect the motor by monitoring the current flowing in the circuit</span></li> <li><span class="">The selection of an overload relay is important because repeated tripping and reset can reduce the mechanical life of the relay and may cause damage to the motor</span></li> </ul> <p><span class=""><strong>Keywords:</strong> electric motors, overload protection devices, thermal overload relays, magnetic overload relays, electronic overload relays, motor type.</span></p> Akbar Rayhan Hasfi Syamsudduha Syahrorini Copyright (c) 2024 Akbar Rayhan Hasfi, Syamsudduha Syahrorini https://creativecommons.org/licenses/by/4.0 2024-02-20 2024-02-20 7 10 14 10.21070/pels.v7i0.1596 NH Fuse Maintenance as Low Voltage Network Protection at PT. PLN ULP 3 Krian, Sidoarjo, East Java https://pels.umsida.ac.id/index.php/PELS/article/view/1583 <p>This internship report presents an analysis of the NH replacement low voltage network maintenance activity in the XYZ region. The goal of this study is to determine the network conditions and potential interference, and to replace NHs that have exceeded their useful life limit or have been damaged with NHs that have specifications suitable for the low voltage network. The method used in this study is low voltage network analysis, which is important to maintain network reliability. The results show that NH replacement is a crucial maintenance activity that can minimize potential disruption to the network and prevent damage to the NH. The implication of this study is that by enhancing low voltage network reliability through NH replacement, the overall performance of the electric power distribution system can be improved.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">NH replacement is a crucial maintenance activity for low voltage networks.</span></li> <li><span class="">Low voltage network analysis is important to maintain network reliability.</span></li> <li><span class="">NH replacement can minimize potential disruption to the network and prevent damage to the NH.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> NH replacement, low voltage network, maintenance activity, network conditions, potential interference.</span></p> Fikri Alam Firmansyah Izza Anshory Copyright (c) 2024 Fikri Alam Firmansyah, Izza Anshory https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 70 74 10.21070/pels.v7i0.1583 Maintenance On Ice Tube Maker Machine CV. Sampoerna Prima Gemilang https://pels.umsida.ac.id/index.php/PELS/article/view/1578 <p>The industrial ice machine, particularly the ice tube maker, requires regular maintenance to ensure optimal performance, extend its lifespan, and minimize unexpected breakdowns. Regular maintenance allows for timely inspection and cleaning of critical components, such as the condenser, evaporator, and water filtration system, to prevent clogging and hindering the machine's ability to produce ice at its optimal output. Preventative maintenance also plays a crucial role in identifying and addressing potential issues early on, preventing them from escalating into major problems and reducing the chances of unexpected breakdowns. This proactive approach reduces the risk of costly repairs and prolonged periods of downtime, ensuring that the ice machine is up and running when needed. Practical tips for preventative maintenance include regular cleaning and sanitizing, replacing water filters, inspecting and cleaning condenser coils, and scheduling professional maintenance. Prioritizing preventative maintenance for the ice tube maker is essential for maximizing performance, extending equipment lifespan, and minimizing downtime and costly repairs, which can have significant implications for businesses that rely on this equipment.</p> <p><strong>Highlight :</strong></p> <ul data-sourcepos="5:1-5:46"> <li data-sourcepos="5:1-5:46">Preventative maintenance&nbsp;is crucial for optimal performance,&nbsp;lifespan,&nbsp;and breakdown prevention of ice tube makers.</li> <li data-sourcepos="6:1-6:94">Regular cleaning, filter replacement, coil inspection, and professional service&nbsp;are key maintenance practices.</li> <li data-sourcepos="7:1-7:112">Reduced downtime, repair costs, and maximized performance&nbsp;are significant benefits of proper maintenance.</li> </ul> <p><strong>keywords :</strong> ice tube maker, maintenance, lifespan, performance, breakdown prevention.</p> Arief Tri Wicaksono Jamaluddin Copyright (c) 2024 Arief Tri Wicaksono, Jamaluddin https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 91 94 10.21070/pels.v7i0.1578 ATS (Automatic Transfer Switch) Transmission System as Power Supplier for Pahlawan Booster https://pels.umsida.ac.id/index.php/PELS/article/view/1577 <p>This research aims to investigate the effectiveness of the Automatic Transfer Switch (ATS) system in power transmission by observing and simulating its operation. The results show that the ATS system is highly effective in minimizing downtime during power outages by automatically switching to a backup power source. This discovery has important implications for the management of distributed power networks, particularly in improving responsiveness to power outages. However, the ATS system still has some shortcomings that need to be addressed to avoid potential impacts. Overall, this study highlights the importance of the ATS system in ensuring uninterrupted power supply and the need for further research to improve its performance.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The ATS system is highly effective in minimizing downtime during power outages.</span></li> <li><span class="">The ATS system has important implications for the management of distributed power networks.</span></li> <li><span class="">Further research is needed to improve the performance of the ATS system</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Automatic Transfer Switch, Power Transmission, Downtime, Backup Power Source, Distributed Power Networks.</span></p> Nur Rachmad Arifin Yusuf Manggala Dinata Farid Setyo Pamungkas Copyright (c) 2024 Nur Rachmad Arifin, Yusuf Manggala Dinata, Farid Setyo Pamungkas https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 95 98 10.21070/pels.v7i0.1577 Capacitor Bank Panel Design to Improve Industrial Power System Efficiency and Safety https://pels.umsida.ac.id/index.php/PELS/article/view/1449 <p><em>Industrial loads generally use control equipment and power electronics that use semiconductor materials that are very sensitive to voltage fluctuations. As reactive power compensation, industries usually use capacitor banks to increase power factor, reduce losses and increase line capacity. But it turns out that the use of capacitor banks also causes problems related to capacitor bank switching during the energizing process. During the energizing process, transient voltages and currents will be generated which can potentially damage control equipment, power electronic equipment, switching equipment and the capacitor bank itself. The Capacitor Bank panel assembly process involves the preparation of components such as MCB (Miniature Circuit Breaker), MCCB (Molded Case Circuit Breaker), Capacitor Bank, and other components. After that, these components are carefully assembled according to the pre-prepared design. Next, the installation of the Capacitor Bank panel involves mounting the panel to the location according to the plan and connecting it to the building's main power system. Accurate wiring and meticulous testing are required to ensure that the panels function properly. Therefore, a good understanding of the assembly and installation process of Capacitor Bank panels is essential to ensure efficient, and safety.</em></p> Yogi Adhimanata Shazana Dhiya A Copyright (c) 2024 Yogi Adhimanata, Shazana Dhiya A https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 233 239 10.21070/pels.v7i0.1449 Assembly and Installation of SDP Lighting Panels https://pels.umsida.ac.id/index.php/PELS/article/view/1447 <p>Electrical panels have an important role in distributing electrical energy and securing it. One type of <br>electrical panel that is often used is the SDP Panel (Sub Distribution Panel), especially in the context of lighting. This <br>article discusses the assembly and installation process of SDP Lighting Panels, which have a crucial role in <br>maintaining the availability, efficiency and safety of lighting systems. The SDP Panel assembly process involves <br>preparing components such as MCB (Miniature Circuit Breaker), MCCB (Moulded Case Circuit Breaker), Fuse , <br>ELCB (Earth Leakage Circuit Breaker), and other components. After that, these components are carefully assembled <br>according to the previously prepared design. Next, SDP Panel installation involves installing the panels to a location <br>according to the plan and connecting them to the building's main power system. Accurate wiring and thorough testing <br>are necessary to ensure that the panels function properly. It is important to understand that SDP Lighting Panel <br>installations must comply with applicable electrical safety regulations and standards to avoid the risk of fire, electrical <br>disturbances or injury. Errors in the installation or assembly process can have a negative impact on the lighting <br>system and safety. Therefore, a good understanding of the SDP Lighting Panel assembly and installation process is <br>very important to ensure a reliable, efficient and safe lighting system</p> Rizky Habibur Rohman Izza Anshory Copyright (c) 2024 Rizky Habibur Rohman, Izza Anshory https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 217 222 10.21070/pels.v7i0.1447 Maintenance of Pole Mounted Circuit Breaker as Medium Voltage Network Protection at PT. PLN (Persero) UP3 Sidoarjo https://pels.umsida.ac.id/index.php/PELS/article/view/1456 <p><em>The increasing demand for electricity requires PT PLN (Persero) to provide a sufficient, reliable, safe, high-quality, and efficient source of electrical energy. In serving customers, especially those in the Medium Voltage (MV) category, good protective equipment is needed. However, conventional protective equipment often tends to be large, requires ample land space, and installation is time-consuming. This research covers variables such as contact resistance measurement, PMT (Power Circuit Breaker) synchronism testing, and insulation resistance measurement. Using the Research and Development (R&amp;D) method, the results of maintenance on the 20 kV PMT at PMCB KPI P. Sidomulyo, Buduran Subdistrict, revealed that the contact resistance measurement values for phases R, S, and T were below 100 µΩ, indicating good contact resistance. PMT synchronism testing produced time difference values that were within the permissible standard limits. The time difference when opening (open) was 0.7 ms, while when closing (close), it was 1.05 ms. Insulation resistance measurements showed values that met the standards, which were above 20 MΩ. Based on the research results, PMCB KPI P. Sidomulyo, Buduran Subdistrict, can still be considered suitable for use. With good protective equipment and measurements that meet the standards, the use of 20 kV PMT can remain efficient and safe for consumers.</em></p> Faisal Faris Arief Wisaksono Copyright (c) 2024 Faisal Faris, Arief Wisaksono https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 245 250 10.21070/pels.v7i0.1456 Implementation of Ventilation Panel Installation https://pels.umsida.ac.id/index.php/PELS/article/view/1474 <p><strong><em>Abstract</em></strong><em>. Electrical panels are an important component in industry, which provides security to electrical installations in various industrial sectors. Large-scale companies dominate this industry to meet the high needs of consumers and maintain the quality and security of electrical installations. Electric panels must be installed carefully, pay attention to the surrounding environment, and play an important role in controlling ventilation to regulate the temperature and air conditions inside the cage. This research uses qualitative methods to understand the process of making ventilation panels. The results cover two types of panels: electric panels and ventilation panels. Electric panels serve as storage for electrical components, protect from the surrounding environment, and facilitate the operation of electrical machines. Meanwhile, ventilation panels are a crucial part of modern farm management, adjusting temperature and humidity to suit the needs of animals. The components in the ventilation panel involve various elements such as MCBs, TORs, contactors, relays, busbars, and others. The process of creating ventilation panels includes steps such as sketching pictures, making electrical panel boxes, assembling components, busbar assembly, wiring, as well as QA and QC stages to ensure panel quality. This process ends with finishing and packing before delivery to the consumer. This research provides an in-depth understanding of the manufacture of ventilation panels, which is essential for modern industry and agriculture inining optimal environmental conditions.</em></p> Ahmad Rifandi Arief Wisaksono Copyright (c) 2024 Ahmad Rifandi, Arief Wisaksono https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 310 315 10.21070/pels.v7i0.1474 Wiring Diagram For The Ventilation Panel https://pels.umsida.ac.id/index.php/PELS/article/view/1475 <p><em>Wiring diagrams are an essential tool in the maintenance and repair of electrical systems, enabling quick identification of the source of the problem. Knowledge of electrical component symbols and their functions is important in reading wiring diagrams. Ventilation systems play a crucial role in closed environments such as chicken coops, maintaining air circulation and appropriate temperatures. Settings can be made automatically via the climate controller and control panel. Therefore, a basic understanding of the use of these devices is important for breeders. The research method used is descriptive qualitative with data collection in the field, especially at CV. Bintang Pratama Teknik, to study ventilation panels from wiring drawing in AutoCAD to assembly. The research results include an understanding of components such as electrical panels, AutoCAD, MCB, TOR, contractors, busbars, duct cables, and terminals. Drawing components using AutoCAD allows a better understanding of their design and functionality.</em></p> Achmad Fatchur Rochman Arief Wisaksono Copyright (c) 2024 Achmad Fatchur Rochman, Arief Wisaksono https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 316 320 10.21070/pels.v7i0.1475 Goss Community Offset Machine Wiring Panel Image (Paper) https://pels.umsida.ac.id/index.php/PELS/article/view/1476 <p>Abstract. Review control activities, especially reducing the quality of printouts on Goss Community offset machines, <br>are one of the quality control parameters carried out by each company. The Goss Community offset machine panel <br>itself is usually equipped with various buttons, settings and monitors that allow the operator to control various print <br>parameters, such as print speed, starting and stopping the machine, and so on. In this article we discuss the <br>understanding of the components of the Goss Community offset machine panel and drawing the wiring panel of the <br>Goss Community offset machine itself. The process of drawing the offset machine panel wiring is done by drawing the <br>monitor panel and drawing the wiring from the PWM control, to study the offset panel. from drawing wiring in <br>AutoCAD to assembly. And understanding of components such as MCB, contractor, power supply, relay, pwm, plc, <br>scr, diode, busbar. Drawing components using AutoCAD allows a better understanding of their design and <br>functionality.<br>Keywords - Quality, Parameters, wiring drawing, components Web Offset Goss Community</p> Andriyan Herqi Rossoleh Arief Wisaksono Copyright (c) 2024 Andriyan Herqi Rossoleh, Arief Wisaksono https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 321 334 10.21070/pels.v7i0.1476 Testing of The Insulation Resistance and Turns Test Ratio (TTR) of The Distribution Transformers at PT PLN (Pesero) UP3 Sidoarjo https://pels.umsida.ac.id/index.php/PELS/article/view/1478 <p><em> Electricity plays a vital role in human life and the economic growth of Indonesia. Therefore, a reliable electrical transmission and distribution system is essential. Transformers, especially in an industrial context, play a key role in power supply. Transformer maintenance is a critical step in maintaining a stable flow of electricity. This study adopts the Research and Development (R&amp;D) method and focuses on measuring insulation resistance and voltage ratios in the context of transformer maintenance. The research was conducted at the Pole Transformer Substation (GTT) in P. Melati, Sidoarjo Regency, East Java, starting in August 2023. The research variables involve measuring the insulation resistance referring to IEC standards and measuring the voltage ratio to ensure proper transformer performance. The test results indicate that the insulation resistance in the transformer, both on the primary and secondary sides, meets the standards, demonstrating that the transformer functions well and safely. Voltage ratio measurements closely approximate theoretical calculations and fall within a tolerance of ± 0.5%. This study underscores the importance of transformer maintenance in maintaining a stable flow of electricity. Proper maintenance will prevent disruptions that can be detrimental, such as current leakage or short circuits. With good maintenance, the continuity of a reliable and safe electricity distribution service for consumers can be ensured. &nbsp;</em></p> Muhammad Shofiyuddin Arief Wisaksono Copyright (c) 2024 Muhammad Shofiyuddin, Arief Wisaksono https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 339 344 10.21070/pels.v7i0.1478 Sub Distribution Panel’s Design Rancangan SubDistribution Panel https://pels.umsida.ac.id/index.php/PELS/article/view/1484 <p><em>Electrical panels play an important role as the center of electrical energy distribution, functioning to regulate the flow of electricity in a building. This distribution process requires something that can secure and divide the amount of power flowing, therefore the SDP (Sub Distribution Panel) panel is needed. This panel contains several components that are assembled into one unit so that it can function properly. This research uses a qualitative descriptive method that focuses on problems based on facts carried out by means of observation or observation, interviews, and studying documents. If all the techniques in this method are performed successfully, the accurate percentage of this research is 98%. This research produces a description of the process of making SDP panels from start to finish. This research resulted that the SDP panel has several functions, namely collecting and forwarding power to each load in each branch as needed, connecting and disconnecting the power distribution circuit and the safety of the power distribution system control.</em></p> Dikas Pandu Nanggala Akhmad Ahfas Copyright (c) 2024 Dikas Pandu Nanggala, Akhmad Ahfas https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 355 361 10.21070/pels.v7i0.1484 LVMDP Panel Planning on a 4 Storey Building https://pels.umsida.ac.id/index.php/PELS/article/view/1534 <p>The industrial internship program is a course that must be taken by students of Universitas Muhammadiyah Sidoarjo, in this context Electrical Engineering students take an internship in the field of electrical panel manufacturing construction. Electrical panels are a vital tool for electricity distribution systems, the need for electrical panels is very important to ensure electricity supply runs smoothly and safely. One type of panel that is commonly used is the LVMDP panel, a panel that distributes loads to panels with more capacity. The method used in this article is descriptive method, data collection is done by observation. The result of this activity is the amount of power needed in the building. Balanced load sharing can be seen from the R-S-T phase load sharing value. From the RST phase division, it is known that the power in phase R 12944,00W, in phase S 12912,00W, and in phase T 13032,00W.</p> <p><strong>Highlights:</strong></p> <ul> <li>Hands-on Training: Students gain practical experience in electrical panel manufacturing, enhancing their skills and understanding of real-world applications.</li> <li>Critical Infrastructure: LVMDP panels play a crucial role in ensuring efficient and safe electricity distribution within buildings, emphasizing the importance of their construction and maintenance.</li> <li>Data-Driven Analysis: The descriptive method and observational data collection provide insights into power needs and load sharing, facilitating informed decision-making for electrical system optimization.</li> </ul> <p><strong>Keywords: </strong>Panel, LVMDP, Planning</p> Achmad Arif Dwi Agus Hayatal Falah Copyright (c) 2024 Achmad Arif Dwi, Agus Hayatal Falah https://creativecommons.org/licenses/by/4.0 2024-03-17 2024-03-17 7 586 591 10.21070/pels.v7i0.1534 Maintenance of Pole Mounted Circuit Breaker as Medium Voltage Network Protection at PT PLN (Persero) UP3 Sidoarjo https://pels.umsida.ac.id/index.php/PELS/article/view/1556 <p>The increasing demand for electricity requires PT PLN (Persero) to provide a sufficient, reliable, safe, high-quality, and efficient source of electrical energy. In serving customers, especially those in the Medium Voltage (MV) category, good protective equipment is needed. However, conventional protective equipment often tends to be large, requires ample land space, and installation is time-consuming. This research covers variables such as contact resistance measurement, PMT (Power Circuit Breaker) synchronism testing, and insulation resistance measurement. Using the Research and Development (R&amp;D) method, the results of maintenance on the 20 kV PMT at PMCB KPI P. Sidomulyo, Buduran Subdistrict, revealed that the contact resistance measurement values for phases R, S, and T were below 100 µΩ, indicating good contact resistance. PMT synchronism testing produced time difference values that were within the permissible standard limits. The time difference when opening (open) was 0.7 ms, while when closing (close), it was 1.05 ms. Insulation resistance measurements showed values that met the standards, which were above 20 MΩ. Based on the research results, PMCB KPI P. Sidomulyo, Buduran Subdistrict, can still be considered suitable for use. With good protective equipment and measurements that meet the standards, the use of 20 kV PMT can remain efficient and safe for consumers.</p> <p><strong>Highlights:</strong></p> <ul> <li>Rising Electricity Demand: PT PLN (Persero) faces increasing electricity needs.</li> <li>Advanced Protection Solutions: Innovative equipment addresses conventional limitations.</li> <li>Research Insights: Findings ensure safety and reliability in medium voltage systems.</li> </ul> <p><strong>Keywords: </strong>Contact Resistance, Insulation Resistance, PMCB,&nbsp;Synchronism Testing</p> Chandra Darmawan Dwi Cahyo Shazana Dhiya Ayuni Copyright (c) 2024 Chandra Darmawan Dwi Cahyo, Shazana Dhiya Ayuni https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 614 619 10.21070/pels.v7i0.1556 Maintenance of Low Voltage Connect Panel at Distribution Substations at PT. PLN (Persero) ULP Krian Sidoarjo https://pels.umsida.ac.id/index.php/PELS/article/view/1531 <p>The low voltage switch panel (PHB-TR) is an important component in the electricity distribution system <br>which is used to connect electrical circuits with various equipment and loads. Proper maintenance of low voltage switchboards is essential to maintain optimal performance and minimize the risk of system failure. This article provides a brief overview of low-voltage switchboard maintenance practices, including routine inspections, preventative maintenance, and necessary corrective actions. In relation to the implementation of work, you should always refer to the applicable SOP to avoid work accidents. So that every job runs smoothly, there needs to be coordination between work implementation. The job executor must carry out his role in accordance with the job distribution that has been given.</p> <p><strong>Highlights:&nbsp;</strong></p> <ul> <li>Proper maintenance ensures optimal performance and reduces the risk of system failure.</li> <li>Adherence to applicable SOPs is crucial to prevent work accidents.</li> <li>Coordination and adherence to job distribution streamline work execution.</li> </ul> <p><strong>Keywords</strong>: PHB-TR Maintenance, Split Switch Panel Maintenance, Low Voltage Split Switch Board</p> Moh. Nurus Shobah Izza Anshory Copyright (c) 2024 Moh. Nurus Shobah, Izza Anshory https://creativecommons.org/licenses/by/4.0 2024-03-19 2024-03-19 7 644 650 10.21070/pels.v7i0.1531 Maintenance of 20 kV SUTM Distribution Network System (ROSE Feeder) at PT. PLN ULP Krian https://pels.umsida.ac.id/index.php/PELS/article/view/1536 <p>Distribution channel power distribution is usually called 20 KV Medium Voltage Overhead Line (SUTM). The main problem that frequently experiences disruptions in the distribution network's function is overcoming <br>disturbances quickly and precisely. The most frequent disturbances experienced in the electric power system are in the distribution network, such as disturbances due to lightning, wind, rain, animals and damage. This research aims to determine the disturbances in the 20 kV distribution network and how to maintain the 20 kV SUTM distribution network system at PT. PLN (Persero) ULP Krian which is currently being carried out. This research applies a method of carrying out preventive maintenance or what is known as ROW (Right Of Way) maintenance to increase the effectiveness of the 20 kV distribution network. The research results showed that the disturbances that occurred were caused by internal factors such as disturbances in the SUTM channel and external factors caused by natural disasters, animals and kites. Preventive maintenance or ROW (Right Of Way) maintenance is implemented as an effort to increase the effectiveness of the distribution network, such as cutting down tree branches that have touched the network, straightening slanted poles, cleaning broken wires, replacing lightning arresters, and replacing broken pins.</p> <p><strong>Highlights:</strong></p> <ul> <li>Swift disruption resolution: Prompt response is vital for network reliability.</li> <li>Internal and external factors: Disturbances arise from channel issues and external elements.</li> <li>Preventive maintenance: ROW approach enhances network efficiency, tackling various issues.</li> </ul> <p><strong>Keywords:</strong> Distribution Network Disruption, ROW Maintenance, Medium Voltage Air Line Maintenance</p> Yuswono Hariswanda Izza Anshory Copyright (c) 2024 Yuswono Hariswanda, Izza Anshory https://creativecommons.org/licenses/by/4.0 2024-03-19 2024-03-19 7 658 664 10.21070/pels.v7i0.1536 ATS Transmission System as Booster Power Supplier for PDAM Delta Tirta Sidoarjo https://pels.umsida.ac.id/index.php/PELS/article/view/1552 <p>The ATS (Authomatic Transfer Switch) transmission system is a power supply system with a system where if there is a disturbance or failure in the main power source it will automatically switch to a backup power source so that the electricity distribution system meets the needs. We conducted research by observing and simulating to find out how the ATS (Authomatic Transfer Switch) transmission system works. The research results show that the ATS (Authomatic Transfer Switch) system is very effective for transmission because it has an automatic system that can minimize the time the electricity stops. This discovery has important implications for the management of distributed power networks, especially in improving responsiveness to power outages and minimizing downtime. Even though the ATS (Authomatic Transfer Switch) system has many advantages, this system still has shortcomings which if not paid attention to will have an impact.</p> <p><strong>Highlights:</strong></p> <ul> <li> <p>Seamless Power Switching: ATS guarantees uninterrupted power by swiftly transitioning to backup during outages.</p> </li> <li> <p>Resilient Network: Research underscores ATS effectiveness in minimizing downtime, crucial for robust power distribution.</p> </li> <li> <p>Addressing Limitations: Despite benefits, vigilance is needed to mitigate potential shortcomings for sustained system reliability.</p> </li> </ul> <p><strong>Keywords:</strong> ATS (Automatic Transfer Switch), Power Supply System, Backup Power</p> Dwi Hadidjaja Farid Setyo Pamungkas Copyright (c) 2024 Dwi Hadidjaja, Farid Setyo Pamungkas https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 685 690 10.21070/pels.v7i0.1552 Chicken Sausage Production Process At PT. Charoen Pokphand Indonesia Food Division, Ngoro Unit https://pels.umsida.ac.id/index.php/PELS/article/view/1494 <p>This study investigated the chicken sausage production process and explored problem-solving strategies using fishbone diagrams. The analysis identified key stages, including raw material preparation, grinding, mixing, molding, cooking, cooling, cutting, and packaging. Fishbone diagrams were employed to systematically dissect process issues, revealing root causes related to personnel, methods, machines, materials, and environment. The findings highlight the effectiveness of fishbone diagrams for identifying and addressing production bottlenecks, paving the way for optimized efficiency and quality control in sausage manufacturing.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul data-sourcepos="3:1-4:2"> <li data-sourcepos="3:1-3:150">Process breakdown:&nbsp;The study identified key stages in chicken sausage production (preparation,&nbsp;grinding,&nbsp;mixing,&nbsp;etc.) using fishbone diagrams.</li> <li data-sourcepos="4:1-4:2">Root cause analysis:&nbsp;Fishbone diagrams helped pinpoint root causes of process issues across various factors (personnel,&nbsp;methods,&nbsp;machines,&nbsp;etc.).</li> <li data-sourcepos="5:1-5:184">Quality improvement:&nbsp;The findings suggest fishbone diagrams as an effective tool for identifying and addressing bottlenecks,&nbsp;leading to optimized efficiency and quality control.</li> </ul> <p><strong>Keywords:</strong> chicken sausage, production process, fishbone diagrams, problem-solving, quality control</p> Irma Kiranti Lukman Hudi Rifky Pradiko Copyright (c) 2024 Irma Kiranti, Lukman Hudi, Rifky Pradiko https://creativecommons.org/licenses/by/4.0 2024-02-20 2024-02-20 7 75 81 10.21070/pels.v7i0.1494 Final Product Quality Control Using Microbiological Testing Methods for Chicken Slaughterhouses (RPA) at PT. Ciomas Adisatwa (JAPFA) Sidoarjo https://pels.umsida.ac.id/index.php/PELS/article/view/1523 <p>The slaughter of animals as food needs to be carried out in accordance with certain technical and hygienic requirements that comply with standards. Applying an appropriate cutting process will affect the quality of the product produced. In this field work practice I carried out at PT. Ciomas Adisatwa (JAPFA) whose address is Waruberon Village, Balongbendo District, Sidoarjo Regency, East Java, 61263. The quality control method is carried out in the form of microbiological testing, namely testing for TPC, Escherichia coli bacteria, Coliform, Staphylococcus aureus, and Salmonella sp. Based on observations during practical field work at the PT Ciomas Adisatwa Balongbendo Sidoarjo Chicken Slaughterhouse, a production process is implemented that prioritizes strict cleanliness and sanitation to obtain high quality products. Based on the results of the microbiological test carried out at the PT Ciomas Adisatwa Chicken Slaughterhouse Laboratory, the results of the microbial concentration test did not exceed the maximum limit according to SNI regulations. So the quality of the chicken meat produced there can be said to be good.</p> <p><strong>Highlights:<br></strong></p> <ul> <li>Quality Control: Ensures adherence to standards for safe food production.</li> <li>Sanitation Priority: Strict cleanliness maintains product quality.</li> <li>Microbiological Testing: Results within acceptable limits assure good product quality.</li> </ul> <p><strong>Keywords:</strong> Broiler Chicken, Product Quality, Microbiological Test</p> Eka Sabela Rima Azara Pramitha Wahyu Oktarina Copyright (c) 2024 Eka Sabela, Rima Azara, Pramitha Wahyu Oktarina https://creativecommons.org/licenses/by/4.0 2024-03-15 2024-03-15 7 540 548 10.21070/pels.v7i0.1523 The Proces of Separation of Liquid Nira from Impairs (Purification) to Become a Raw Material for Sugar at the Gula Candi Baru Factory https://pels.umsida.ac.id/index.php/PELS/article/view/1551 <p>The aim of this observation is to understand the process of making sugar from sap to crystal sugar. This observation process was carried out at the Candi Baru Sugar Factory, Sidoarjo, East Java. The sugar making process starts from the milling station, refining station, evaporation station, cooking station and finishing station. At each station, the quality of the sap is first analyzed in a quality assurance laboratory to maintain good quality. At the purification stage, it is hoped that the juice can be cleaned from impurities, therefore the parameters of Brix, pol, temperature, pH, color balance, phosphate content, sulfur content, turbidity must be analyzed and informed to the production department to find out what needs to be repaired and what does not need to be repaired. so that the quality of the crystal sugar products produced remains guaranteed.</p> <p><strong>Highlights:</strong></p> <ul> <li> <p>Quality assurance: Regular analysis of sap quality ensures consistent production standards.</p> </li> <li> <p>Purification stage: Vital parameters such as Brix, pH, and color balance are monitored for impurity removal.</p> </li> <li> <p>Product quality: Maintenance and adjustments based on analysis ensure high-quality crystal sugar output.</p> </li> </ul> <p><strong>Keywords:</strong> Crystal Sugar, Cane (Saccharum officinarum L), Crystallization</p> Shiva Haiqa Arman Lukman Hudi Rahmaniah Akhairunnisa Copyright (c) 2024 Shiva Haiqa Arman, Lukman Hudi , Rahmaniah Akhairunnisa https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 609 613 10.21070/pels.v7i0.1551 Production Process and Management Quality Control Sajiku MSS (Menu Specific Seasoning) at PT. Ajinomoto Indonesia Mojokerto Factory https://pels.umsida.ac.id/index.php/PELS/article/view/1546 <p>PT Ajinomoto Indonesia Mojokerto Factory is a company that produces a wide range of seasoning dishes including MSG (Monosodium glutamate), Masako, Sajiku, and Mayumi. Some of these products in this article will be discussed in the section sajiku MSS. Sajiku consists of 2 types of products namely STB (sajiku seasoning flour) and MSS (sajikuspecific menu seasoning) which in both types have different flavors and packaging sizes. The process of making sajiku MSS starts with material acceptance, treatment, sieving, weighing, material crushing, material mixing, product packaging, metal detection, and product packing. From these stages in each process, control management is carried out which includes cleaning production equipment, cleaning rooms, cleaning pallets, separating abnormal materials, repairing machines, separating contaminated bulk, and blocking contaminated materials or products. In addition, there is Quality Control in the production process of sajiku MSS including NaCl content analysis, pH content analysis, seal strength test, and bubble test. In a series of Quality Control aims to ensure that before the product is distributed the product already meets the quality standards that have been determined.</p> <p><strong>Highlights:</strong></p> <ul> <li>Seasoning Production: PT Ajinomoto Indonesia Mojokerto Factory makes various seasonings, including Sajiku MSS.</li> <li>Sajiku MSS Process: Steps include material acceptance, treatment, mixing, packaging, and rigorous quality control.</li> <li>Quality Control Measures: NaCl, pH analysis, seal strength, and bubble tests ensure product quality before distribution.</li> </ul> <p><strong>Keywords:</strong> Sajiku, Instant Seasoning, Quality Control<strong><br></strong></p> Wiji Amelia Miranda Lukman Hudi Saiful Anwar Copyright (c) 2024 Wiji Amelia Miranda, Lukman Hudi, Saiful Anwar https://creativecommons.org/licenses/by/4.0 2024-03-19 2024-03-19 7 677 684 10.21070/pels.v7i0.1546 Production Process of Premium Processed Fish in the Form of Tofu (Fish Tofu) at PT. Indo Lautan Makmur Sidoarjo Regency, East Java https://pels.umsida.ac.id/index.php/PELS/article/view/1511 <p>This Field Work Practice (PKL) aims to find out the production process, especially processed fish tofu at PT. Indo Lautan Makmur. PKL was carried out on September 1, 2023 to September 30, 2023 at PT. Indo Lautan Makmur Sidoarjo Regency, East Java. The methods used in this field work practice are observation, interviews, field practice, dan literature study. PT. Indo Lautan Makmur is a food company that produces processed products from sea fish. The production process of processed fish tofu uses the main raw material surimi mixed with other supporting ingredients such as liquid ISP, tapioca folur, palm oil, ice water, flavouring, sugar, pepper, salt, white butter, and STTP. The sequence of production of processed fish tofu starts with the preparation of surimi, followed by the process of kneading, molding, boiling I, boiling II, cooling I, cutting, frying, cooling II, freezing, packaging, and then storing. The practical results show that process of processed fish tofu is in accordance with Good Manufacturing Practice (GMP) standards</p> Danya Mozza Elshiva Rima Azara Cakra Laksana Copyright (c) 2024 Danya Mozza Elshiva, Rima Azara, Cakra Laksana https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 487 493 10.21070/pels.v7i0.1511 Re-Layout Gudang Cat Jadi Menggunakan Metode Slp dan Shared Storage Untuk Meminimalkan Ongkos Material Handling https://pels.umsida.ac.id/index.php/PELS/article/view/1440 <p>-</p> Riqi Hidayatulloh Atikha Sidhi Cahyana Copyright (c) 2024 Riqi Hidayatulloh, Atikha Sidhi Cahyana https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 198 206 10.21070/pels.v7i0.1440 Application of the AHP Method to Assesment of Performance Levels of Production Employees of the Zenbo Division of PT. Mertex Indonesia https://pels.umsida.ac.id/index.php/PELS/article/view/1594 <p>This research aims to address the absence of an employee performance assessment system at a company by designing and implementing a system using the Analytical Hierarchy Process (AHP) method. The goal is to support decision-making and evaluate employee productivity, ultimately maintaining high company productivity. The AHP method was utilized to determine the level of productivity of each existing employee, leading to changes in ranking positions for certain operators. The results highlight the effectiveness of the AHP-based assessment system in enhancing employee productivity and its potential implications for decision support in performance evaluation.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The research aims to design and implement an employee performance assessment system using the AHP method.</span></li> <li><span class="">The AHP method was effective in determining the level of productivity of each employee and led to changes in ranking positions for certain operators.</span></li> <li><span class="">The results highlight the potential implications of the AHP-based assessment system for decision support in performance evaluation.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> employee performance assessment, Analytical Hierarchy Process (AHP), decision-making, productivity, performance evaluation</span></p> Doni Prasetyo Inggit Marodiyah Copyright (c) 2024 Doni Prasetyo, Inggit Marodiyah https://creativecommons.org/licenses/by/4.0 2024-02-20 2024-02-20 7 15 20 10.21070/pels.v7i0.1594 Maintenance, OEE, Effectiveness Roving Machine Maintenance Using the Overall Equipment Effectiveness (OEE) Method at PT. Mertex Indoensia https://pels.umsida.ac.id/index.php/PELS/article/view/1593 <p>This study investigates the efficiency of roving machines at PT. Mertex Indonesia, revealing elevated downtime as a critical impediment impacting production flow and leading to decreased Overall Equipment Effectiveness (OEE) levels below industry benchmarks. By employing the OEE framework, we quantified the current state's performance at 66.92%, highlighting substantial room for improvement. Our findings underscore the need for targeted interventions aimed at reducing unplanned stoppages and enhancing equipment reliability, ultimately driving towards compliance with globally recognized best practices.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Elevated downtime significantly impacts production flow and leads to low OEE levels.</span></li> <li><span class="">The current OEE level stands at 66.92% indicating significant potential for improvement.</span></li> <li><span class="">Targeted interventions aim to reduce unplanned stoppages and enhance equipment reliability, aligning with global best practices.</span></li> </ul> <p><span class=""><strong>Keywords: </strong></span><span class="">PT. Mertex Indonesia, </span><span class="">roving machines, </span><span class="">downtime, </span><span class="">Overall Equipment Effectiveness (OEE), </span><span class="">production flow.</span></p> Alfien Ramadhan Syach Putera Inggit Marodiyah Copyright (c) 2024 Alfien Ramadhan Syach Putera; Inggit Marodiyah https://creativecommons.org/licenses/by/4.0 2024-02-20 2024-02-20 7 21 26 10.21070/pels.v7i0.1593 Apllication Of The Moving Average Forecasting Method In Masonry Concrete Sales https://pels.umsida.ac.id/index.php/PELS/article/view/1591 <p>This study aims to create a concrete sales forecasting system using the moving average method to predict sales for the next month in order to determine the amount of production that must be supplied in the next period. The study uses the moving average method which is widely used and has accuracy in forecasting. The results obtained mean error of 32630.95, MAD of 224532, MSE of 80977550000, standard error of 318154, Mape of 12.621% and average forecast of 1960074.0. The study implies that the moving average method is an effective tool for sales forecasting and can be used to make informed decisions about production planning and estimating future growth</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study aims to create a concrete sales forecasting system using the moving average method.</span></li> <li><span class="">The moving average method is an effective tool for sales forecasting and can be used to make informed decisions about production planning and estimating future growth.</span></li> <li><span class="">The study provides statistical measures such as mean error, MAD, MSE, standard error, and MAPE to evaluate the accuracy of the moving average method.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Sales forecasting, Moving average method, Production planning, Accuracy, Informed decisions.</span></p> Mochammad Romi Boy Isma Putra Copyright (c) 2024 Mochammad Romi, Boy Isma Putra https://creativecommons.org/licenses/by/4.0 2024-02-20 2024-02-20 7 27 31 10.21070/pels.v7i0.1591 Accu Scrap Raw Material Inventorycontrol Using the Min- Max Method https://pels.umsida.ac.id/index.php/PELS/article/view/1590 <p>To address stockouts and overstock concerns in Accu scrap processing, this research introduces the application of the Min-Max method to enhance inventory control performance. Implementing this approach on bullion and ingot products resulted in a 33% improvement in inventory management effectiveness. The Min-Max method facilitated the determination of safe stock levels, minimal order quantities, and reorder points, thereby promoting efficient resource allocation and supply chain optimization. Consequently, manufacturers experienced reduced operating expenses while maintaining competitive edge and responsiveness to market dynamics</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The Min-Max method improved inventory management effectiveness by 33%.</span></li> <li><span class="">This approach facilitated the determination of safe stock levels, minimal order quantities, and reorder points.</span></li> <li><span class="">Manufacturers experienced reduced operating expenses while maintaining competitive edge and responsiveness to market dynamics.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Accu scrap processing, Min-Max method, inventory control, supply chain optimization, resource allocation</span></p> Muhammad Nur Faizin Ribangun Bamban Jakaria Copyright (c) 2024 Muhammad Nur Faizin, Ribangun Bamban Jakaria https://creativecommons.org/licenses/by/4.0 2024-02-21 2024-02-21 7 32 36 10.21070/pels.v7i0.1590 Quality Control Analysis Using the Failure Mode and Effect Analysis Method https://pels.umsida.ac.id/index.php/PELS/article/view/1589 <p>This study aimed to investigate critical factors contributing to defective Epodion® rh-Erythropoietin Alfa syringes, specifically focusing on reducing cracks during manufacturing. A Failure Mode and Effect Analysis (FMEA) approach was employed to identify the primary causes of failure, revealing cracking as the predominant issue affecting 43% of defective units. To mitigate this concern, we calculated a Risk Priority Number (RPN) of 162, highlighting the significance of addressing material-related issues. By recommending enhanced quality control measures for raw materials prior to their utilization within the production process, our findings suggest potential improvements in material strength, thereby minimizing product defects</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study aimed to investigate factors contributing to defective Epodion® rh-Erythropoietin Alfa syringes, with a focus on reducing cracks during manufacturing.</span></li> <li><span class="">A Failure Mode and Effect Analysis (FMEA) approach was used to identify the primary causes of failure, revealing cracking as the predominant issue affecting 43% of defective units.</span></li> <li><span class="">Enhanced quality control measures for raw materials prior to their utilization within the production process were recommended to minimize product defects.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Epodion, rh-Erythropoietin Alfa, syringes, FMEA, quality control.</span></p> Muchammad Lukman Hakim Atikha Sidhi Cahyana Copyright (c) 2024 Muchammad Lukman Hakim, Atikha Sidhi Cahyana https://creativecommons.org/licenses/by/4.0 2024-02-21 2024-02-21 7 37 42 10.21070/pels.v7i0.1589 Forecasting Analysis of Raw Material Demand in the Battery Breaker Production Process at PT IMLI https://pels.umsida.ac.id/index.php/PELS/article/view/1588 <p>Accurate demand forecasting is crucial for companies engaged in smelting, such as PT IMLI, to prevent shortages and inventory increases. This research aims to determine the most appropriate forecasting method for raw material demand based on historical data. Three methods were used: moving average with n = 3 and n = 5, and exponential smoothing with α = 0.2. The results showed that the Exponential Smoothing Method with α = 0.2 had the smallest error rate, with a MAPE value of 23%, MAD of 411, and MSE of 293303. This method can be used to optimize demand forecasting for the next period, ensuring that the company has sufficient raw materials for black tin smelting.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Accurate demand forecasting is crucial for companies engaged in smelting to prevent shortages and inventory increases.</span></li> <li><span class="">Three methods were used to determine the most appropriate forecasting method for raw material demand based on historical data: moving average with n = 3 and n = 5, and exponential smoothing with α = 0.2.</span></li> <li><span class="">The Exponential Smoothing Method with α = 0.2 had the smallest error rate, with a MAPE value of 23%, MAD of 411, and MSE of 293303, and can be used to optimize demand forecasting for the next period.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> demand forecasting, smelting, raw materials, historical data, moving average, exponential smoothing.</span></p> Muhammad Hizam Anshori Atikha Sidhi Cahyana Copyright (c) 2024 Muhammad Hizam Anshori, Atikha Sidhi Cahyana https://creativecommons.org/licenses/by/4.0 2024-02-21 2024-02-21 7 43 49 10.21070/pels.v7i0.1588 A Planning Purchasing Policies for Raw Material Welding Wire Using Economic Order Quantity (EOQ) Method to Reduce Overstock https://pels.umsida.ac.id/index.php/PELS/article/view/1587 <p>This study aims to determine the optimal order quantity of K71T welding wire for PT BMI's boiler production process to reduce storage and inventory costs. The Economic Order Quantity (EOQ) method is applied to calculate the optimal amount of material to be ordered in one period. The results show that the total inventory cost using the EOQ method is Rp. 89,060,000,- compared to the company policy of Rp. 290,840,000,-. The optimal number of orders is 407 boxes with a purchase frequency of 4 times per year and a safety stock of 181 boxes. The findings of this study can be used as a reference for other manufacturing companies that face similar procurement challenges to optimize their inventory management and reduce costs.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study determines the optimal order quantity of K71T welding wire, reducing storage and inventory costs.</span></li> <li><span class="">The Economic Order Quantity (EOQ) method is applied, resulting in a total inventory cost of Rp. 89,060,000,- compared to the company policy of Rp. 290,840,000,-.</span></li> <li><span class="">The findings can be used as a reference for other manufacturing companies facing similar procurement challenges to optimize their inventory management and reduce costs.<br></span></li> </ul> <p><span class=""><strong>Keywords:</strong> welding wire, optimal order quantity, inventory management, procurement challenges, manufacturing companies</span></p> Mike Vidiasari Ribangun Bamban Jakaria Copyright (c) 2024 Mike Vidiasari, Ribangun Bamban Jakaria https://creativecommons.org/licenses/by/4.0 2024-02-21 2024-02-21 7 50 54 10.21070/pels.v7i0.1587 A Raw Material Truck’s Queue System Optimization https://pels.umsida.ac.id/index.php/PELS/article/view/1570 <p>We present a field study investigating the impact of raw material supply chain optimization within PT Mekabox International, a producer of high-quality brown papers utilizing recycled sources. To ensure consistent productivity, maintaining supplier interest is crucial due to limited raw material availability. Our findings reveal that expediting unloading processes significantly improves supplier satisfaction beyond pricing alone. Through quantitative analysis using a multi-channel single-phase queuing model, we demonstrate that adding one additional unloading team reduces truck waiting times from 33 to 17 minutes. These improvements enhance operational efficiency, foster stronger relationships with suppliers, and ultimately contribute to sustainable growth in the brown paper industry.</p> <p><strong>Highlight :</strong></p> <ul data-sourcepos="7:1-7:49"> <li data-sourcepos="7:1-7:49">Optimizing the raw material supply chain for brown paper production&nbsp;can be achieved by expediting unloading processes,&nbsp;which improves supplier satisfaction.</li> <li data-sourcepos="8:1-8:34">Quantitative analysis using a queuing model&nbsp;shows that adding one more unloading team can reduce truck waiting times from 33 to 17 minutes.</li> <li data-sourcepos="9:1-9:64">These improvements&nbsp;lead to better operational efficiency,&nbsp;stronger relationships with suppliers,&nbsp;and contribute to sustainable growth in the brown paper industry.</li> </ul> <p><strong>Keywords:</strong> brown paper, raw material, supplier satisfaction, unloading, queuing model</p> Sugeng Prayitno Wiwik Sulistiyowati Copyright (c) 2024 Sugeng Prayitno, Wiwik Sulistiyowati https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 118 124 10.21070/pels.v7i0.1570 FOOD SAFETY RISK ANALYSIS IN MSME PRODUCT SUPPLY CHAIN FROM SCOR, SIX SIGMA AND HACCP INTEGRATION https://pels.umsida.ac.id/index.php/PELS/article/view/1192 <p>MSME baster is a business that is engaged in food, especially meatballs. This MSME baster needs to regulate food<br>processing which aims to avoid chemical microbial contamination and others. Starting from raw materials,<br>processing to consumption by consumers, attention is also given to maintaining product safety. The method used in<br>designing the layout of production facilities at MSME Baster is the integration of Scor, six sigma and Haccp. The<br>Score method was chosen because it performs and decomposes the process, can measure the supply chain objectively<br>based on existing data and can identify improvements that need to be made to create competitive advantage, the Six<br>Sigma method to identify problems in the production process and describe the shortcomings in terms of time, money,<br>customers and opportunities, Haccp can reduce the level of risk to morbidity and mortality associated with the<br>consumption of unsafe food. From the results in the process of making meatballs, there are 3 types that have been<br>described at the determining stage, namely rotten material, material contaminated with fungi, material contaminated<br>with the Pareto diagram, it is known that 39% can cause harm to food is control that comes from the upper limit<br>(UCL) of 0.06271 (LCL) of 0.038 with P (average proportion) of 0.07348363, which means that what happened to the<br>company the average proportion was 0.07 or 7%</p> Nailatul Muflihatin Nafisah Hana Catur Wahyuni Copyright (c) 2024 Nailatul Muflihatin Nafisah, Hana Catur Wahyuni https://creativecommons.org/licenses/by/4.0 2024-03-08 2024-03-08 7 163 173 10.21070/pels.v7i0.1192 Steel Production Process in CV. Tiga Putra Jaya Sejahtra https://pels.umsida.ac.id/index.php/PELS/article/view/1481 <p><em>The construction services business is an activity in the economic, social and cultural fields which has an important role in achieving various targets to support the realization of national development goals. CV. Tiga Putra Jaya Sejahtra is a company engaged in the steel construction industry which provides the manufacture of fences, trellises, balconies, canopies, stair railings, rolling doors, children's toys, folding doors, light steel, galvalume, water towers, iron roofs. The purpose of this The implementation of this activity is to observe the production process of making hollow fences and the result of this activity is to find out how long it takes to make hollow fences, the costs that will be needed and the preparation of the BOM for hollow fences.</em></p> Agus Setyawan Setyawan Indah Apriliana Sari Wulandari Copyright (c) 2024 Agus Setyawan Setyawan, Indah Apriliana Sari Wulandari https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 345 351 10.21070/pels.v7i0.1481 Application of the AHP Method to Assesment of Performance Levels of Production Employees of the Zenbo Division of PT. Mertex Indonesia https://pels.umsida.ac.id/index.php/PELS/article/view/1485 <p><em>In a company, it cannot be separated from the role of human resources who work in it. The quality of human resources is one of the factors that influences the level of company productivity. Therefore, there is a need for an existing employee performance assessment system to determine the level of productivity of each existing employee. The problems that exist at PT. Mertex Indonesia is the absence of an assessment system which results in no knowledge of the performance level of its employees. Based on these problems, this research designed an employee assessment system using the Analytical Hierarchy Process (AHP) method which is used to support decision making for employees which refers to the employee's level of productivity.</em><em>&nbsp;This research aims to create decision support in evaluating the performance of company employees to be able to maintain the high value of company productivity. </em><em>The results obtained from weighting using AHP are changes in ranking where operator 2 and operator 3 exchange ranking positions.</em></p> <p>&nbsp;</p> Doni Prasetyo Prasetyo Inggit Marodiyah Copyright (c) 2024 Doni Prasetyo Prasetyo, Inggit Marodiyah https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 362 368 10.21070/pels.v7i0.1485 Raw Material Control Production of Crumble Type Chicken Animal Feed at PT Japfa Comfeed Indonesia, Tbk. https://pels.umsida.ac.id/index.php/PELS/article/view/1492 <p><em>. Raw materials are tangible items used in production which can be obtained from natural sources or </em></p> <p><em>purchased from suppliers or companies that produce raw materials for the industry that uses them. MRP (Material Requirement Planning) According to Haizer and Render (2005: 160) the material requirement planning method is a bound demand technique that uses materials, inventory, estimated receipts, and master production schedules to determine the amount of material. Inventory control is a very important managerial function for the Company, material requirements planning is a planning system that focuses on the amount and time of finished goods requested </em></p> <p><em>which then determines the derivative demand for raw materials. From inventory control, it can be seen from the MRP </em></p> <p><em>calculation how much raw material PPIC must order, so that there is no shortage of raw materials or no inventory at all.And the results of MRP for one year or 12 periods can be known how much raw material must be provided for production in a year that will be data.</em></p> Erie Fadma Noer Fitriana Wijatmiko Tedjo Sukmono Copyright (c) 2024 Erie Fadma Noer Fitriana Wijatmiko, Tedjo Sukmono https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 400 408 10.21070/pels.v7i0.1492 Analysis of Potential Risks Food Safety and Halal Standards in Food Industry (Case Study of Wafer Production Process) https://pels.umsida.ac.id/index.php/PELS/article/view/1496 <p><em>One of the factors that determines the competitiveness of a food product is the quality assurance of food safety and halal. Consuming unsafe food can endanger the health and lives of consumers. Until now, the distribution of unsafe and non-halal food is still a problem for Indonesia. This research aims to determine the implementation of food safety and halal systems in companies. This research was carried out by conducting interviews with employees. Alternative strategies and risk controls are selected based on 5W + 1H. The research results show that the efforts made by the company to improve food safety and halal in the wafer manufacturing process are the implementation of the HACCP system and the Halal Product Guarantee System. The results of observations on the implementation of HACCP show that companies must always monitor the operation of the HACCP system in the production area to improve food quality and safety.</em></p> Nurria Peppi Yuwana Hana Catur Wahyuni Copyright (c) 2024 Nurria Peppi Yuwana, Hana Catur Wahyuni https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 409 421 10.21070/pels.v7i0.1496 Implementation of the AHP Method in Determining the Completion of Logistics Warehouse Stock Buildup Using the Expert Choice Application https://pels.umsida.ac.id/index.php/PELS/article/view/1497 <p><em>The development of logistics services that are increasing has caused an increase in customers of PT. Astrans Putra Logistik also increased, this resulted in the logistics warehouse capacity experiencing a buildup of goods that almost filled the warehouse capacity which made operational activities disrupted, and many complaints from customers. Resolution to overcome this warehouse problem needs to be done so that the company’s operational efficiency is not disrupted and warehouse stock capacity becomes better. This study aims to find out the best solution of warehouse problems that occur through a decision making support system design using the AHP method assisted by the use of the Expert Choice 11 application. In making this decision, 4 stages are carried out, namely Intelligence, Design, Choice, and Analysis of Assessment Result which in the process have a 4 kinds of criteria and 4 kinds of alternative solutions. From the calculation of the AHP method assisted by the use of the Expert Choice 11 application, the weight of each criterion was obtained, namely Increased Operational Efficiency getting a weight of 0,259, Number of Items that can be Accommodated getting a weight of 0,086, Company Income getting a weight of 0,495, and Company Expense getting a weight of 0,160. From the calculation of alternative settlements, it was also found that The Addition of a New Departure Fleet got a weight of 0,385, The Construction of Branch Goods Warehouse got a weight of 0,279, Upgrading Small Trucks to Large Trucks got a weight of 0,187, and The Application of a Pre-order system for customers got a weight of 0,149.</em></p> Sofie Amalia Afifah Atikha Sidhi Cahyana Copyright (c) 2024 Sofie Amalia Afifah, Atikha Sidhi Cahyana https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 422 431 10.21070/pels.v7i0.1497 Analysis of Raw Materials and Production Process of Broiler Feed Crumble Type B-BR 1 MGB https://pels.umsida.ac.id/index.php/PELS/article/view/1500 <p><em>PT Japfa Comfeed Indonesia, Tbk is a company engaged in animal feed which provides various types, one of which is crumble. Crumble is a granular food processed by the process of grinding and crushing pellets. In addition to pellets, crumble is preferred and more suitable for poultry farms with mechanized feed bins. Crumble-shaped feed products are an activity that combines many existing production factors with the aim of producing a product, which is beneficial to consumers.</em></p> Fikri Maulana Khabibi Copyright (c) 2024 Fikri Maulana Khabibi https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 438 445 10.21070/pels.v7i0.1500 Analysis of the Pellet and Concentrate Chicken Animal Feed Production Process at PT. Japfa Comfeed Indonesia Gedangan Sidoarjo Unit https://pels.umsida.ac.id/index.php/PELS/article/view/1499 <p><em> <span class="fontstyle0">This article reviews the production process of pellet and concentrate animal feed using the work map<br>method, both production process flow maps and production operation process maps. This research aims to carry out<br>an analysis of the production process flow and find out the causes of any obstacles in the production process at PT<br>Japfa Comfeed Indonesia Tbk Sidoarjo Unit, so that we can get a clear picture of the early stage process of producing<br>pellet and concentrate animal feed. This type of research includes case study research because this research takes a<br>company as a case study, namely PT. Japfa Comfeed Indonesia, Tbk Gedangan Unit. The data collection method uses<br>a field method, namely a data collection method that is carried out by conducting direct observations of the production process in the field, both by observation, interviews and documentation. The results are an analysis of the pellet and concentrate type animal feed production process at PT. Japfa Comfeed Indonesia Gedangan Sidoarjo Unit.<br></span><br></em></p> Rio Septyawan Indah Apriliana Sari Wulandari Copyright (c) 2024 Rio Septyawan, Indah Apriliana Sari Wulandari https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 454 465 10.21070/pels.v7i0.1499 Total Productive Maintenance Analysis to Increase Machine Productivity https://pels.umsida.ac.id/index.php/PELS/article/view/1530 <p>The food manufacturing industry, especially dry and instant noodles, continues to grow rapidly, especially export market opportunities. Companies are required to increase productivity to meet domestic and international market demand. The role of machine performance is very vital in the production process, therefore the machine must always be in optimal condition. The high downtime caused by frequent breakdowns of production machines has a big impact on the productivity that the company wants to achieve. This activity aims to measure the effectiveness of the machines used at PT. Surya Pratista Hutama and measuring the efficiency of production machines and equipment. Each company can find out the performance of the machines used by calculating the level of equipment performance using the Total Productive Maintenance (TPM) method. The method used to measure TPM performance is the Overall Equipment Effectiveness (OEE) method. The use of this method is intended to provide equipment performance results as well as accurate calculations to determine the performance of the machine used. The results of this activity show that the Overall Equipment Effectiveness (OEE) value still has an effectiveness level below standard. The main factors that influence low OEE values are reduced speed losses, idling minor stopage losses, defects in process and breakdown losses. Therefore, preventive maintenance measures are needed to minimize the occurrence of machine damage.</p> <p><strong>Highlights:</strong></p> <ul> <li>Rapid growth in the food manufacturing industry demands increased productivity.</li> <li>Machine performance is crucial for maintaining optimal production processes.</li> <li>Total Productive Maintenance (TPM) and Overall Equipment Effectiveness (OEE) methods help measure and improve machine efficiency.</li> </ul> <p><strong>Keywords: </strong>Maintenance, Total Productive Maintenance, Overall Equipment Effectiveness, Six Big Losses.</p> Mohammad Andi Rasyid Tedjo Sukmono Copyright (c) 2024 Mohammad Andi Rasyid, Tedjo Sukmono https://creativecommons.org/licenses/by/4.0 2024-03-17 2024-03-17 7 571 580 10.21070/pels.v7i0.1530 Strategy for Optimizing Online Sales of Vehicle Shampoo Products at CV. Automova Detailing Indonesia https://pels.umsida.ac.id/index.php/PELS/article/view/1548 <p>At this time, many companies are starting to carry out various marketing strategies to promote the products <br>or services they offer. One way is online. Many applications or websites are used for online promotions. One of them is the TikTok application. This application has recently become popular among all circles. So it is not surprising that many sellers have started selling and promoting their products or services through this application. Not only because it is widely used but also easily accessible to everyone. In fact, there are many plus points or advantages if you shop online. One of them is saving time and energy.</p> <p><strong>Highlights:</strong></p> <ul> <li>Online promotions via TikTok are gaining popularity due to widespread usage and accessibility.</li> <li>Shopping online saves time and energy by eliminating the need to visit physical stores.</li> <li>Utilizing platforms like TikTok for marketing offers a dynamic and engaging way to reach potential customers.</li> </ul> <p><strong>Keywords: </strong>Online Shop, Utility, Dynamic System, Simulation</p> Eva Zulfiatur Rahmah Moch Devan Rangga M Fandi Syaro Vivia Nailur Rahmayanti Atikha Sidhi Cahyana Copyright (c) 2024 Eva Zulfiatur Rahmah, Moch Devan Rangga, M Fandi Syaro , Vivia Nailur Rahmayanti, Atikha Sidhi Cahyana https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 605 608 10.21070/pels.v7i0.1548 Comparison of Forecasting Techniques Moving Average and Double Exponential Smoothing in Sugar Production for Enhanced Maintenance Preparedness Ahead of Milling Season https://pels.umsida.ac.id/index.php/PELS/article/view/1558 <p>Sugar as a commodity has a very vital role, not only being a basic need for Indonesian society, but also an inseparable element in various industrial sectors. The aim of this research is to compare sugar production forecasting systems by comparing two methods using moving averages and double exponential smoothing (holt's method). Forecasting is the process of projecting or predicting future events with a structured planning approach. Forecasting in sugar production is needed to find out whether the next month can meet the target or not. The amount of sugar production is used as a reference for carrying out maintenance which is carried out before the arrival of the milling season. The research results show that both forecasting methods have their respective strengths and weaknesses. The results of this research showed that the double exponential smoothing method (Holt's method) provided better values ​​than the moving average.</p> <p><strong>Highlights:</strong></p> <ul> <li>Sugar production forecasting aids in maintenance planning.</li> <li>Comparison between moving averages and double exponential smoothing methods enhances predictive accuracy.</li> <li>The study reveals the superiority of Holt's method in sugar production forecasting.</li> </ul> <p><strong>Keywords: </strong>Forecasting,&nbsp;Moving Average,&nbsp;Double Exponential Smoothing, Sugar Production</p> Muhammad Faisal Andreyanto Hana Catur Wahyuni Copyright (c) 2024 Muhammad Faisal Andreyanto, Hana Catur Wahyuni https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 620 627 10.21070/pels.v7i0.1558 Application of the Analytical Hierarchy Process (AHP) Method in Determining the Best Raw Material Supplier using Expert Choice Software https://pels.umsida.ac.id/index.php/PELS/article/view/1560 <p>Supplier selection is one of the most important things in procurement activities for goods or services for a company. Suppliers are individual entities or companies that provide or sell raw materials to other entities, be they individuals or companies, to be processed into goods or services that are ready for use. As business partners, suppliers have a very significant role in ensuring the availability of supplies of goods required by the company. Therefore, PT. Sinergi Gula Nusantara (PG.Kremboong) needs to carry out careful and accurate observations of suppliers to ensure effective cooperation. The aim of this research is to evaluate suppliers based on the company's criteria, including quality, price, quantity of raw material supply and plantation area. In the Analytical Hierarchy Process (AHP) method, each criterion in the alternative assessment factors will be compared with each other, then produce a priority value output. This process forms an assessment system for each supplier. Through the calculation process using the AHP method with the help of the Expert Choice 11 application, weight values were obtained for each criterion, namely Quality with a weight of 0.565, Price with a weight of 0.257, Quantity of Raw Material Supply with a weight of 0.095 and Garden area with a weight of 0.083. Meanwhile, the best supplier is farmer 5 with a weight of 0.293, farmer 4 with a weight of 0.227, farmer 1 with a weight of 0.173, farmer 3 with a weight of 0.164, and farmer 2 with a weight of 0.143.</p> <p><strong>Highlights:&nbsp;</strong></p> <ul> <li> <p>Comprehensive Evaluation: AHP allows PT. Sinergi Gula Nusantara to assess suppliers holistically.</p> </li> <li> <p>Weighted Criteria: Weight values prioritize key factors like quality, price, quantity, and plantation area.</p> </li> <li> <p>Effective Selection: With AHP, PT. Sinergi Gula Nusantara can efficiently identify top suppliers for reliable partnerships.</p> </li> </ul> <p><strong>Keywords: </strong>Supplier Selection, Analytical Hierarchy Process, Expert Choice</p> <ul> <li>&nbsp;</li> </ul> Mochamad Iqbal Latif Hana Catur Wahyuning Copyright (c) 2024 Mochamad Iqbal Latif, Hana Catur Wahyuning https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 628 636 10.21070/pels.v7i0.1560 Control of Raw Materials for Boiler Coffee Maker Machine at PT. Weiss Tech Using MRP Method https://pels.umsida.ac.id/index.php/PELS/article/view/1557 <p>Raw materials are tangible items used in production used by companies to make their product. Raw materials must be ordered according to the estimated time and quantity to ensure the production process is timely and timely. raw materials and products will be the inventory of the companies to make sure customer’s demand and needs is fulfilled. The calculation of raw materials could be analysed using MRP or Material Requirement Planningmethod. PT. Weiss Tech runs in the Engineering and Manufacturing field and produces a variety of machine needs and demands, Boiler Coffee Maker is one of this company’s products. This research will discover the accuracy of MRP method calculation compared to the real-life situation. This research uses the literature review method,interview and direct observation as the sources of information and data. Through this research, found the results of Gross Requirement, Inventory on Hand, Net Requirement, and Planned Order Releases calculation from the Boiler Coffe Maker machine in five months of direct observation.</p> <p><strong>Highlights:</strong></p> <ul> <li>Essential Raw Material Management: Key for timely production and meeting customer needs.</li> <li>MRP Efficiency: PT. Weiss Tech uses MRP for precise raw material calculations.</li> <li>Accuracy Assessment: Research evaluates MRP accuracy through literature, interviews, and observation.</li> </ul> <p><strong>Keywords: </strong>Raw Materials, MRP, Inventory Control</p> Muhammad Rizky Ardana Boy Isma Putra Copyright (c) 2024 Muhammad Rizky Ardana, Boy Isma Putra https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 696 707 10.21070/pels.v7i0.1557 Steel Processing Production Process At Cv. Tiga Karya Persada Indonesia https://pels.umsida.ac.id/index.php/PELS/article/view/1515 <p>The production process is a way, method and technique for creating or increasing the usefulness of a good or service using existing resources (labor, machines, materials, funds). CV. Tiga Karya Persada Indonesia is a company that focuses on the steel processing industry sector. This company's specialization includes making various products, such as fences, canopies, stairs, and building structures such as warehouses and housing. The purpose of carrying out this activity is to observe the production process of making fences and analyze the production process using a production process map (Operation Process Chart) and Bill of Materials. Based on field observations using the production process map at CV. It can be seen from Tiga Karya Persada Indonesia that making 1 fence takes a total of 795 minutes, consisting of 6 operational processes with a total time of 630 minutes and there are 8 inspection processes with a total time of 165 minutes.</p> Rizky Yulianto Boy Isma Putra Copyright (c) 2024 Rizky Yulianto, Boy Isma Putra https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 505 509 10.21070/pels.v7i0.1515 Axle Pully Making Process For Conveyor Belt St40 Iron https://pels.umsida.ac.id/index.php/PELS/article/view/1559 <p><strong><em>Abstract</em></strong> <em>The process of manufacturing axles and pulleys for St40 iron belt conveyors is a crucial stage in the development of components capable of meeting the demands of severe industrial environments. This article provides a comprehensive overview of the set of steps required to create a precise and reliable axle and pully. From the technical design to the final finishing stage, each step is explained in detail to ensure optimal quality and performance. Material selection, cutting, forming, precision machining, welding, heat treatment, and protective spraying are integral components of this manufacturing process. By deeply understanding this process, it is expected that the belt conveyor industry can produce high-quality products that can withstand extreme operational conditions</em></p> <p><strong><em>&nbsp;</em></strong></p> Mukhammad Imam Baihaqi Prantasi Harmi Tjhajajanti Copyright (c) 2024 Mukhammad Imam Baihaqi, Prantasi Harmi Tjhajajanti https://creativecommons.org/licenses/by/4.0 2024-02-20 2024-02-20 7 82 90 10.21070/pels.v7i0.1559 Periodic Maintenance Analysis of Diesel Motor Generator Set 900 kVA Power as Backup Energy https://pels.umsida.ac.id/index.php/PELS/article/view/1597 <p>This study aims to evaluate the efficiency of generators as backup power sources through daily, monthly, and annual routine maintenance analysis to improve their reliability, availability, and operational health. The study was conducted in compliance with regulations related to electrical maintenance of aviation facilities and power plants. The methods used to determine the efficiency of generators include Mean Time Between Failures (MTBF), Actual Operating Time (AOT), Specified Operating Time (SOT), Probability, and Availability. The results show that the availability and average compliance of each generator can be determined through these calculations. The implication of this study is that it provides a framework for evaluating the efficiency and reliability of generators, which can be used to improve the performance of backup power sources.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Regular maintenance analysis is crucial for improving the efficiency and reliability of generators.</span></li> <li><span class="">Mean Time Between Failures (MTBF) and Actual Operating Time (AOT) are important metrics for evaluating the performance of generators.</span></li> <li><span class="">The study provides a framework for determining the availability and compliance of each generator, which can be used to improve their operational health.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> generators, backup power sources, maintenance analysis, reliability, availability.</span></p> Rois Nur Rofiq Salam Edi Widodo Copyright (c) 2024 Rois Nur Rofiq Salam, Edi Widodo https://creativecommons.org/licenses/by/4.0 2024-02-20 2024-02-20 7 1 9 10.21070/pels.v7i0.1597 Analysis of Work Accidents in the Lathe Workshop CV. XX Using the Job Safety Analysis Method with the Failure Mode and Effect Analysis Approach. https://pels.umsida.ac.id/index.php/PELS/article/view/1584 <p>This research aims to determine the level of risk and potential for work accidents in manufacturing processes that use heavy equipment such as lathes, which can cause accidents and disrupt production. The method used is job safety analysis (JSA) and suggestions for the complete use of Personal Protective Equipment (PPE) for workers in accordance with production equipment to reduce the risk of work accidents. The results show that being hit by a spark during the welding process has a failure mode severity level value, and being exposed to a gram when lathe has the highest value of failure mode occurrence and effect analysis. The failure mode detection and effect analysis value is the lowest due to limited PPE. The implication of this research is to provide a comprehensive understanding of the potential risks and safety measures that can be implemented to minimize work accidents in manufacturing processes.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Job safety analysis (JSA) and Personal Protective Equipment (PPE) are used to reduce the risk of work accidents in manufacturing processes that use heavy equipment.</span></li> <li><span class="">Being hit by a spark during the welding process has a failure mode severity level value, and being exposed to a gram when lathe has the highest value of failure mode occurrence and effect analysis.</span></li> <li><span class="">The research provides a comprehensive understanding of the potential risks and safety measures that can be implemented to minimize work accidents in manufacturing processes.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> manufacturing processes, heavy equipment, work accidents, job safety analysis, personal protective equipment.</span></p> Muhammad Tauhid Himam Edi Widodo Copyright (c) 2024 Muhammad Tauhid Himam, Edi Widodo https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 62 69 10.21070/pels.v7i0.1584 Use of the CLARKE JU6H-NL30 Diesel Pump in Building Fire Suppression Systems https://pels.umsida.ac.id/index.php/PELS/article/view/1576 <p>This study investigates the suitability of the Clarke JU6H-30NL diesel pump engine as a supplementary solution for fire extinguishing systems in a banking facility during August–September 2023. Employing practical fieldwork methods, we analyzed the specifications, operational procedures, and benefits versus drawbacks of diesel pumps compared to electrical alternatives. Observational techniques were utilized to collect real-time data onsite. Our findings reveal that diesel pumps offer significant advantages such as uninterrupted operation during power failures, elevated water pressures, lower maintenance costs due to more accessible spare parts, and enhanced overall building safety and resilience against fires. These insights suggest that incorporating diesel pumps into existing fire protection strategies could provide reliable backup solutions, particularly in critical infrastructure settings where continuous operations are crucial.</p> <p><strong>highlight:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study analyzed the specifications, operational procedures, and benefits versus drawbacks of diesel pumps compared to electrical alternatives.</span></li> <li><span class="">Observational techniques were utilized to collect real-time data onsite.</span></li> <li><span class="">Diesel pumps offer significant advantages such as uninterrupted operation during power failures, elevated water pressures, and lower maintenance costs due to more accessible spare parts.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Clarke JU6H-30NL diesel pump engine, fire extinguishing systems, banking facility, uninterrupted operation, building safety.</span></p> Mohamad Affan Rahmadin Iswanto Iswanto Copyright (c) 2024 Mohamad Affan Rahmadin, Iswanto Iswanto https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 99 104 10.21070/pels.v7i0.1576 The Procedure for Measuring Fuel Pressure on an Injection Motorbike Uses a Pressure Gauge https://pels.umsida.ac.id/index.php/PELS/article/view/1574 <p>This study aimed to design and test a fuel pump pressure tester for injection motors to measure fuel pressure and determine whether the fuel pump is working properly. The qualitative method was used in the design process, which included creating design concepts, observation, and data processing. A literature review was conducted to strengthen the research results. The functional test in the final process showed that the tool could work well and provide information in measuring fuel pressure from the fuel pump. The implication of this study is that the fuel pump pressure tester can be used to prevent engine failure and improve engine performance.</p> <p><strong>Highlight:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Qualitative method used in the design process</span></li> <li><span class="">Literature review conducted to strengthen research results</span></li> <li><span class="">Functional test showed tool can measure fuel pressure accurately</span></li> </ul> <p><span class=""><strong>Keywords:</strong> fuel pump pressure tester, injection motors, fuel pressure, engine failure, engine performance.</span></p> Diyas Robikh Arafat Rachmad Firdaus Copyright (c) 2024 Diyas Robikh Arafat, Rachmad Firdaus https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 105 110 10.21070/pels.v7i0.1574 Repair and Maintenance of Ceramic Mould Pressing Machine https://pels.umsida.ac.id/index.php/PELS/article/view/1571 <p>This article presents the best practices for the maintenance and repair of ceramic pressing machines, which are crucial components of the ceramic production process. The goal is to ensure smooth operation, prevent unexpected breakdowns, and maintain production efficiency and quality. Regular maintenance, including cleaning, checking of critical components, and replacement of worn or damaged parts, is essential. Repairs should be carried out by trained and experienced technicians who can detect and fix problems before they become serious. Proper training for maintenance staff and machine operators is also important to ensure efficient machine operation and minimize production downtime. The results show that following these best practices can significantly improve the performance and longevity of ceramic pressing machines, leading to increased productivity and profitability for ceramic manufacturers.</p> <p><strong>highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Regular maintenance is essential to ensure smooth operation and prevent unexpected breakdowns of ceramic pressing machines.</span></li> <li><span class="">Repairs should be carried out by trained and experienced technicians to detect and fix problems before they become serious.</span></li> <li><span class="">Proper training for maintenance staff and machine operators is important to ensure efficient machine operation and minimize production downtime.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> ceramic pressing machines, maintenance, repair, production efficiency, quality.</span></p> Bagas Putra Mulyadi Mulyadi Copyright (c) 2024 Bagas Putra, Mulyadi Mulyadi https://creativecommons.org/licenses/by/4.0 2024-02-22 2024-02-22 7 111 117 10.21070/pels.v7i0.1571 Analyisis Of Boiler Reliability Maintenance System With Availability Ratio At PT. XXX https://pels.umsida.ac.id/index.php/PELS/article/view/1569 <p>This study investigates a food manufacturing firm's efforts to enhance operational efficiency by optimizing its maintenance strategy and spare parts management within the context of noodle production. The research focuses on reducing prolonged machine downtimes caused by boiler malfunctions, which negatively impact production targets. A novel approach combining total minimum downtime calculations and a hybrid corrective-preventive maintenance methodology has been proposed. To bolster this initiative, an efficient spare parts procurement scheme was implemented. Results demonstrate a substantial reduction in unplanned downtime following implementation, thereby improving overall productivity and profitability. Implications highlight the potential for widespread application across similar industries seeking to minimize disruptions while maximizing equipment lifetimes.</p> <p><strong>highlight :</strong></p> <ul data-sourcepos="2:1-4:63"> <li data-sourcepos="2:1-2:56">Reduced downtime through improved boiler maintenance.</li> <li data-sourcepos="3:1-3:69">Hybrid corrective-preventive maintenance for efficient operations.</li> <li data-sourcepos="4:1-4:63">Optimized spare parts procurement for enhanced productivity.</li> </ul> <p><strong>Keywords:</strong> noodle production, boiler maintenance, downtime reduction, spare parts management, hybrid maintenance.</p> Luthfi Frans Setiawan Edi Widodo Copyright (c) 2024 Luthfi Frans Setiawan, Edi Widodo https://creativecommons.org/licenses/by/4.0 2024-02-23 2024-02-23 7 125 131 10.21070/pels.v7i0.1569 Printing Machine Maintenance at PT Multi Anugerah Lestari Texindo https://pels.umsida.ac.id/index.php/PELS/article/view/1568 <p>This qualitative study investigates the environmental and social sustainability practices at PT Anugrah Lestari Texindo, a prominent PVC producer in Mojokerto, Indonesia. By employing analytical techniques, descriptions, and primary data through interviews, observations, and problem formulations, we examine this firm's production of flexible PVC materials, including synthetic leather, flooring, and colorants. Our findings reveal a commitment to sustainable development while balancing economic growth, highlighting the company's efforts towards waste reduction, energy efficiency, and community engagement. Implications from our research underscore the potential for further enhancing environmentally conscious manufacturing practices within the Indonesian plastics industry.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study examines the sustainable practices of a prominent PVC producer in Indonesia.</span></li> <li><span class="">The company shows a commitment to sustainable development while balancing economic growth.</span></li> <li><span class="">The research highlights the potential for enhancing environmentally conscious manufacturing practices in the Indonesian plastics industry.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Qualitative study, Environmental sustainability, Social sustainability, PVC producer, Indonesia.</span></p> Satrio Fajar Rahmananto Prantasi Harmi Tjahjanti Copyright (c) 2024 Satrio Fajar Rahmananto, Prantasi Harmi Tjahjanti https://creativecommons.org/licenses/by/4.0 2024-02-23 2024-02-23 7 132 137 10.21070/pels.v7i0.1568 Analysis of Variation in Iron Coating Rubber for Upper Punch Moulds https://pels.umsida.ac.id/index.php/PELS/article/view/1567 <p>This study investigates the evolution of ceramic mold design and manufacturing processes, focusing on the role of punches in shaping ceramics through injection molding techniques. Key findings reveal diverse punch types—isostatic, pressure rubber, and exhaust punches—tailored to meet varying market demands. By employing ASTM 1045 high-performance 45 steel, we explore the impact of these punches on product quality and efficiency. Qualitative research methods, comprising literature review, observations, and interviews, were utilized to analyze the production process, formulation of ceramic bodies, and variations within ceramic molding tools and procedures. Our work contributes valuable insights into the advancements of injection molding technology, particularly in the context of rapid growth in polymeric materials' usage and their potential for mass production via fast cycle times and high quantities.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Diverse punch types tailored to meet market demands, including isostatic, pressure rubber, and exhaust punches</span></li> <li><span class="">Utilization of ASTM 1045 high-performance 45 steel for improved product quality and efficiency</span></li> <li><span class="">Employment of qualitative research methods, such as literature reviews, observations, and interviews, to examine the production process, ceramic body formation, and tool variations</span></li> </ul> <p><span class=""><strong>Keywords:</strong>&nbsp;ceramic mold, punches, injection molding, ASTM 1045 steel, diversified punches, qualitative analysis</span></p> Rizky Wahyu Iswantoi Iswantoi Copyright (c) 2024 Rizky Wahyu, Iswantoi Iswantoi https://creativecommons.org/licenses/by/4.0 2024-02-23 2024-02-23 7 138 143 10.21070/pels.v7i0.1567 Analysis of The Causes of Pressure Drop in Heat Exchanger E-204 PT. ALP Petro Industry https://pels.umsida.ac.id/index.php/PELS/article/view/1566 <p><span class="">This study investigates the impact of gasket leaks and plate blockages on the efficiency of a Plate Heat Exchanger (PHE) and proposes remedial actions to mitigate these issues. The research focuses on the maintenance process involving dismantling, cleaning, and gasket replacements to address wear and dirt deposits. Results indicate that gasket blockages and leaks significantly reduce fluid flow and operational efficiency. By implementing periodic inspections, gasket replacements, and mechanical and chemical cleaning, a notable improvement in PHE efficiency is achieved, highlighting the importance of regular preventive maintenance for optimal performance and cost-effectiveness in industrial operations.</span></p> <p><strong><span class="">Highlight :</span></strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Regular maintenance involving dismantling, cleaning, and gasket replacements is crucial for addressing wear and dirt deposits in Plate Heat Exchangers (PHEs).</span></li> <li><span class="">Gasket blockages and leaks have a significant negative impact on fluid flow and operational efficiency in PHEs.</span></li> <li><span class="">Implementing periodic inspections, gasket replacements, and mechanical/chemical cleaning can notably improve PHE efficiency, emphasizing the importance of preventive maintenance for optimal performance and cost-effectiveness in industrial operations.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Plate Heat Exchanger, Maintenance,</span> Efficiency, Gasket Leaks, Preventive Maintenance</p> Ardhi Shefta Fernanda Rachmat Firdaus Copyright (c) 2024 Ardhi Shefta Fernanda, Rachmat Firdaus https://creativecommons.org/licenses/by/4.0 2024-02-23 2024-02-23 7 144 150 10.21070/pels.v7i0.1566 Centrifugal Pump Maintenance at PT UG MANDIRI https://pels.umsida.ac.id/index.php/PELS/article/view/1565 <p>Centrifugal pumps are widely used in industrial and municipal water affairs, but as the equipment ages or the fluid is abnormal, some mechanical and fluid failures will occur. These failure forms include loose fault, imbalance fault, misalignment fault, bearing fault, cavitation, water hammer, abnormal flow passage, etc. To address these issues, this study proposes a predictive and preventative maintenance (PPM) program that incorporates four areas and six parameters that define a pump's performance. The program uses smart sensors and digital Internet of Things (IoT) systems to monitor the real-time running status of centrifugal pumps and perform signal acquisition, analysis, feature extraction, and fault diagnosis. The study also conducted experiments to simulate various failures of centrifugal pumps and verified the effectiveness of the PPM program. The results show that the program can effectively perform the intelligent operation and maintenance of pump units, which can improve the reliability and efficiency of centrifugal pumps.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">A predictive and preventative maintenance (PPM) program for centrifugal pumps incorporates four areas and six parameters that define a pump's performance.</span></li> <li><span class="">The program uses smart sensors and digital Internet of Things (IoT) systems to monitor the real-time running status of centrifugal pumps and perform signal acquisition, analysis, feature extraction, and fault diagnosis.</span></li> <li><span class="">The PPM program can effectively perform the intelligent operation and maintenance of pump units, which can improve the reliability and efficiency of centrifugal pumps.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> centrifugal pumps, predictive and preventative maintenance, smart sensors, IoT systems, fault diagnosis.</span></p> Wahyu Hikmatiarun Yahya Mulyadi Mulyadi Copyright (c) 2024 Wahyu Hikmatiarun Yahya, Mulyadi Mulyadi https://creativecommons.org/licenses/by/4.0 2024-02-23 2024-02-23 7 151 155 10.21070/pels.v7i0.1565 Analysis of the Causes of Crooked Cane Carrier Shafts at the Kremboong Sugar Factory https://pels.umsida.ac.id/index.php/PELS/article/view/1561 <div class="border-borderMain/60 dark:border-borderMainDark/80 divide-borderMain/60 dark:divide-borderMainDark/80 ring-borderMain dark:ring-borderMainDark bg-transparent"> <div class="relative default font-sans text-base text-textMain dark:text-textMainDark selection:bg-superDuper selection:text-textMain"> <div class="min-w-0 break-words [word-break:break-word]"> <div dir="auto">This study investigates the problem of damage to the Cane Carrier shaft due to overload in sugar mills. The aim is to understand the exact cause of the bend of the Cane Carrier due to overload and find solutions to prevent it. The study found that overload and lack of regular maintenance were major factors in the breakdown of Cane Carrier shafts. To resolve this issue, the study recommends a change in load management, implementation of stricter preventive maintenance, and the implementation of regular overload monitoring. These measures can reduce damage to the Cane Carrier shaft and improve operational efficiency. The research makes an important contribution to the understanding and handling of the problem of damage to Cane Carrier shafts due to overload, and is relevant for the sugar industry and in the field of mechanical engineering.</div> <div dir="auto"><strong>Highlight :</strong></div> <div dir="auto"> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Overload and lack of regular maintenance are major factors in the breakdown of Cane Carrier shafts.</span></li> <li><span class="">Change in load management, implementation of stricter preventive maintenance, and the implementation of regular overload monitoring can reduce damage to the Cane Carrier shaft and improve operational efficiency.</span></li> <li><span class="">The research makes an important contribution to the understanding and handling of the problem of damage to Cane Carrier shafts due to overload, and is relevant for the sugar industry and in the field of mechanical engineering</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Cane Carrier shaft, overload, regular maintenance, sugar mills, mechanical engineering.</span></p> </div> </div> </div> </div> Rangga Bayu Puspawarna A’rasy Fahruddin Copyright (c) 2024 Rangga Bayu Puspawarna, A’rasy Fahruddin https://creativecommons.org/licenses/by/4.0 2024-02-23 2024-02-23 7 156 162 10.21070/pels.v7i0.1561 Identify Product Defects In The Injection Molding Process https://pels.umsida.ac.id/index.php/PELS/article/view/1448 <p>Injection molding is a method of processing thermoplastic polymer seeds that are inserted into a hopper into<br>a barrel then the material is pushed by a screw to enter the mold (mold). However, products produced by injection<br>molding machines are sometimes still found defects in the product. Common defects include: Short shot, Flash, Sink<br>mark, Flow mark, Black spot, Warpage and Colour streaks. And the most causative factors are materials that do not<br>comply with production procedures, lack of checking on the control panel, mold design errors (mold).<br>Keywords - Injection molding; defects; mold</p> Sulung Wibawansyah Sulung Wibawansyah Copyright (c) 2024 Sulung Wibawansyah Sulung Wibawansyah https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 223 226 10.21070/pels.v7i0.1448 Manufacturing of Roll Conveyors https://pels.umsida.ac.id/index.php/PELS/article/view/1470 <p>Field work practice is a form of educational and vocational implementation that is participated in by students. Practical work aims to prepare students to become productive people and can work directly in their respective fields. Students can also experience the production atmosphere and can help deal with several problems experienced by professional engineering in factories. Conveyor systems can be said to be part of the equipment mechanics that transport materials from one place to another. This system is useful when goods need to be transported and moved from one place to another. Its existence makes the process easier, faster and more comfortable. In various industries, conveyors are very important. This system is designed to withstand heavy workloads and extreme weather conditions. The ability to adjust certain angles to help move materials. Design is divided into two, namely planning and conceptualizing. Planning this research focused on designing the conveyor for the can and plastic bottle waste sorting machine, then the consumer needs for the conveyor for the can and plastic bottle waste sorting machine were arranged as follows: a) The conveyor is easy to operate. b) Does not endanger the operator. c) Easy maintenance. d) Energy efficient conveyor from carrying out practical field work at CV. According to Agung Widodo's source, it can be concluded as follows: Industrial Automation or Industrial Automation is basically technology related to the application of mechanical, electronic and computer-based information systems to operate and control production. Key words: conveyor, roll, as roll.</p> Ion Sheren Dheril Herwanto Ali Akbar Copyright (c) 2024 Ion Sheren Dheril Herwanto, Ali Akbar https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 300 302 10.21070/pels.v7i0.1470 Repairing Extruder Components on Extrusion Machines https://pels.umsida.ac.id/index.php/PELS/article/view/1471 <p>Practical work is a form of educational and vocational organization that is participated in by students so that students can work directly in the world of business, industry or fabrication. Practical work aims to prepare students to become productive people and be able to work directly in their respective fields. Students can also experience the production atmosphere experienced by professional engineering in a factory. This research process requires several materials and equipment as equipment in the design process as well as several methods. data collection and problem formulation in the form of morphological design. The method for repairing the screw extruder is re-poking the screw thread area which was proposed by the customer technician who said that the screw thread area was starting to wear out so it needed to be rejuvenated. Maintenance Preventive Maintenance. Re-priming or rejuvenating the threaded part because the threaded part has started to wear out. For example, in scheduling, for screw components until now there has been no regular maintenance or replacement to overcome damage. After the time of re-positioning the screw enters the turning stage to smooth the surface before the unevenness of the re-positioning or CV. Sumber Agung Widodo is a company that has complete manufacturing equipment that can produce various kinds of spare parts from various kinds of production machines. Various problems that often occur have an impact on the ongoing production process. Some of the causes include not only material factors, but human resource factors also influence production quality</p> Wiky Anjaya Arwiyono Prantasi Harmi Tjahjanti Copyright (c) 2024 Wiky Anjaya Arwiyono, Prantasi Harmi Tjahjanti https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 303 306 10.21070/pels.v7i0.1471 Analysis of Hydraulic Axle Leak in Toothpaste Mixing Machine at PT. Miswak Utama https://pels.umsida.ac.id/index.php/PELS/article/view/1473 <p>Field Work Practice is one of the courses contained in the Mechanical Engineering Study Program that learns about how we do work and adapt to the industrial world at this time. Mixer is one of the mixing tools in the emulsion system so that it produces a uniform or homogeneous dispersion. The problem of hydraulic axle leakage of the mixing machine that often occurs and becomes a serious problem that can cause the engine to not operate, which requires maintenance/repair for a long time, There is an oil leak in the hydraulic piston system on the mixing machine which causes the piston to not be able to rise and turn perfectly which causes the tank lid of the mixing machine to not be able to hit the tightness so that it delays the production process. To prevent damage to the mixing machine which directly results in smooth production, maintenance and periodic checks are needed. Because the mixing machine itself plays an important role in the process of making toothpaste, therefore if the mixing machine experiences Damage will cause harm to the company itself</p> <p><em>(</em><strong><em>Keyword</em></strong><em> : Mixing Enggine, Hidrolist oil,seal)</em></p> Rizki Arif Maulana Sahroni Copyright (c) 2024 Rizki Arif Maulana Sahroni https://creativecommons.org/licenses/by/4.0 2024-03-13 2024-03-13 7 307 309 10.21070/pels.v7i0.1473 Analysis of the Causes of Crooked Cane Carrier Shafts at the Kremboong Sugar Factory https://pels.umsida.ac.id/index.php/PELS/article/view/1477 <p><em>Practical work is a form of education and vocational implementation that is followed by students so that students can work directly in the business world as well as industry or fabrication. Practical work aims to prepare students to become productive human beings and can immediately work in accordance with their respective fields, students can also feel the atmosphere of production and can help deal with some problems- problems experienced by Engineering professionals inside the factory. Therefore, in welding, knowledge must accompany practice, in more detail it can be said that the design of building construction and machines with welded joints, must also be planned about welding methods. This method of inspection, welding material, and type of weld to be used, based on the function of the building parts or machines designed. Based on the definition of DIN (Deutch Industrie Normen) Galvanized Welded Broken Products is the best way to assemble or connect constructions and products made from iron. This welding method is specifically performed for galvanized materials. The iron welding process requires special preparation and skills. Based on the results of fieldwork practices that have been carried out in CV. Sumber Agung Widodo, The process of making panel tables is carried out into several stages, namely the hollow iron cutting, 45- degree galvanized angle cutting, iron plate cutting, elbow iron cutting, splicing by welding, frame painting, and mounting a series of panels to the finished panel table. The materials used are hollow iron, iron plate, elbow iron, iron paint, wheels. The tools used are ac current welding machines, grinders and elbow rulers. Stage</em></p> M.Rizky Faisal Dermawan Wasiana Iswanto Iswanto Copyright (c) 2024 M.Rizky Faisal Dermawan Wasiana, Iswanto Iswanto https://creativecommons.org/licenses/by/4.0 2024-03-14 2024-03-14 7 335 338 10.21070/pels.v7i0.1477 Analysis of the Causes of the Reduction in Heat Exchanger E301 Pressure https://pels.umsida.ac.id/index.php/PELS/article/view/1528 <p>The production process at PT ALP Petro Industry often occurs when the tubes in the Heat Exchanger are blocked to heat the used oil which will then be processed further. Before passing through the heat exchanger, the used oil has an oil filter, then the oil passes through a small tube which has been heated with steam, where over time the tube will become clogged due to dirt. Over time, these deposits accumulate and a blockage occurs in the tube exchanger area. If a blockage occurs, the pressure in the tube will automatically experience a pressure drop due to deposits in the Heat Exchanger tube. Therefore, this problem requires an analysis of what can minimize the occurrence of pressure drops.</p> <p><strong>Highlights:</strong></p> <ul> <li>Tube blockages disrupt production efficiency.</li> <li>Pressure drop due to blockages affects system performance.</li> <li>Analysis needed for prevention measures.</li> </ul> <p><strong>Keywords: </strong>Production Process, Blockage, Exchangere</p> Faris Ferdiansyah Rachmat Firdaus Copyright (c) 2024 Faris Ferdiansyah, Rachmat Firdaus https://creativecommons.org/licenses/by/4.0 2024-03-15 2024-03-15 7 555 562 10.21070/pels.v7i0.1528 Analysis Hydraulic System of Injection Molding Machine https://pels.umsida.ac.id/index.php/PELS/article/view/1529 <p>The hydraulic system is a system that works using oil fluid pressure to become mechanical work. This research was conducted in order to obtain information related to the workings of the hydraulic system on the injection molding machine of PT. Mitra Mulia Makmur Sidoarjo. From data collection during industrial practices, the way the hydraulic system works is a tank that functions as a reservoir for oil before going to the hydraulic pump which is filtered first using an oil filter, the hydraulic pump acts as a converter of energy from the engine into pressurized energy by pressing hydraulic fluid to enter into the system, the transfer of power is transferred from one point to another using a liquid fluid conductor in the form of compressed oil. Then this liquid fluid is increased in pressure by a pump driven by a motor and passed through the pipes leading to the hydraulic working cylinder and turning it into high pressure press power.</p> <p><strong>Highlights:</strong></p> <ul> <li>Hydraulic system overview: Utilizes oil fluid pressure for mechanical work.</li> <li>Functionality in injection molding: Key role in PT. Mitra Mulia Makmur's operations.</li> <li>Power transmission mechanism: Pump-driven fluid transfer for high-pressure press power.</li> </ul> <p><strong><em>Keywords: </em></strong><em>Hydraulic System, Injection Molding Machine, System Works</em></p> Ghulam Muhammad Abdu Sari Rachmat Firdaus Copyright (c) 2024 Ghulam Muhammad Abdu Sari, Rachmat Firdaus https://creativecommons.org/licenses/by/4.0 2024-03-17 2024-03-17 7 563 570 10.21070/pels.v7i0.1529 Implementation of Pertamax Shipping Safety as Reserve Fuel for Sending the Survey Boat Rinca to Kupang https://pels.umsida.ac.id/index.php/PELS/article/view/1532 <p>This research aims to find out that safety during shipping is one of the things that is prioritized when using sea transportation. It's not just land transportation that must be considered. However, if an individual wants to use a sea vehicle, shipping safety must also be taken into account. The purpose of this writing is to analyze the implementation of shipping safety in sending RINCA survey boats from the port of Perak Surabaya to Kupang, East Nusa Tenggara in supporting maritime security recommended by the K3 team of PT. Trisetia Cipta Persada. This article was written using qualitative methods. The data used is primary data and secondary data. The results of the research carried out are that attention must be paid to the use of surveyt boats and fuel safety during shipping. The variables used in the research include implementing safety when using a survey boat to support maritime security, including always being careful when driving, not smoking, paying attention to the safety of fuel packaging, ship maintenance, paying attention to the weather, and so on.</p> <p><strong>Highlights:</strong></p> <ul> <li>Importance of Shipping Safety: Priority in sea transportation.</li> <li>Analysis of Shipping Safety Implementation: Focus on survey boat usage and fuel safety.</li> <li>Key Variables in Research: Safe driving practices, fuel packaging, ship maintenance, weather awareness.</li> </ul> <p><strong>Keywords:</strong><strong>&nbsp;</strong>Surveyboat, Fuel, Safety</p> Amar Alfariqi Ali Akbar Copyright (c) 2024 Amar Alfariqi, Ali Akbar https://creativecommons.org/licenses/by/4.0 2024-03-17 2024-03-17 7 581 585 10.21070/pels.v7i0.1532 Identification of Boiler Performance Decline at PT. Chemical Industry Tonggorejo https://pels.umsida.ac.id/index.php/PELS/article/view/1538 <p>A steam boiler is a device that has the function of producing steam, has two important<br>parts, namely a heating kitchen where heating is obtained from burning fuel in the combustion<br>chamber, and a boiler proper, which is a device that converts pure water into hot steam. The aim<br>of this research is to identify the factors causing the decline in boiler performance at PT. Chemical<br>Industry Tonggorejo and to find out what actions were taken to overcome the problem of decreasing<br>boiler performance. The method used in conducting this research was the observation approach<br>method. The results of this research were the factors causing the decline in boiler performance at<br>PT. Chemical Industry Tonggorejo is a lack of filling water, fuel quality, the actions taken to deal<br>with the problem are optimizing the amount of air in the fuel combustion process and controlling<br>corrosion in the boiler fire pipe.</p> <p><strong>Highlights:</strong></p> <ul> <li> <p>Steam Boiler Functionality: A steam boiler produces steam through fuel combustion and water conversion.</p> </li> <li> <p>Identifying Performance Factors: Lack of water filling and fuel quality are identified as factors causing boiler performance decline.</p> </li> <li> <p>Action Plan: Optimization of air in combustion and corrosion control in boiler pipes are implemented to address the performance issue.</p> </li> </ul> <p><strong>Keywords: </strong>Boiler, Corrosion, Performance</p> Adinda Maydana Ali Akbar Copyright (c) 2024 Adinda Maydana, Ali Akbar https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 592 594 10.21070/pels.v7i0.1538 Welding and Maintenance Factory Work Tools https://pels.umsida.ac.id/index.php/PELS/article/view/1539 <p>The welding process is widely used to join metals. However, there are still many welders who have not<br>mastered welding techniques that comply with the standards set by welding associations. This research was<br>conducted to find out how the welding process and maintenance of factory work tools works. Research begins by identifying machine damage or factory equipment damage. Once the damage is known, repairs are then carried out on the damaged machine. The results of research regarding welding and maintenance of factory work equipment show that damaged factory equipment must receive regular inspection and maintenance. Factors that cause damage to factory work equipment are human error, lack of diligent cleaning of industrial work tools, and can also be caused by the age of industrial machines.</p> <p><strong>Highlights:</strong></p> <ul> <li>Welding techniques compliance with standards is crucial for welders' mastery.</li> <li>Regular inspection and maintenance are essential for damaged factory equipment.</li> <li>Factors causing damage include human error, inadequate cleaning, and machine age.</li> </ul> <p><strong>Keywords:</strong> Damage, Welding, Maintenance</p> Muchamad Reysa Pahlewi Suharto Ali Akbar Copyright (c) 2024 Muchamad Reysa Pahlewi Suharto, Ali Akbar https://creativecommons.org/licenses/by/4.0 2024-03-18 2024-03-18 7 595 599 10.21070/pels.v7i0.1539 Damage Analysis of P-702 Centrifugal Pump A, B, C at PT. ALP Petro Industry https://pels.umsida.ac.id/index.php/PELS/article/view/1522 <p>A pump is a device that can move fluid from one place to another through a piping medium by adding energy to the fluid being moved and this occurs continuously. Centrifugal pumps, as a type of pump that is often found in industry, work on the principle of rotation of the impeller as a fluid transfer element driven by a prime mover. Sudden drops in pump performance and instability in operation often become serious problems and disrupt overall system performance. Vibration analysis is the key to successful predictive maintenance because the condition of rotating equipment in operation can be seen in the vibration patterns (symptoms). Vibration can be triggered by cavitation and corrosion in the pump. Continuous operation of the pump in a cavitation state for a long period of time causes the surface of the channel walls around the flow to be eaten away, resulting in holes.</p> <p><strong>Highlights:</strong></p> <ul> <li>Centrifugal Pump Operation: Impeller rotation transfers fluid.</li> <li>Vibration Analysis Significance: Essential for predictive maintenance.</li> <li>Cavitation and Corrosion Effects: Trigger vibration, erode surfaces.</li> </ul> <p><strong>Keywords: </strong>Centrifugal Pump, Corrosion, Vibration</p> Keigant Abdullah Barafi A’rasy Fahruddin Copyright (c) 2024 Keigant Abdullah Barafi, A’rasy Fahruddin https://creativecommons.org/licenses/by/4.0 2024-03-19 2024-03-19 7 637 643 10.21070/pels.v7i0.1522 GearBox Wear Analysis on Milling Machine https://pels.umsida.ac.id/index.php/PELS/article/view/1535 <p>PT. Sinergi Gula Nusantara PG. Kremboong is a company engaged in sugar cane processing. To meet production targets, the machine must work for a full day and always be in good condition. Continuous use of the machine, considering the age of the machine, can cause the machine to wear out and cause a lot of trouble. The gearbox is an important component in transmitting power from the motor. Combustion motorbikes and electric motorbikes have very different characteristics. Electric motorbikes have superior torque even at low rpm. Therefore, the use of a gearbox to stabilize the torque of an electric motor requires the use of a gearbox. The gearbox on an electric motorbike has a heavier load because of its large torque. So the potential for wear on the gearbox will be higher. Apart from that, lubrication in the gearbox also has a big influence on gearbox wear. Wear is a phenomenon of material loss caused by the friction of two or more objects. The wear and tear of the gearbox itself is also influenced by several things such as the quality of the lubricant, the quality of the material, and the roughness of the surfaces of the objects that rub together.</p> <p><strong>Highlights:&nbsp;</strong></p> <ul> <li>Continuous operation vital for production targets.</li> <li>Electric motorbike gearboxes need frequent maintenance.</li> <li>Quality lubrication crucial for gearbox longevity.</li> </ul> <p><strong>Keywords:</strong> Gearbox, Grind, Sugar Factory</p> Muhammad Dwi Andika Yudistira A’rasy Fahruddin Copyright (c) 2024 Muhammad Dwi Andika Yudistira, A’rasy Fahruddin https://creativecommons.org/licenses/by/4.0 2024-03-19 2024-03-19 7 651 657 10.21070/pels.v7i0.1535 Maintenance Main Cooling Water System https://pels.umsida.ac.id/index.php/PELS/article/view/1544 <p>Maintenance of Main Cooling Water Pump (MCWP) in Gas and Steam Power Plant plays a crucial role <br>in maintaining performance and operational sustainability. This research highlights the importance of a holistic <br>maintenance approach, including routine inspections, performance monitoring, and preventive maintenance, to quickly identify and address potential issues. Safety and compliance with industry standards are the primary focus to protect personnel and assets. In addition to operational benefits, this maintenance also supports energy efficiency and environmental sustainability, aiding Gas and Steam Power Plantin proactively responding to future challenges.&nbsp;</p> <p><strong>Highlights:</strong></p> <ul> <li>Holistic maintenance approach vital for MCWP performance.</li> <li>Safety compliance crucial for personnel and asset protection.</li> <li>Maintenance enhances efficiency and sustainability efforts.</li> </ul> <p><strong>Keywords:</strong> Maintenance, Main Cooling Water Pump, Energy Efficiency</p> Raihan Maulana Zulfikar Mulyadi Mulyadi Copyright (c) 2024 Raihan Maulana Zulfikar, Mulyadi Mulyadi https://creativecommons.org/licenses/by/4.0 2024-03-19 2024-03-19 7 665 676 10.21070/pels.v7i0.1544 Analysis of Boiler Maintenance System at PT. SPM https://pels.umsida.ac.id/index.php/PELS/article/view/1554 <p>Boiler is a closed vessel made of steel that functions to produce steam and is used for heating, turbine drive <br>and so on. Good boiler use and maintenance will make boiler efficiency higher and save operational costs in general. Boiler condition at PT. SPM Perangin-angin has decreased performance and if left continuously will experience damage which will eventually cause downtime losses. Problems that arise due to this downtime include production delays, loss of effective time to produce so that it affects company productivity. The results showed that the lowest availability ratio value occurred in August 2023, this was due to a high total downtime of 4610 minutes due to trouble and waiting time of 1920 minutes for recovery. Performance efficiency ratio of the amount of fuel used is high at 35 Kg/cm3 due to recovery from the beginning. The rate of quality of the machine shows good results, this is because there is no reject that occurs.</p> <p><strong>Highlights:</strong></p> <ul> <li>Maintenance crucial for boiler efficiency and cost savings.</li> <li>Downtime leads to production delays and financial losses.</li> <li>Performance metrics indicate operational reliability and effectiveness.</li> </ul> <p><strong>Keywords : </strong>Boiler, Maintenance, Operating Time</p> Rendy Rakhmad Fakhrizi Mulyadi Mulyadi Copyright (c) 2024 Rendy Rakhmad Fakhrizi, Mulyadi Mulyadi https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 691 695 10.21070/pels.v7i0.1554 Corrosion Rate Analysis of Steam Boiler Superheater https://pels.umsida.ac.id/index.php/PELS/article/view/1513 <p>Superheaters play an important role in converting saturated steam to the point of superheating. The condition of the superheater needs to be considered, if there is rust it will reduce the performance of the superheater in heating steam to the point of superheat. Rust / corrosion is the enemy of dangerous metals. Corrosion is defined as a deterioration in the quality of metals due to electrochemical reactions with their environment In corrosion events, metals undergo oxidation, while oxygen (air) undergoes reduction. The corrosion event itself is an electrochemical process, which is a process (change / chemical reaction) that involves electricity. Certain parts of the metal act as the negative pole (negative electrode, anode), while the other part acts as the positive pole (positive electrode, cathode). Electrons flow from the anode to the cathode, resulting in corrosion. By calculating the corrosion rate of superheaters with material A-213 T22 can be a consideration for using materials that are more resistant to rust or become a consideration in estimating repair time.</p> Satria Agung Wibisono A’rasy Fahruddin Copyright (c) 2024 Satria Agung Wibisono , A’rasy Fahruddin https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 494 497 10.21070/pels.v7i0.1513 Analysis of The Causes of Defects In Products in Cup Filing Machines https://pels.umsida.ac.id/index.php/PELS/article/view/1514 <p>Drinking water is good water and can be in natural form or processed like sea water for desalination, it<br>must meet the drinking water standards set. Drinking water standards are divided into ordinary water, mineral water, natural mineral water and bottled water. AMDK is drinking water that has been treated, packaged and is safe for direct consumption in accordance with industrial standards in Indonesia. Manufacturing machines including glass, bottle and gallon filling machines often experience product defects outside the planned schedule and machine damage causes production to stop, thereby reducing machine performance and suggestions and input for improvements so that it can run as desired.</p> Moch Miqdar Efendi Prantasi Harmi Tjahjanti Copyright (c) 2024 Moch Miqdar Efendi Efendi, Prantasi Harmi Tjahjanti https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 498 504 10.21070/pels.v7i0.1514 Analysis of the Causes of Turbine Power Efficiency Decreases https://pels.umsida.ac.id/index.php/PELS/article/view/1517 <p>Abstract. The steam turbine as the prime mover converts steam energy into kinetic energy and kinetic energy is further <br>converted into mechanical energy in the form of rotation of the shaft turbine. Turbines as generator drives so as to <br>produce electric power that can be used in various industrial fields. The energy required is large and the continuous <br>use of the turbine must operate with sufficient stability for a long time. Turbine efficiency will decrease due to several <br>factors such as errors during operation and duration of maintenance. Based on data obtained from PT. Synergy of <br>Gula Nusantara PG. Kremboong turbine power efficiency will decrease because there are several factors that cause <br>corrosion, erosion and wear and tear on turbine engine components. Steam for turbine drive produced by steam <br>boilers containing dirt or inappropriate water ph can cause scale on the turbine so that the turbine cannot rotate <br>optimally.</p> Ricky Kurniawan Ali Akbar Copyright (c) 2024 Ricky Kurniawan, Ali Akbar https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 523 528 10.21070/pels.v7i0.1517 Handling Analysis of Short Shot Defects From Stretch Blow Molding Machine On 330 Ml Bottle Case Study At PT. Tirtamas Lestari (Amdk Total) https://pels.umsida.ac.id/index.php/PELS/article/view/1519 <p>Stretch blow molding is a manufacturing method used in making hollow plastic products using polymer plastic with rotational symmetry. This method, which has been popular since the 1970s, is usually used to make PET bottle products for soft drinks and mineral water to liquid detergent. In the production process of 330 ml plastic water bottles using a stretch blow machine molding with a pneumatic system, making products usingThis machine has factors that can affect the quality of the bottles produced. Size deviation (even distribution of bottle thickness and bottle slope) not in accordance with specifications resulting in bottles with white shoulders and flanged (shrinkage). The aim of this research is to optimize the settings stretch blow molding machine parameters to produce good quality 330 ml plastic water bottle product. The variables (predictors) chosen are: preblow (bar), preform temperature (ºC), and P1 point (mm).</p> Wistyo Nugroho Nugroho A’rasy Fahruddin Copyright (c) 2024 Wistyo Nugroho Nugroho, A’rasy Fahruddin https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 529 539 10.21070/pels.v7i0.1519 Use Of The Yamaha F100B Outboard Engine As a Populsion On The Rinca and Bawean Survey Boats https://pels.umsida.ac.id/index.php/PELS/article/view/1520 <p>The aim of this research is to determine the use of the Yamaha F100B outboard engine as a propulsion for the Rinca and Bawean survey boats. The research was carried out within one month, namely August to September 2023. This research was carried out using practical field work methods. The variables in this research were the specification,work process, fuel efficiency system,&nbsp; superiority, and environmental impact. The method in this research uses the observation method, namely the method of collecting data by recording directly while in the field. The research results show that the use of a Yamaha F100B outboard motor as a propulsion is able to provide adequate thrust for the survey vessel, with efficient fuel consumption. In the context of survey vessels, the reliability and speed of these motors are important factors in supporting successful marine survey operations.</p> Rizky Dwi Aldiantofas Ali Akbar Copyright (c) 2024 Rizky Dwi Aldiantofas, Ali Akbar https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 510 515 10.21070/pels.v7i0.1520 Damage Analysis Of P-702 Centrifugal Pump A, B, C PT. Alp Petro Industry https://pels.umsida.ac.id/index.php/PELS/article/view/1521 <p>A pump is a device that can move fluid from one place to another through a piping medium by adding energy to the fluid being moved and this occurs continuously. Centrifugal pumps, as a type of pump that is often found in industry, work on the principle of rotation of the impeller as a fluid transfer element driven by a prime mover. Sudden drops in pump performance and instability in operation often become serious problems and disrupt overall system performance. Vibration analysis is the key to successful predictive maintenance because the condition of rotating equipment in operation can be seen in the vibration patterns (symptoms). Vibration can be triggered by cavitation and corrosion in the pump. Continuous operation of the pump in a cavitation state for a long period of time causes the surface of the channel walls around the flow to be eaten away, resulting in holes.</p> Keigen Abdullah Barafi A’rasy Fahruddin Copyright (c) 2024 Keigen Abdullah Barafi, A’rasy Fahruddin https://creativecommons.org/licenses/by/4.0 2024-03-20 2024-03-20 7 516 522 10.21070/pels.v7i0.1521