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All Journal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Tibuana : Journal of Applied Industrial Engineering JURNAL PEMASARAN KOMPETITIF Nusantara Science and Technology Proceedings International Journal of Eco-Innovation in Science and Engineering (IJEISE) Jurnal Pengbdian Teknik Mesin
Isna Nugraha
Universitas Pembangunan Nasional Veteran Jawa Timur
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Journal : Nusantara Science and Technology Proceedings

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Determining the Shortest Route of Distribution to Reduce Environmental Emissions Using Saving Matrix and Nearest Neighbor Methods Farida Pulansari; Isna Nugraha; Sinta Dewi
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

One of the problems with the Vehicle Routing Problem (VRP) is the problem of fulfilling customer requests according to the location that must be supplied from depots that have limited vehicle capacity. This also happened to Distributor PT. XYZ is located in Lamongan. Every day the distributor of PT. XYZ distributes fertilizer to several cities in East Java, one of which is in the city of Blitar. The problem that happened to the distributor of PT. XYZ does not yet have an optimal distribution route, resulting in delays in the delivery process. Optimization of distribution routes can be done by finding the shortest route in fertilizer distribution in the Blitar area. With the saving matrix and nearest neighbor method, the best route arrangement can shorten the distance and product delivery time. The final result will be savings in distribution costs because it can reduce fuel consumption for fertilizer trucks, reducing the company's variable costs and reducing environmental emissions.
Optimal Pressure Vessel Project Schedule Planning with Critical Path Method (CPM) at PT. XYZ Yustina Ngatilah; Caecilia Pujiastuti; Isna Nugraha; Dwi Qomariah Arifin
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

Project scheduling is one element of planning that provides various information for time efficiency to complete a project. The success of a project starts from the planning and preparation of the correct and systematic stages. Every company must try to complete the work on time as scheduled to avoid various losses that arise. This research aims to determine the activities that are classified as critical in the production of pressure vessels belonging to one of the leading companies in Indonesia engaged in natural gas processing, which PT is carrying out. XYZ. This study also compares the costs incurred to complete the pressure vessel project with a normal and accelerated duration of work. The method used is the Critical Path Method (CPM) and Microsoft Project software. CPM is a network analysis that aims to optimize the total project cost by reducing completion time. The use of the CPM method can save time in completing various stages of a project. The initial project duration is 952 working hours or 119 working days. It can be accelerated to 884 working hours or 111.25 working days, 7.75 days faster than the initial schedule. There are 24 critical activities, and the labor cost that must be spent is IDR 72,034,400.00 under normal conditions, while the labor cost that must be spent for the acceleration condition is IDR 76,626,400.00.
Determining Distribution Vehicle Routes to Reduce Distribution Costs Using Sequential Insertion Method at PT. XYZ Sumiati; Sinta Dewi; Isna Nugraha
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

VRP is concerned with determining routes for problems involving more than one vehicle with a certain capacity to serve consumers with their respective requests. Route determination is one of the important factors in delivering products to consumers. Determining the optimal distribution route can minimize distance, shorten product delivery time and save transportation costs. PT. XYZ is a company engaged in the distribution of consumer goods. Problems that are happening at PT. XYZ is a product distribution problem where the number of vehicles is limited. The number of customers and the distance from the depot to the customer and from one customer to another is far away. Therefore, it is necessary to determine distribution routes, especially in transportation problems, to save time, distance, and distribution costs. The objectives to be achieved from research at PT. XYZ is to determine the product distribution route using the Sequential Insertion method. Based on the data processing results, the route Sequential Insertion method can serve customers in 5 routes with a total distance of 227.8 km, a total travel time of 15.9 hours, and a total distribution cost of IDR 145,792/week. The travel distance savings are 28.20 km, and the percentage of distribution cost savings is 11%, or the distribution cost savings are IDR 866,304/year. So, the Sequential Insertion method can be applied to determine the optimal distribution route to produce a minimum distribution cost
Analysis of Workload Measurement Using Cardiovascular Load (CVL) and Bourdon Wiersma at PT. XYZ Sunardi; Mochamad Tutuk Safirin; Isna Nugraha; Nico Aliffian Vollytanio Putra
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

Many companies still do not prioritize occupational health and safety, causing a large workload to be borne both physically and mentally. It affects the workers ' fatigue and will affect performance. Work fatigue is a symptom associated with decreased work efficiency, skills, boredom, and increased anxiety. PT. XYZ is a manufacturing company, which produce refractory stone from clay as the main raw material. The production process uses human-machine power, lack of rest time, overtime to achieve production targets, repetitive and standing work, and a long-distance between milling stations and raw material processing. A few people only carry out the final part of the process. With this problem, this study uses Cardiovascular Load and Bourdon Wiersma to slow down worker fatigue and is expected to help measure worker fatigue to provide a solution in slowing down worker fatigue. The number of samples used as many as 20 workers. The results obtained from the analysis of this work system are shift one and shift two have different levels of fatigue, namely shift one high category and shift two low categories, as well as the mental load shift one is low while shift two is high, therefore shift one needs to be the improvement in his physical load while shift two needs to improve his mental load. Corrective actions that can be taken in shift one are to increase the rest time from 45 minutes to 60 minutes, implement a worker rolling system, and improve workplace conditions to make it more ergonomic. Corrective actions that can be taken in shift two are providing music, arranging work shifts such as rolling shifts, and adding rest periods.
Production Machine Effectiveness Analysis Using Overall Equipment Effectiveness (OEE) and Root Cause Analysis Joumil Aidil Saifuddin; Isna Nugraha; Yekti Condro Winursito
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

A manufacturing company in production activities requires machinery and equipment. The machine has reliability, namely the opportunity for the machine to operate according to its function in a certain period. Company XYZ is a company located in Sidoarjo and is engaged in manufacturing with the main product being White Crystal Sugar (GKP). Company XYZ has several machines or equipment that operate 24 hours throughout the milling season with a series and parallel system so that the probability of damage to machine components is quite high. One of the machines that are often damaged is the boiler engine. Based on the problems that exist in this company, it is necessary to evaluate the engine performance at the boiler station during the milling period. The methods used in this research are Overall Equipment Effectiveness (OEE) and Root Cause Analysis. The OEE value obtained by the machine at the boiler station at Company XYZ for machines that have a value above the ideal standard of 85%, namely bagasse carrier IV, bagasse carrier III, bagasse carrier II, belt conveyor, reclaimer I, and reclaimer II. Meanwhile for machines that have a value below the ideal standard of 85%, namely boilers KCC of 77.98%, boilers FCB of 81.73%, and bagasse carrier I of 82.37%. This condition shows that production is considered reasonable, but still shows that there is a large room for the company to make developments.
Welding Quality Control Using Statistical Quality Control (SQC) Methods and Failure Mode Effect Analysis (FMEA) at PT. XYZ Rr. Rochmoeljati; Isna Nugraha; Nafa Artha Cahaya Mulia
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2707

Abstract

PT XYZ is the largest shipbuilding company in Indonesia. The company's products are shipbuilding and ship design based on consumer demand. In the production process of the BRS W-303 ship, defects were still found during welding, such as incomplete penetration and slag inclusion. The purpose of this study was to determine the percentage of the most dominant defects and the factors causing defects and to provide suggestions for improving the quality of welding. The methods used are Statistical Quality Control (SQC) and Failure Mode Effect Analysis (FMEA). SQC tools are check sheets, stratification, scatter diagrams, attribute control charts, and cause and effect diagrams. Then continue the FMEA analysis based on the cause-and-effect diagram for proposed improvements. Based on the results of Statistical Quality Control (SQC) research, it is known that the most dominant ship welding defects are incomplete penetration (32.81%) and slag inclusion (23.26%). Based on the results of research on Failure Mode Effect Analysis (FMEA) it is known that the root cause of the highest problem with RPN 288 is the determination of the root gap is too small or narrow. Recommendations for improvement that can be proposed are to ensure that the welder must read and understand the WPS used to weld correctly.
Total Productive Maintenance Analysis Using OEE and FMEA Method at PT. XYZ Phosphoric Acid Factory Joumil Aidil Saifuddin; Isna Nugraha; Yekti Condro Winursito
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2711

Abstract

The smooth production process in the company is influenced by several factors, one of which is the machine. Machine maintenance is something that needs to be done by the company because it has an important role in the smooth production process. PT XYZ is a company engaged in the manufacture of fertilizers and chemicals. Phosphoric Acid Plant, production department III A, PT XYZ, in its production process, has 193 machines that are used to process phosphate rock. Based on a survey related to problems that often occur at the Phosphoric Acid Plant, it can be seen that three machines have the highest breakdown time, namely 1st Filter (Fil-2321), 1st Vacuum Pump (C-2323), and Digester (R-2302 B). From these problems, machine maintenance analysis was carried out using Total Productive Maintenance with Overall Equipment Effectiveness and Failure Mode Effect and Analysis methods.
Analysis of the Implementation Life Cycle Assessment (LCA) Method for Identification of Environmental Assessment in Liquid Waste Production Tofu at PT. XYZ Farida Pulansari; Isna Nugraha
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2712

Abstract

XYZ is a company engaged in the food industry. The resulting product is tofu. The process of making tofu produces liquid waste from the tofu industry which is disposed of without being treated properly and can cause environmental pollution. The purpose of this research is to help reduce and solve the problems faced by the tofu industry in terms of tofu waste management using the LCA method. In the LCA method, the data will be processed using OpenLCA software. Based on the results of the study, the results of the LCA method were BOD values of 957 mg/l and COD of 1.437 mg/l. This value can pollute the aquatic environment around the tofu production area of PT. XYZ.
Quality Control to Incompatibility of Midsole Products with ISO 9001:2008 Analysis Isna Nugraha; Restu Hikmah Ayu Murti; Tasya Ambar Aimia; Muhammad Abdus Salam Jawwad; Bekti Nugrahadi; Nur Aini Fauziyah; Reva Edra Nugraha
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2717

Abstract

The midsole is an inseparable component of the shoe. For this reason, midsole production must be fulfilled so that the needs of shoe manufacturers to produce shoes can be met according to the target. Midsole Jepara factory is one of the work units of PT. X is a company that processes Compound raw materials into Midsole as its main product. ISO 9001:2008 is an international standard for quality management systems. ISO 9001:2008 establishes requirements and recommendations for the design and assessment of a quality management system. It is expected that the products produced from an international quality management system, will be of good quality (standard). Based on this, this study will discuss the quality assurance contained in a manufacturing company to prevent the absence of things that cause product defects. In analyzing the implementation of ISO 9001:2008 used is the analysis of P control maps, fishbone diagrams, and Pareto diagrams. In controlling the midsole products it produces, PT X applies a policy regarding product quality standards, namely using the PDCA (Plan Do Check Action) quality standard.
Quality Control Analysis of Steel Plates Products at PT. ABC Using Seven Tools and Kaizen Method Sumiati; Isna Nugraha
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2731

Abstract

Quality is the overall set of characteristics of a product or service in satisfying part or all of the needs of consumers. Consumers as product users always compare in choosing or using products so this situation results in the role of quality being increasingly important. The problems faced by PT. ABC is the defect rate that occurs in the production of High Strength Steel Plates, namely in January - September 2017 the defect rate of the High Strength Steel Plates type is 3.28%. This of course greatly affects the efforts of PT. ABC to increase production results or at least reduce the level of defects that occur. The purpose of this research is to find out the factors that cause defects, analyze product defects and analyze the causes for continuous improvement. This can be done using the Kaizen method. This technique uses the basic tools of Seven Tools. The results showed that based on data processing using Seven Tools, it can be seen that the number of defects from the type of defect on the steel plate High Strength Steel Plates during 9 months was wavy defects with a percentage of 26.36%, wrong cut with a percentage of 27.61%, not symmetrical with a percentage of 25.62%, and deep scale with a percentage of 20.39%. The results of the analysis that the cause of wrong cutting defects are caused by human factors that are not careful, lack of concentration, and lack of skill. To overcome this problem, Kaizen or 5S analysis was made. Improvements have been made to the production of High Strength Steel Plates for a period of 9 months, from 3.28% to 2.60% there was a decrease in defects or 0.68%.
Co-Authors Amelia Ramadhani Ardysti Ario Adityawarman Aussie Amalia Bekti Nugrahadi Caecilia Pujiastuti Dwi Qomariah Arifin Dwi Sukma Donoriyanto Farida Pulansari Farida Pulansari Firza Ramadhan Gadis Elvira Amanda Hafid Syaifullah Handy Natan Permana Jafni Fara Zahirah Joumil Aidil Saifuddin Kabul Fadilah Mega Cattleya PA Islami MT Safirin Muhammad Abdus Salam Jawwad Muhammad Naufal Nazhif Muhammad Riza Pahlevi Murti, Restu Hikmah Ayu Nafa Artha Cahaya Mulia Nico Aliffian Vollytanio Putra Nisa', Syadzadhiya Qothrunada Zakiyayasin Novembrianto, Rizka Nugraha, Reva Edra Nur Aini Fauziyah Nur Aini Fauziyah Nur Rahmawati Praditya Sigit Ardisty Sitogasa Raden Kokoh Haryo Putro Ramadana Esa Kuswara Rizqi Novita Sari Rr. Rochmoeljati Rusindianto Rusindiyanto Shaffa Arindra Tuffahati Sinta Dewi Sinyi Retno Mayasi Sumiati Sumiati Sunardi Sunardi Tasya Ambar Aimia Thineza Ardea Pramesti Yekti Condro Winursito Yekti Condro Winursito Yekti Condro Winursito Yekti Condro Winursito Yekti Condro Winursito Yustina Ngatilah