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Strengthening screw shaft measurement system in teaching factory through measurement system analysis: A case study Sumasto, Fredy; Samudra, Bayu; Hakim, Ali Rachman; Imansuri, Febriza; Pratama, Indra Rizki
Journal Industrial Servicess Vol 11, No 1 (2025): April 2025
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jiss.v11i1.30298

Abstract

Ensuring accurate measurement of precision components is critical in the automotive industry. This study investigates measurement challenges for screw shaft components at the Teaching Factory of Politeknik STMI Jakarta. The initial measurement system performed poorly, with 100% total variation attributed to measurement error and a Number of Distinct Categories (Ndc) of 1, indicating an inability to distinguish product variations. To address this, a Measurement System Analysis (MSA) using the Gage Repeatability and Reproducibility (GRR) method was conducted. Improvements, including operator training, regular calibration, and a custom jig fixture, were implemented. As a result, the GRR value decreased to 26.27%, with repeatability contributing 25.40% and reproducibility 6.74%. The Ndc value increased to 5, reflecting improved capability to differentiate product variations. These outcomes demonstrate that MSA is an effective strategy for evaluating and enhancing measurement systems. It is particularly valuable in vocational education settings to ensure measurement reliability, maintain quality standards, and support industry-relevant skill development.
Implementation of Min-Max Stock Insert Components to Prevent Lost Opportunity Tooling Case Study: Automotive Component Company Imansuri, Febriza; Hermawan, Yuda; Sumasto, Fredy; Pratama, Indra Rizki; Dendra, Feby Gusti; Imdam, Irma Agustiningsih
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 6, No 2: June 2025
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v6i2.26678

Abstract

Inadequate or delayed supply of raw materials or components needed for production can lead to line stoppages. Reducing the frequency and duration of line stoppages is crucial for maintaining efficiency and meeting production targets. It can happen due to logistics problemsThis research was conducted in the logistics department of an automotive component company. One of the causes is the procurement of tooling, which needs to be improved for production needs. The tooling factor is part of the logistics scope and is the highest factor causing lost opportunities and line stoppages. To minimize the impact of line production stoppages, manufacturers often implement strategies like implementing a minimum stock of insert components. The problem-solving methodology includes a five whys analysis, conducting a Pareto diagram, determining the service level of the stock level, and calculating the maximum-minimum stock level. Based on the result, 17 types of inserts must apply stock levels to avoid stock shortages.
Model Optimasi Perancangan Jaringan Rantai Pasok Biomassa dari Tandan Kosong Kelapa Sawit di Sumatera Barat Imansuri, Febriza; Hadiguna, Rika Ampuh; Afrinaldi, Feri
Jurnal Optimasi Sistem Industri Vol. 18 No. 1 (2019): Published April 2019
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v18.n1.p1-13.2019

Abstract

West Sumatra has great potential in developing biomass based on palm oil waste. This is because the largest plantation production in West Sumatra comes from the oil palm commodity of 1,082,820 tons in 2014. Therefore, it is necessary to design a model of supply chain biomass network for the distribution of Empty Fruit Bunches (EFB) from CPO factory suppliers located in West Sumatra and distributed to Depot Pertamina Teluk Kabung. Stages performed in the implementation of this study began with a preliminary study to determine the potential of biomass in West Sumatra. Furthermore, the design of chain supply chain optimization model by identifying supply chain activity, knowing the characteristics of supply chain system and make the formulation of mathematical model. The design of supply chain biomass from Empty Fruit Bunches (EFB) in West Sumatera, starting from raw material Tandan Kosong Kelapa Sawit (TKKS) sourced from Crude Palm Oil (CPO) factory in West Pasaman Regency and surrounding. This is because Pasaman Barat Regency is the central agroindustry of oil palm plantation which has 17 most palm oil factories in West Sumatra. The potential of bioethanol derived from CPO waste can be done by establishing bioethanol plant located with the same CPO factory so that it is adjacent to the source of the raw material. The result of the mathematical model mixed integer linear programming is placement of bioethanol plant location at PT Pasaman Marama Sejahtera with medium scale and total cost of IDR 251,563,700,000.00.
Reducing Defects Using DMAIC Methodology in an Automotive Industry Imansuri, Febriza; Chayatunnufus, Tasya; Safril, Safril; Sumasto, Fredy; Purwojatmiko, B. Handoko; Salati, Dianasanti
Spektrum Industri Vol. 22 No. 1 (2024): Spektrum Industri - April 2024
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v22i1.171

Abstract

Quality is when it meets the wants and expectations of customers or even exceeds them. Every company must raise the quality of its current products and services. A complete and adaptable approach for establishing, maintaining, and maximizing company success is Six Sigma. Define, Measure, Analyze, Improve, and Control (DMAIC) is one of the tools used to implement Six Sigma. PT. KRM is one company engaged in the automotive sector, which produces Colt Diesel trucks. This research focuses on the welding processes. Defective products were found in as much as 5% of total production, exceeding the company's target of 3%. This research was conducted to determine the process capability based on product defects with the Six Sigma DMAIC method approach, then to find out the proposal for implementing quality control by analyzing the causes of defects in the production process and then looking for continuous improvement with the 5W+1H concept. The improvement was made to decrease the DPMO value of 4.496 and increase the sigma value of 0.19. This study demonstrates how the Six Sigma DMAIC approach can improve the quality of the cabin production process for the part side outer pillar LH. This case can help company managers apply Six Sigma methods to solve complex problems in other processes.
CRAFT Method to Minimize Material Handling Cost in Automotive Component Industry Aisyah, Siti; Ra, Taufiqurrahman; Sumasto, Fredy; Imansuri, Febriza; Aminudin, Muhammad; Rusmiati, Emi
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 6, No 3: October 2025
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v6i3.25388

Abstract

In automotive component manufacturing, an efficient plant layout minimizes material handling costs (MFCs). The problem is the high material handling costs for the production of 2DIN Radio Bracket MK 56660 at PT XYZ because it is produced at two factories, Factory 1 and Factory 9, which are pretty far apart. Using the Computerized Relative Facility Allocation Technique (CRAFT), this study aims to optimize the plant layout by exploring alternative configurations that facilitate cost-effective material handling. The initial assessment of the 2DIN Radio Bracket MK 56660 layout revealed a material transfer cost. Applying the CRAFT method, two different alternative proposals for layout improvement emerged. The first alternative showed a reduction in material transfer costs of IDR 476.11. In contrast, the second alternative resulted in a slightly higher cost of IDR 476.21. The study findings concluded that the first alternative, with the lowest cost of IDR 476.11, is the preferred choice to improve the plant layout and minimize MMF. This study provides practical insights into plant layout optimization in the automotive component industry and underscores the effectiveness of the CRAFT method in identifying cost-effective solutions to material handling challenges.
Designing An SKU Counter for Calculating SKU Assemblies In Warehousing: A Technology-Based Approach Feby Gusti Dendra; Agnes Vicky; Febriza Imansuri
JRSI (Jurnal Rekayasa Sistem dan Industri) Vol. 12 No. 01 (2025): Jurnal Rekayasa Sistem & Industri
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jrsi.v12i01.9086

Abstract

Inventory management in warehouses faces challenges in terms of SKU (Stock Keeping Unit) counting accuracy, especially in the assembly process. The manual method used is not only time-consuming but also increases the risk of recording errors, which impacts overall operational performance. This study aims to design a technology-based SKU counter (Counting System) system to improve the efficiency and accuracy of assembly SKU counting. The system is designed with a warehouse technology approach that utilizes software to automatically count assembly SKUs and generate real-time inventory reports. Implementation is carried out through simulations in a warehouse environment to test aspects of speed and accuracy. The results show that the system is able to increase operational efficiency by up to 50%, optimize the inventory management process and significantly reduce recording errors in managing assembly SKUs in the warehouse.
Evaluation of Work Posture Using the REBA Method and Ergonomic Intervention at the Gelora Bakery MSME in Jakarta Pratama, Indra Rizki; Sumasto, Fredy; Imansuri, Febriza; Salati, Dianasanti; Purwojatmiko, B. Handoko
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8455

Abstract

Micro, small, and medium enterprises (MSMEs) play a crucial role in community economic development, yet many neglect occupational safety and health (OSH) and ergonomic considerations for their workforce. An initial assessment at Gelora Bakery, a small-to-medium bakery enterprise in Jakarta, revealed significant ergonomic and safety deficiencies. Workers frequently engaged in unsafe manual handling tasks—bending awkwardly while lifting heavy loads such as flour sacks, baking material buckets, and butter containers without mechanical support. These unsafe working conditions pose a substantial risk of work-related musculoskeletal disorders (WMSDs) among workers. To address these concerns, this research employs the Rapid Entire Body Assessment (REBA), a standard ergonomic evaluation method, to systematically assess worker postures and quantify the risk of musculoskeletal injury. Based on the results of the REBA assessment, the highest score obtained was 10. This rating indicates a high-risk category and requires implementation of changes. This study formulates evidence-based recommendations for improving workplace safety and worker posture at Gelora Bakery. The implementation of ingredient storage shelves represents the primary intervention recommended to create a safer, healthier, and more efficient work environment.
Co-Authors Abdussalam Topandi Afrinaldi, Feri agnes vicky Agnes Vicky Aisyah, Siti Al Kautsar Permana Ali Rachman Hakim Aminudin, Muhammad Amrina, Elita Anita Putri Permatasari Ardy Riyanto Aritama, Ditya B. Handoko Purwojatmiko Bayu Samudra Bifadhlih, Nafroh Bismo Zulfikar Mustofa Cantika Puspa Maharani Chayatunnufus, Tasya Dewi Auditiya Marizka Dianasanti Salati Emi Rusmiati Fauziah Aulia Feby Dendra Feby Gusti Dendra Hakim , Ali Rachman Hakim, Ali Rachman Hermawan, Yuda Ikhsanjani, Abdul Malik Indra Rizki Pratama Irhannudin, Muhammad Irma Agustiningsih Imdam Isma Wulansari Ismono, Ahlan johannes johannes Khadijah Sayyidatun Nisa Kristanto, Putri Andini Lai, Kenny Laksmi Ambarwati Mohammad Wirandi Muhamad Zen Muhammad Aminuddin, Muhammad Muhammad Ardiansyah Muhammad Zen Nurhadi, Hikari Qurrata’ain Prajoti, Harzya Dahmar Prajoti Priandi, Fajar Putra Ra, Taufiqurrahman Rahimun, Farhan Bagus Rahmat Dwi Febriyanto Rahmat Dwi Febriyanto Reza Melliyanno Putra Aji Rika Ampuh Hadiguna Rozi, Muhamad Fahrul Rozi, Muhammad Fahrul Rusmiati, Emi Safril Safril Safril Samudra, Bayu Samudra, Bayu Sanurya Putri Purbaningrum Saputra, Alfiolani Saputra, Yogi Pangestu Sayidina, Anabel Marcia Septian Adi Cahyo Shabrina Razan Putri Pribadi Shafly, Naufal Lukman Siti Aisyah Siti Aisyah Soekarno, Rahadyan Jyestha Soekarno Solih, Edwin Sahrial Sumasto, Fredy Suroso, Finna Syarifudin, Ahmad Syarifudin Teguh Fathurohman Violeta, Kesya Anatama Violeta Wirandi, Mohammad Wulansari, Isma Wulansari, Isma Wulansari Yesaya Abdi Nugroho