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Selection of Pin Component Sub Suppliers for Checking Fixture Products Using an Analytical Hierarchy Process Approach Imansuri, Febriza; Aritama, Ditya; Sumasto, Fredy; Purwojatmiko, Handoko
Teknoin Vol. 28 No. 2 (2023)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol28.iss2.art3

Abstract

The objective of this study is to employ a multi-criteria decision-making system technique to identify the most optimal supplier in the automotive components sector.   When selecting a supplier, it is crucial to evaluate the pros and downsides of each source in order to secure the most suitable one.   Bahana, Ltd is a company that specializes in the production of plastic components, molds, jigs, and equipment. During the production process of inspecting fixture items, pin components are required to assemble the components that need to be assembled.   At now, there are no explicit guidelines for choosing suppliers, and the selection process relies solely on subjective evaluations.   Consequently, it is necessary to establish supplier selection criteria through the utilization of the Analytical Hierarchy Process (AHP) methodology.   This strategy is highly suitable for resolving decision-making challenges.   Bahana, Ltd employs pairwise comparisons to evaluate four criteria: pricing, quality, communication, and location.   Bahana, Ltd has the highest criteria value of 0.36 in terms of quality, followed by a value of 0.33 in terms of pricing.   Hence, the paramount criteria in supplier selection are quality and pricing.   According to the AHP calculation results, PT A was determined to be the optimal choice as it obtained the highest weight value in comparison to other suppliers.
Desain Sistem Pneumatikaa untuk Otomatisasi Pemilahan Barang di Industri Otomotif Arohman, Abdul Wahid; Purwojatmiko, B. Handoko; Agustin, Desy
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 9 No. 2 (2025): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v9i2.2688

Abstract

Sistem pneumatika menawarkan solusi yang efektif untuk proses pemilahan barang berkat respons cepat dan kemampuan operasional yang tinggi dalam lingkungan industri yang berat. Dengan memanfaatkan udara bertekanan untuk menggerakkan aktuator dan pengendali, sistem ini dapat dengan cepat dan akurat memisahkan barang NG dari barang yang layak produksi. Penggunaan simulasi memungkinkan pengujian dan penyesuaian desain secara virtual sebelum diimplementasikan di lapangan, mengurangi biaya dan waktu pengembangan. Pemilahan barang yang tidak sesuai standar sangat penting untuk menjaga kualitas produk akhir. Dengan teknologi simulasi, kita dapat menyimulasikan berbagai skenario dan parameter operasional untuk memastikan bahwa sistem pneumatika yang dirancang dapat secara efektif memisahkan barang NG dari barang yang layak produksi. Teknologi simulasi canggih memungkinkan analisis yang mendalam terhadap aliran udara, kinerja aktuator, dan interaksi antara sensor dan pengendali dalam sistem pneumatika. Penelitian ini melibatkan berbagai tahap mulai dari perancangan awal, simulasi, hingga analisis hasil simulasi. Hasil dari mengembangkan model simulasi yang komprehensif untuk meminimalkan dan memastikan proses pemilahan yang lebih konsisten dan berkualitas.
Implementation of DMAIC for Production Quality Control: Case Study of Power Supply Production in Indonesia Purwojatmiko, B. Handoko; Ambarwati, Laksmi
Jurnal Teknik Vol 21 No 2 (2023): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v21i2.342

Abstract

The level of competition in the manufacturing industry is getting tougher, making companies must be able to provide the best service to customers. One of the companies in Indonesia engaged in asset monitoring and ship navigation systems, has a production division that produces power supply products. Based on the analysis that has been carried out at the company that there are problems such as a damaged PCB connector that makes the product categorized as a manufacturing defect. This research aims to be able to find alternative improvements to production processes that have a high defect rate. The Define, Measure, Analyze, Improve, and Control (DMAIC) framework is used as a method to shape the mindset of management and employees to be able to solve these problems. Based on this framework, three causes of the problem were found, namely human factors, materials, and inappropriate methods during the production process. Therefore, appropriate corrective actions are taken, and a control process is carried out by comparing control charts, Defects Per Million Opportunities (DPMO) and sigma levels to determine the impact of changes from the improvements made. Quantitatively, there was an increase in the DPMO value of 39.47% and an increase in the sigma level of 8.64%. This shows that the DMAIC framework can provide the right solutions and preventing the same quality problems from happening again.
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.
Designing Factory Layout and Facilities for Car Front Door Production with CORELAP: A Case Study at PT GMI B. Handoko Purwojatmiko; Fredy Sumasto; Takbir Dhuha Shaffah Ahmad; Shafira Fitriani Hastin
Performa: Media Ilmiah Teknik Industri Vol 24, No 1 (2025): Performa: Media Ilmiah Teknik Industri
Publisher : Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.24.1.86833

Abstract

The automotive manufacturing industry is experiencing significant development and has increasingly complex market demand dynamics. The industrial transformation resulting from these developments has had a significant impact on several automotive manufacturing companies. The value of production efficiency, on-time delivery, and product quality means that companies must have the right strategy in meeting customer demand. Fulfilling customer requests can be realized by opening new adequate facilities. Factory layout and facility design can be a key factor in achieving this goal, especially in the production of front door components model. This research aims to comprehensively detail the design of the factory layout and facilities using the CORELAP method. CORELAP implementation involves collecting supporting data, including Operation Process Chart (OPC), Routing Sheet, Floor Area Requirement, Activity Relationship Chart (ARC), and Activity Relationship Diagram (ARD). The CORELAP method prioritizes spatial relationships to ensure that closely related facilities are strategically located. Design This layout design was created to provide an overview of the strategy for structuring production facilities and their supports to produce an effective and efficient design. Apart from the overview, the analysis carried out can also provide space for stakeholders to be able to utilize the CORELAP strategy in creating new factory layouts and facilities to support improving the company's work performance and meet customer satisfaction. The cost of material handling is calculated to determine the expenses involved in establishing a production facility for car front doors, totaling IDR 763,959. This cost is approximately 10% lower than the current material handling cost, which is IDR 856,888. The results of this research are design proposals that can be utilized or taken into consideration by industrial stakeholders.
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.