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Jurnal Mitra Teknik Industri
Published by Universitas Tarumanagara
ISSN : 28293347     EISSN : 2829338X     DOI : https://doi.org/10.24912/jmti
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Jurnal Mitra Teknik Industri (JMTI) adalah Jurnal Ilmiah sebagai wadah pengembangan bidang ilmu Teknik dan Manajemen Industri, berisi hasil kajian dan penelitian dari dosen, peneliti, serta praktisi industri. Jurnal Mitra Teknik Industri diterbitkan oleh Program Studi Teknik Industri Fakultas Teknik Universitas Tarumanagara Jakarta, dalam waktu 1 (satu) tahun terbit 3 (tiga) kali.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 109 Documents
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ANALISIS PEMBOROSAN PRODUKSI KAIN PANEL MELALUI PENDEKATAN LEAN SUPPLY CHAIN Marsella; Kosasih, Wilson; Salomon, Lithrone Laricha
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34956

Abstract

This study assesses the efficiency of a panel fabric production line at a Bekasi textile company using a Lean Supply Chain approach. Selected for its highest defect rate (62,919 defects from October 2024 to March 2025), 14 machines, and longest cycle time (14 days per batch), the line’s efficiency, dominant wastes, and improvement opportunities were examined. A descriptive single-case design gathered data through in-depth interviews, focus groups, and a seven-waste questionnaire. Process analysis began with Current Value Stream Mapping (VSM), followed by Value Stream Analysis Tools (VALSAT) via Process Activity Mapping (PAM) and Process Cycle Efficiency (PCE) calculations, then a 5 Whys analysis. PAM results indicated a PCE of 34.33%. The 5 Whys identified three root causes of waste: (1) lack of standardization and visual management, (2) unintegrated information flow, and (3) limited human-resource and equipment capacity. Key wastes included excess motion, inefficient material transport, inventory buildup, and waiting time. Recommendations include implementing 5S for workplace standardization, digitizing production with a pull system, and applying heijunka, kanban, and balanced flow to level production. Scheduled machine maintenance is advised to reduce defects. Adopting Hoshin Kanri and Future VSM will support continuous improvement and strategic alignment. These measures aim to reduce waste, boost productivity, sustain competitiveness, and foster sustainable business.
DYNAMIC SYSTEM SIMULATION TO IMPROVE SUPPLY CHAIN PERFORMANCE IN FOOD AND BAVERAGE COMPANIES Sylvia; Ahmad; Kosasih, Wilson
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34957

Abstract

In facing increasingly competitive business competition, food and beverage companies are required to improve production efficiency and maintain supply chain resilience in order to achieve optimal production targets. This study was conducted to identify the factors causing the discrepancy between targets and actual production results, evaluate supply chain performance, and simulate improvement scenarios using dynamic systems. The Supply Chain Operation Reference (SCOR) approach is used as a framework in analyzing and identifying critical points in the supply chain. Furthermore, performance measurement is carried out using the Snorm De Boer method to assess performance and determine indicators that require improvement. Scenario simulations were carried out using Powersim Studio 10 to test the influence of various variables. Based on the results of the simulation and ANOVA statistical testing, the best scenario for reducing product defects from the production line is scenario 3 and the best scenario for reducing SBL downtime is scenario 2. And when viewed as a whole, scenario 5 is the most balanced scenario because it is able to reduce SBL downtime by 1.82% and reduce product defects from the production line by 1.19%, thus providing a positive impact in a balanced way on operational efficiency and production quality. This research is expected to be a reference in making strategic company decisions and developing supply chain evaluation methods in the future.
ANALISIS RISIKO RANTAI PASOK PADA DIVISI PENGADAAN PERUSAHAAN KELAPA SAWIT DENGAN METODE ANP Putri, Fedra Hardianto; Salomon, Lithrone Laricha; Doaly, Carla Olivia
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34958

Abstract

Industri kelapa sawit memiliki peran penting dalam perekonomian Indonesia. Namun dalam proses rantai pasoknya, sering terjadi berbagai risiko yang dapat menghambat kelancaran operasional dan rantai pasok, salah satu yang paling berdampak adalah pada bagian pengadaan yang sangat mempengaruhi jalannya rantai pasok. Penelitian ini bertujuan untuk menganalisis risiko rantai pasok pada divisi pengadaan sebuah perusahaan kelapa sawit dengan menggunakan metode Analytical Network Process (ANP). Metode ANP digunakan untuk pengambilan keputusan karena mampu menganalisis hubungan antar kriteria risiko. Data dikumpulkan melalui wawancara, observasi, dan penyebaran kuesioner kepada lima responden dari divisi pengadaan dan pabrik dengan pengalaman minimal tiga tahun. Risiko-risiko diidentifikasi berdasarkan enam kriteria utama dalam proses pengadaan, yaitu pengajuan PR, RFQ, proses PO, pengiriman barang, penerimaan barang, dan kondisi alam, yang masing - masing terdiri dari beberapa sub-kriteria risiko. Hasil analisis menunjukkan bahwa seluruh kriteria dan sub-kriteria risiko telah valid dan konsisten. Kriteria risiko tertinggi didapatkan pada proses PO, kemudian kondisi alam, proses penerimaan barang, pengiriman barang, RFQ, dan terakhir pengajuan PR, sedangkan pada sub-kriteria risiko, risiko dengan prioritas tertinggi ada pada spesifikasi barang tidak sesuai pesanan, diikuti oleh barang terlambat diambil oleh PIC pabrik dan perubahan keputusan pembelian mendadak. Risiko pareto menunjukkan bahwa bobot risiko tertinggi berada pada sub-kriteria yang perlu menjadi prioritas dalam penyusunan strategi mitigasi. Berdasarkan risiko prioritas, perusahaan disarankan untuk memperkuat kerja sama dengan vendor dan melakukan diversifikasi supplier, mengembangkan sistem pelacakan pengiriman real-time, serta melakukan perencanaan pengadaan jangka panjang untuk mengurangi dampak risiko dan meningkatkan efisiensi rantai pasok.
PERANCANGAN FLYWHEEL HOLDER YANG ERGONOMIS UNTUK MEMPERCEPAT PROSES KERJA Farrel, Ricky; Sukania, I Wayan; Utama, Didi Widya
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34961

Abstract

The high number of motorcycles in Indonesia increases the need for regular servicing, especially for the CVT system. However, the CVT servicing process in motorcycle repair shops still faces obstacles such as limited tools, the risk of injury due to component fitting, and low mechanical work efficiency. This study aims to design an ergonomic Flywheel Holder to improve comfort, safety, and work speed when removing CVT components. The design method uses the VDI 2221 approach for systematic design, TRIZ for design problem solving and ergonomic principles to adapt the tool to the mechanic's working conditions. Data were obtained through observation, interviews, Likert scale questionnaires, and time studies, and validity and reliability tests were conducted on data collection instruments. The results showed that the average temperature of the pulley during the service process reached 56.1℃, making it unsafe to touch directly by hand. The designed tool was proven to be able to hold the pulley stably, speed up the service process, and improve work safety. This design is the right solution to support the efficiency and ergonomics of motorcycle repair shops.
PERANCANGAN LUMBAR SUPPORT TERHADAP KELUHAN MUSKULOSKELETAL PADA LINGKUNGAN KERJA PERKANTORAN Hidayat, Michael; Widodo, Lamto; Sukania, I Wayan
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34964

Abstract

Office workers are at high risk of developing musculoskeletal disorders due to prolonged static sitting positions. This study was conducted at the Indonesia Exim bank to explore the relationship between office chair design particularly the presence of lumbar support and musculoskeletal complaints. The methods used included questionnaires, as well as assessments using RULA and the Nordic Body Map, involving 32 participants. The results indicated that the lower back and waist were the most frequently reported areas of discomfort. Although the chairs used were ergonomically designed, the lumbar support was not optimal. By designing a lumbar support based on anthropometric data, a significant improvement in posture comfort was observed.
PERANCANGAN ALAT BANTU KERJA BERDASARKAN ANALISIS ERGONOMI DI BAGIAN MANUAL HANDLING PT. XYZ Baeri, La Ode Muhammad Fardhan Sabil; Widodo, Lamto; Sukania, I Wayan
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34966

Abstract

In the printing industry, ergonomic factors are often overlooked despite their significant impact on worker health and productivity. PT XYZ, as a packaging and carton printing company, is facing musculoskeletal disorders (MSDs) complaints in workers in the manual handling section due to non-ergonomic workstation design. This study aims to identify ergonomic risk factors, analyze MSDs complaints, and design ergonomic workstation improvements. The methods used include Nordic Body Map (NBM) for complaint mapping, Rapid Entire Body Assessment (REBA) for work posture analysis, and Workplace Ergonomic Risk Assessment (WERA) for ergonomic risk evaluation. The NBM questionnaire shows that the body parts of the 1st and 2nd shift workers who predominantly experience pain complaints are pain in the back, left hand and right knee. While the REBA method obtained a value of 9 in the most extreme posture which means high risk and needs improvement. While in WERA the final score is 34 which means that the tasks performed by workers need to be investigated and needed for improvement. Therefore, the design of work tables and work chairs is carried out to improve the work posture of PT XYZ workers. This design is tailored to the needs of workers at PT XYZ so as to reduce the risks that are likely to occur.
EVALUASI ERGONOMI DAN ESTETIKA GAGANG WAJAN: STUDI EKSPERIMEN PADA BERBAGAI WAJAN Abadi, Starletto; Sukania, I Wayan; Utama, Didi Widya
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34967

Abstract

The pan handle is a crucial component that influences the comfort, safety, and user perception of cookware. However, existing market designs often compromise on one of two fundamental aspects: ergonomics or aesthetics. This study aims to (1) evaluate the ergonomic and aesthetic aspects of ten different commercial pan handle designs, (2) analyze the correlation between these two aspects, and (3) apply the findings to design and validate a new, superior concept. An experimental method with a within-subject design involved 30 participants who performed a series of simulated use tasks and provided subjective ratings using a Likert scale. Data were analyzed using the Friedman test with a post-hoc Wilcoxon Signed-Rank test, and Spearman's rank correlation. The results showed highly statistically significant differences in the ergonomic (χ²(9) = 257.300, p < .001) and aesthetic (χ²(9) = 238.920, p < .001) ratings. Furthermore, a very strong and highly significant positive correlation was found between perceived ergonomics and aesthetics (ρ = .900, p < .001). These findings were then successfully applied to develop a physical prototype, which was validated with an ergonomic comfort score of 4.07 and an aesthetic score of 4.33. This research provides important implications for the holistic design of pan handles, emphasizing that the integration of functional and visual considerations is crucial for enhancing the overall user experience.
PERANCANGAN MAINTENANCE SCORECARD DALAM PENILAIAN KINERJA MAINTENANCE PADA PRODUKSI GLASS BLOCK Wijaya, Levina Halim; Ahmad; Salomon, Lithrone Laricha
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34968

Abstract

Maintenance management is crucial to a company's success. PT XYZ is a glass manufacturing company that produces various types of glass. The company faces high downtime issues, especially in one of its production plants, that is glass block production. Machine breakdowns frequently halt the production process, leading to inefficiencies in various aspects. Therefore, an evaluation of the maintenance system is needed. The methods used in this study are SWOT analysis, Maintenance Scorecard, and AHP method. The SWOT analysis placed the company in quadrant 4 and identified 16 matrix strategies. The Maintenance Scorecard framework produced 20 KPIs to asses maintenance performance. The overall maintenance performance score was 84.73%. AHP method was employed to identify KPIs that should be prioritized. The five KPIs with the highest weight are: Number of Work Accidents, Quality Rate, Patrol Check, Production Efficiency, and Budget Realization. The five KPIs with the largest gaps between actual performance and targets are: Ratio of Overtime to Normal Working Hours, Loss Glass, Number of Work Accidents, Overtime Cost Index, and Quality Rate.
ANALISA TINGKAT KERUSAKAN PRODUKSI KEMASAN KARTON MENGGUNAKAN METODE SIX SIGMA DI PT XYZ Goklas, Bonifasius Justin Abel; Adianto; Saryatmo, Mohammad Agung
Jurnal Mitra Teknik Industri Vol. 4 No. 2 (2025): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v4i2.34969

Abstract

PT XYZ is a manufacturer engaged in the field of cardboard packaging producers. Cardboard products are needed by traders to wrap their products safely until they reach consumers. Cardboard packaging is often found in various forms of defects in its production. The increase in defect production is a concern because it is detrimental to the company. The study was conducted to help the company identify production defects that occur in the cardboard packaging printing process. The analysis in this study used descriptive quantitative methods and Six Sigma DMAIC. This study uses a number of data from field observations and interviews with company employees, as well as data documentation owned by the company. So this study was conducted to improve product quality, find out the causes of defects in the production process, and provide suggestions for improvements and control of product quality. Based on the results of the study, the highest type of defect was found in uneven gluing and asymmetrical cardboard cutting. The cause of this was due to human factors that did not pay attention to the company's operational standards and suboptimal procedure forms.

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