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All Journal Industrika : Jurnal Ilmiah Teknik Industri Journal of Management and Industrial Engineering (JMIE) Sainteks: Jurnal Sain dan Teknik
Hendi Iskandar
Sekolah Tinggi Teknologi Wastukancana
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering

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Supply Chain Optimization Footwear Products in West Java to Improve Industrial Competitiveness Hendi Iskandar
SAINTEKS : Jurnal Sain dan Teknik Vol. 8 No. 01 (2026): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v8i01.1077

Abstract

The footwear industry in West Java is one of the largest contributors to national manufacturing exports, yet it faces persistent challenges related to supply chain inefficiency, distribution costs, and competitive vulnerability. This study proposes a quantitative supply chain optimization framework for large-scale footwear manufacturers in West Java using Linear Programming (LP) and Economic Order Quantity (EOQ) models. The objective function minimizes total supply chain cost, encompassing procurement, transportation, and inventory holding costs, subject to supply capacity, demand fulfillment, and budget constraints. Primary data were collected from four major production centers—Bandung, Garut, Bogor, and Purwakarta—representing six supplier nodes and four distribution hubs. The LP model yields an optimal distribution plan that reduces total logistics cost by 18.4% compared to the existing plan, from Rp 4,320,000,000 to Rp 3,524,160,000 per year. EOQ analysis indicates an optimal order quantity of 15,625 pairs per order cycle, reducing inventory carrying cost by 22.7%. The results confirm that the proposed optimization approach significantly improves supply chain efficiency and enhances the competitiveness of West Java's footwear industry in both domestic and global markets
MENINGKATKAN EFISIENSI BIAYA PRODUKSI DENGAN MENGGUNAKAN METODE JUST IN TIME PADA HOME INDUSTRY KERUPUK RAIHAN PURWAKARTA Laela Sagita; Hendi Iskandar; Darmawan Yudhanegara; Diki Muchtar
Journal of Management and Industrial Engineering (JMIE) Vol. 2 No. 2 (2023): SEPTEMBER
Publisher : LPPM Sekolah Tinggi Teknologi Nusantara Lampung

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Abstract

Penelitian ini bertujuan untuk mengetahui penerapan metode Just InTime dalam meningkatkan efisiensi biaya produksi pada home industri kerupuk raihan. Pengumpulan data dilakukan dengan wawancara, observasi dan studi dokumentasi. Data yang diolah adalah laporan persediaan tahun 2022. Teknik perhitungan yang digunakan adalah menghitung total biaya produksi berdasarkan kebijakan perusahaan, metode EOQ, dan metode JIT/EOQ, serta menghitung siklus penjadwalan produksi. Berdasarkan hasil perhitungan disimpulkan bahwa kebijakan pengendalian persediaan yang dilakukan perusahaan belum maksimal terlihat dari total biaya produksi yang dikeluarkan sebesar Rp.5.952.274,- dibandingkan dengan metode JIT/EOQ sebesar Rp.1.463.008,-sehingga total biaya yang dihemat sebesar Rp.4.489.226,-
Usulan Perbaikan Sistem Perawatan Pada Mesin Cup Sealer Dengan Menggunakan Metode FMEA dan Fault Tree Analysis di Bagian Produksi CV Rahmat Sanusi Putra Muhammad Husen; Hendi Iskandar; Darmawan Yudhanegara
Journal of Management and Industrial Engineering (JMIE) Vol. 3 No. 1 (2024): MARET
Publisher : LPPM Sekolah Tinggi Teknologi Nusantara Lampung

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CV. Rahmat Sanusi Putra is a company that produces bottled drinking water (AMDK) with the brand (nusarina), CV Rahmat Sanusi Putra is faced with problems with its production machines which sometimes experience damage as a result when the production process is hampered and downtime arises. priority scale and causes of damage, and provide recommendations for improvements to reduce the occurrence of machine damage. research using the Failure Mode And Effect Analysis method to find the priority scale and the Fault Tree Analysis method to find the cause of the damage. Data collection through observation and interviews. The highest priority scale obtained on the CV. Rahmat Sanusi Putra in September and November was in the cutting component section with an RPN value of 36. Factors causing machine damage were due to lack of machine maintenance and lack of routine checks resulting in dust or dirt accumulating on the cutting which causes the blade to become blunt and broken. The proposed improvements are to make a monitoring system to carry out proper monitoring, such as doing General Cleaning 2 times and Scouring 2 times in 1 month.
Usulan Perbaikan Kualitas Menggunakan Pendekatan QCC dan AHP pada Produk Heat Exchanger di PT. Tokki Engineering and Fabrication M. Fariq Alfawwaz; Hendi Iskandar; Indra Gumelar
Industrika : Jurnal Ilmiah Teknik Industri Vol. 10 No. 3 (2026): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/4hs69106

Abstract

Tokki Engineering and Fabrication is a company engaged in the fabrication of industrial equipment such as heat exchangers. During the period from January to March 2025, the company produced three units of heat exchangers, all of which were identified to have weld joint defects based on radiography inspection results. A total of 34 out of 315 films were rejected, with porosity being the dominant defect type, accounting for 21 cases or 62%. The approach used was the Quality Control Circle method, supported by analysis tools such as fishbone diagrams, matrix diagrams, and solution selection using the Analytical Hierarchy Process. The study results indicate that the use of blowers in the welding area is the main root cause of porosity defects. Among four evaluated alternative solutions, installing visual signs and warning indicators in the work area was chosen as the most effective and preventive improvement proposal. If this improvement is implemented, the defect rate is estimated to decrease by 100%, based on assessments by internal company experts who understand the actual processes and conditions in the field. Keywords: AHP, Heat Exchanger, Matrix Diagram, Porosity Defect, Quality Control Circle
Co-Authors Darmawan Yudhanegara Diki Muchtar Indra Gumelar Laela Sagita M. Fariq Alfawwaz Muhammad Husen