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All Journal Journal of Industrial Engineering Management JURNAL REKAYASA SISTEM INDUSTRI Cerdika: Jurnal Ilmiah Indonesia
Alisyahbana, Takdir
Fakultas Teknologi Industri Universitas Muslim Indonesia
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences

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PERANCANGAN ULANG TATA LETAK FASILITAS PRODUKSI MENGGUNAKAN METODE ALGORITMA CRAFT PADA PT. SERMANI STEEL MAKASSAR Ahmad Padhil; Andi Pawennari; Takdir Alisyahbana; Firman Firman
JURNAL REKAYASA SISTEM INDUSTRI Vol 7 No 1 (2021): (November 2021)
Publisher : Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/jrsi.v7i1.4496

Abstract

Factory layout is one of the most important problems in a company, because the arrangement of facilities affects the efficiency and cost of manufacturing products. PT. Sermani Steel of Makassar City is one of the companies engaged in the manufacture or production of zinc-coated steel sheets (Zn) with a production capacity of 3000 tons/year, the problem that occurs is that the layout of related departments is far apart, causing large moving costs. The CRAFT Algorithm method is an improvement program that seeks optimum planning by making improvements in stages with the help of the WinQsb software. The CRAFT algorithm method can describe each department and calculate the Material Handling Cost (OMH) experienced by the product during the production process. Based on the results of research conducted, the cost of moving materials in the initial layout is Rp. 1,636,270,800/year after repairing the layout of the facility, the transfer fee is Rp. 1,467,309,300/year with a difference of Rp. 168,961,500 per year, material transfer costs have decreased by 10% from the initial layout.
SCHEDULING MAINTENANCE PROPOSAL FOR TURBINE MACHINES USING THE AGE REPLACEMENT METHOD AT BALAMBANO HYDROELECTRIC POWER PLANT PT. Vale Indonesia Tbk. Rahmaniah Malik; Nurhayati Rauf; Takdir Alisyahbana; Arfandi Ahmad; Asrul Fole
Journal of Industrial Engineering Management Vol 9, No 1 (2024): Journal of Industrial Engineering and Management Vol 9 No 1
Publisher : Center for Study and Journal Management FTI UMI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jiem.v9i1.1841

Abstract

PT. Vale Indonesia Tbk. is a company engaged in the mining industry, particularly in nickel processing (Ni). The company operates a power plant at Balambano Hydroelectric Power Plant (2x68.5 MW). The company's usual maintenance practice is limited to corrective maintenance, which involves replacing or repairing components only when they are damaged. The aim of this research is to determine the optimal replacement time for preventive maintenance on turbine machines in order to minimize downtime. The age replacement method is used to calculate the replacement interval for components based on their usage life. The research findings show that the mean time to failure (MTTF) of the wicket gate is 2217.824 hours or 92.41 days, which means that the component may experience failure again after operating for that MTTF duration. Therefore, the recommendation is to replace the component every 85 days of operation and perform inspections every 15 days.
DISTRIBUTION ROUTE ANALYSIS WITH SAVING MATRIX METHOD IN DETERMINING HOT MIX ASPHALT (HMA) DISTRIBUTORS Muhammad Fachry Hafid; Muhammad Dahlan; Nurhayati Rauf; Takdir Alisyahbana; Rahmaniah Malik
Journal of Industrial Engineering Management Vol 8, No 3 (2023): Journal of Industrial Engineering and Management Vol 8 No 3
Publisher : Center for Study and Journal Management FTI UMI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jiem.v8i3.1370

Abstract

The Gorontalo Regency Public Works Department is responsible for a road construction program, in this case, the Public Works Department will conduct project auctions from several existing road projects and there will be one contractor company that will get an auction, where the contractor will produce asphalt in one of the Asphalt companies. Mixing Plant (AMP). The asphalt distribution process of course has routes and distribution costs where this needs to be optimized to get efficient planning in the distribution process, in the project data of the Public Works Department in 2022 there are five road projects and in the Gorontalo Regency area there are five (5) Asphalt Mixing Plants ( AMPs). Distribution is one part of the activities of Supply Chain Management which distributes goods and services from producers to consumers. The idealism of distribution is to distribute or deliver the right amount and type of product at the right time and place at the lowest possible cost to generate maximum profit. The Vehicle Routing Problem (VRP) is related to determining the route for the problem of distributing goods or products involving more than one vehicle with a certain capacity to serve some customers with their respective requests. The results of this study found that the determination of the distribution route of hot mix asphalt with the saving matrix method found that, the Otopade-Liyoto Project (F1) with 1,639 Ton Asphalt Demand, the selected asphalt distributor was (F0-E) PT.PETRA with a distance of 14.4 Kilometers with a total cost of Rp42,508,800. Project (F2) road project Construction of the Buhu - Iloponu Perintis road with an asphalt demand of 609 tons, the selected asphalt distributor is (F0A) PT. Cahaya Nusa Sulutarindo with a distance of 9.6 Kilometers with a Total Cost of Rp 11,712,000. Project (F3) Pilomonu – Pasir Putih road with 763 Ton Asphalt Demand, the selected asphalt distributor is (F0-E) PT.PETRA with a distance of 38.1 Kilometers with a total cost of Rp52,806,600. Project (F4) of Molohu – Langge road with 656 Tons of Asphalt Demand, the selected asphalt distributor is (F0-E) PT.PETRA with a distance of 42.4 kilometers with a total cost of Rp 50,371,200. For the project (F5) of the Helume Bihe - Sukamaju road with an asphalt demand of 1,564 Tons, the selected asphalt distributor is (F0-E) PT.PETRA with a distance of 32.6 Kilometers with a total cost of Rp 92,127,600. Keywords: Distribution, Supply Chain Management, Vihicle Routing Problem, Asphalt Mixing Plant, Hot Mix Asphalt, Direct Shipment, Routes, Cost
Analisis Efektivitas Total Productive Maintenance (TPM) Dengan Menggunakan Metode Overall Equipment Effectiveness pada Mesin Hidrolik di SMK SMTI Makassar Wahyudi Rusydi; Takdir Alisyahbana; Ahmad Padhil
Cerdika: Jurnal Ilmiah Indonesia Vol. 5 No. 2 (2025): Cerdika: Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v5i2.2403

Abstract

SMK SMTI Makassar adalah salah satu sekolah di Makassar yang memiliki pabrik pengolahan rumput laut. Namun terdapat permasalahan yang berada didalam aktivitas pabrik yaitu menurunnya performansi mesin hidrolik rumput laut SMK SMTI Makassar mengakibatkan target produksi tidak tercapai. Sehingga penelitian ini bertujuan untuk menganalisis efektivitas penerapan Total Productive Maintenance (TPM) pada mesin hidrolik di Pabrik Rumput Laut SMK SMTI Makassar dengan menggunakan metode Overall Equipment Effectiveness (OEE) serta menganalisis penyebab utama kerugian produksi melalui pendekatan Six Big Losses. Hasil perhitungan menunjukkan bahwa nilai OEE pada mesin hidrolik adalah sebesar 63%, yang termasuk dalam kategori sedang dan belum mencapai standar kelas dunia (85%). Salah satu faktor utama yang menyebabkan nilai OEE belum optimal adalah rendahnya rasio performance mesin, terutama pada bulan Mei dan Juni. Analisis Six Big Losses mengidentifikasi bahwa total kerugian produksi mencapai 34,80%, dengan penyebab dominan berupa reduced speed losses sebesar 24,67%. Kerugian ini menyebabkan perlambatan proses produksi, yang jika digambarkan melalui diagram pareto, memperlihatkan reduced speed losses sebagai kategori kerugian yang paling signifikan. Berdasarkan hasil ini, disarankan agar SMK SMTI Makassar menerapkan metode pemeliharaan baru berupa Total Productive Maintenance (TPM) untuk meningkatkan efektivitas mesin.
Co-Authors Ahmad Padhil Andi Pawennari Arfandi Ahmad Asrul Fole Firman Firman Muhammad Dahlan Muhammad Fachry Hafid Nurhayati Rauf Rahmaniah Malik Wahyudi Rusydi