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All Journal Jurnal Teknoin IPTEK Journal of Proceedings Series Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Sewagati
Erwin Widodo
Departemen Teknik Sistem Dan Industri, Institut Teknologi Sepuluh Nopember, Kampus ITS, Keputih, Sukolilo, Surabaya 60111
Arts Humanities Computer Science & IT Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Other

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Analisis Availabilitas Perusahaan Pythalic Anhydride Berdasarkan Persediaan Spare Part dan Penyangga Nurhadi Siswanto; Nabila Yuraisyah Salsabila; Oryza Akbar Rochmadhan; Erwin Widodo
Teknoin Vol. 26 No. 1 (2020)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol26.iss1.art4

Abstract

Penelitian ini akan membahas perusahaan kimia yang memproduksi Pythalic Anhydride (PA) di Indonesia. Perusahaan ini memiliki kapasitas 70.000 Metric Ton Per Year (MTPY). Selama 2017, total waktu produksi adalah 6.699,8 jam atau rata-rata 23 hari. Namun, dibandingkan dengan kapasitas produksi, perusahaan dapat memenuhi permintaan dalam waktu 20 hari tiap bulannya. Waktu produksi minimum diperlukan untuk mencapai layanan pelanggan yang optimal dan biaya minimum. Perbedaan antara kapasitas dan kondisi yang ada disebabkan oleh penutupan pabrik. Penutupan pabrik disebabkan oleh kehabisan inventori material dan kerusakan mesin. Frekuensi penutupan pabrik relatif tinggi. Selama 2014 hingga 2017, pabrik ditutup 48 kali dengan MTTF 3,1 hari dan MTTR 23 jam. Analisis reliability, availability, dan maintainability (RAM analysis) dilakukan untuk mengatasi masalah ini. Secara khusus, penelitian ini akan fokus pada pengembangan skenario dengan melakukan percobaan pada inventori penyangga suku cadang untuk mengurangi waktu produksi dan meningkatkan availabilitas. Pendekatan simulasi digunakan dalam penelitian ini untuk memodelkan perilaku stokastik. Berdasarkan hasil percobaan, waktu produksi berkurang 232,7 jam dan availabilitas menjadi 0,8996.
A Model of Supplier Selection Under Vendor Managed Inventory Contract Zabrina Masud Mangka; Suparno Suparno; Erwin Widodo
IPTEK Journal of Proceedings Series No 6 (2020): 6th International Seminar on Science and Technology 2020 (ISST 2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i6.11134

Abstract

VMI is the main concept for gaining accurate information and information sharing from customers to suppliers to achieve low safety stock levels, efficient inventory cost, and a reduction of ordering cost. There are many suppliers who supply spare part products under the VMI contract. Therefore, the company needs to make a decision for selecting a qualified supplier in order to improve customer service level and customer satisfaction. In addition, the uncertainty and vagueness of the expert's opinion is the prominent characteristic of the problem. Therefore an extensively used multi-criteria decision-making tool AHP can be utilized as an approach for supplier selection problems. This paper reveals the application of AHP model determining the best supplier with respect to selected criteria for selecting the best supplier under the VMI contract among the alternatives. There are criteria in this study namely quality, price, delivery, service, supplier’s background, and Information technology which include thirty subcriteria covers in the VMI contract. This research might be identified the critical criteria for supplier selection under the VMI contract.
Measurement of Cost & Benefit for Implementation of Risk Management in the Production Process Muhammad Rosiawan; Moses Laksono Singgih; Erwin Widodo
IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (851.824 KB) | DOI: 10.12962/j23546026.y2019i5.6428

Abstract

The paper aims to measure the overhead costs and economic benefits of risk management activities in the production process - a manufacturing company. This research uses Activity Based Management (ABM) approach to allocate and track overhead costs in risk management activities. The overhead costs of risk management activities include the costs of identifying, analyzing, evaluating and controlling risks in order to achieve the quality objectives of the production process. The company obtains economic benefits, first, from reducing overhead costs incurred per period from the results of improvements to non-value-added or high-cost activities; second, cost savings obtained from the achievement of quality objectives per period. The results of this study indicate that the ABM approach used is appropriate in measuring the overhead costs and economic benefits of risk management activities in a business process
Throughput Analysis on a Multi-state Manufacturing System by Considering Availability Nabila Yuraisyah Salsabila; Nurhadi Siswanto; Erwin Widodo; Oryza Akbar Rochmadhan
Jurnal Teknik Industri Vol. 21 No. 2 (2019): December 2019
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.302 KB) | DOI: 10.9744/jti.21.2.69-78

Abstract

Manufacturing technology becomes more complex as customer demand increases. Most manufacturing companies consist of multi-state manufacturing networks. Therefore, the reliability and availability parameters become an important issue to satisfy customer demand. Unavailability can result in reducing throughput because of decreasing operational production time. To resolve this problem, the buffer inventory can minimize the occurrence of material starving and production blocking during the equipment downtime. This paper will focus on experimenting with buffer inventory levels and the capacity of a multi-state manufacturing network to increase the production throughput on a company that has 70,000 tons per year of capacity. However, due to the unavailability problem, the existing system capacity decreases to 62,175 tons per year. The simulation model is used to improve throughput by modeling the failure interruption and the buffer inventory logics during the production process.
Pengembangan Ekosistem Halal Skema Self-Declare pada Kantin Departemen Teknik Sistem dan Industri Institut Teknologi Sepuluh Nopember Surabaya Nurhadi Siswanto; Hafidz Ridho; Mar'atus Sholihah; Retno Widyaningrum; Atikah Aghdhi Pratiwi; Erwin Widodo
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v7i3.513

Abstract

Kebutuhan akan produk halal merupakan hal yang krusial di Indonesia mengingat Indonesia adalah negara dengan populasi umat muslim terbesar di dunia. ITS melalui Pusat Kajian Halal memiliki program pendampingan untuk memfasilitasi UMKM untuk mendapatkan sertifikat halal. Kegiatan pengabdian masyarakat ini merupakan bagian dari program tersebut dengan sasaran yaitu pelaku usaha pada kantin Departemen Teknik Sistem dan Industri ITS. Terdapat empat tahapan yang dilakukan dalam kegiatan pengabdian masyarakat ini, yaitu pelaksanaan pelatihan kader penggerak halal, pendampingan penyusunan sistem jaminan halal, bimbingan teknis pengajuan sertifikat halal, dan serah terima pemasangan plakat logo halal. Manfaat yang dihasilkan dari kegiatan ini yaitu meningkatnya kesadaran masyarakat mengenai pentingnya jaminan produk halal, sehingga program pemerintah dan Pusat Kajian Halal ITS untuk mendorong sertifikasi halal pada UMKM dapat terlaksana.
Co-Authors Atikah Aghdhi Pratiwi Hafidz Ridho Mar'atus Sholihah Moses Laksono Singgih Muhammad Rosiawan Nabila Yuraisyah Salsabila Nabila Yuraisyah Salsabila Nurhadi Siswanto Oryza Akbar Rochmadhan Oryza Akbar Rochmadhan Retno Widyaningrum Suparno Suparno Zabrina Masud Mangka