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All Journal Jurnal Teknik dan Science (JTS) Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri
Maulida Boru Butar Butar
Universitas Gunadarma
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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PENGUKURAN KINERJA RANTAI PASOK BALIK: STUDI KASUS PERUSAHAAN DAUR ULANG ALAT KOMUNIKASI X Maulida Boru Butar Butar; Stephanus Liwun Bera Liwun
Jurnal Teknik dan Science Vol. 1 No. 3 (2022): Oktober : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v1i3.442

Abstract

The supply chain performance, as measured by observing the product return process that occurs at company X, will be presented in this paper. Product return is one of the things that encourages the use of a reverse supply chain in a company. The company must handle returned products from end users so that the returned products received can be profitable. The existing general model is used to examine the possibility of re-manufacturing processes in company X's existing reverse supply chain. The process model of the re-product is investigated and observed. Case studies on small and medium enterprises engaged in recycling electronic products already have a back supply chain process. A general model of the return supply chain at company X will be created, and a mathematical model based on the general model will be proposed to evaluate the performance of the return supply chain. The costs for product returns, when low and high, will be compared as a reference for the company. With the existence of a supply chain model of the processes that return products go through, companies can begin to measure the performance of the supply chain processes and evaluate this process as a way to gain benefits for the company.
Pengembangan Model Sistem Dinamis Suppy Chain di PT XYZ Muhammad Dwiyanto Saputro; Maulida Boru Butar Butar
Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Vol. 2 No. 3 (2024): September : Manufaktur : Publikasi Sub Rumpun Ilmu Keteknikan Industri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/manufaktur.v2i3.500

Abstract

PT.XYZ is an automotive company that has been operational since 1970, with over 400 suppliers for key components such as Stoper A and Stoper B. Annually, Stoper A sells 151,000 units (valued at IDR 4.077 billion), while Stoper B reaches 300,000 units (valued at IDR 8.100 billion). This research focuses on analyzing and optimizing the supply chain for these components, using sales data from January to December 2022. The goal is to create stock and flow diagrams, analyze the supply chain system modeling, and propose optimal scenarios for demand fulfillment. The modeling results indicate that a strategy of adding a 20% safety stock to the average sales is highly effective in preventing lost sales without burdening suppliers with overtime. However, the potential for overstock needs to be monitored. Based on the analysis, the second scenario proposing the addition of safety stock is recommended due to its effectiveness in meeting demand and efficiently managing inventory. This scenario is deemed most suitable for PT. XYZ in maintaining a balanced supply without unnecessary surplus.
Co-Authors Muhammad Dwiyanto Saputro Stephanus Liwun Bera Liwun