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All Journal Kohesi: Jurnal Sains dan Teknologi
Febrianto Maulana, Ferdy
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Energy Engineering Other

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Penerapan Metode Desain Tata Letak Gudang dan Klasifikasi ABC untuk Mengoptimalkan Penyimpanan Barang Part Assembly Panel Surya di PT. XYZ Febrianto Maulana, Ferdy; Nurcahya Hidayat, Fauziah; Fauzi, Muchammad
Kohesi: Jurnal Sains dan Teknologi Vol. 6 No. 9 (2025): Kohesi: Jurnal Sains dan Teknologi
Publisher : CV SWA Anugerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3785/kohesi.v6i9.10322

Abstract

Efficient product design is one of the most important factors in improving the operational performance of a company, especially in the manufacturing sector. The purpose of this study is to optimize the layout of the solar panel assembly warehouse at PT. XYZ using two methods: the ABC classification method and the warehouse layout design method. To minimize the time and cost involved in the goods development process, the warehouse layout design method is used to determine the ideal placement of goods in the warehouse. In contrast, the ABC classification is used to group goods according to their value and frequency of use in order to prioritize the delivery of goods with high Orders/days and to determine the high value of the goods in question. The results of this study indicate that the application of both methods can improve the efficiency of storage space and accelerate the existing barangay development process, which has a significant impact on reducing operational costs and increasing productivity. This study offers strategic recommendations to improve the warehouse layout design of PT. XYZ in order to improve operational efficiency and effectiveness.
PERAMALAN PRODUKSI SPARE PART DI PT. XYZ DENGAN MENGGUNAKAN METODE DEKOMPOSISI Tandiansyah, Tantan; Febrianto Maulana, Ferdy; Ihsan, Tiaradia
Kohesi: Jurnal Sains dan Teknologi Vol. 6 No. 10 (2025): Kohesi: Jurnal Sains dan Teknologi
Publisher : CV SWA Anugerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3785/kohesi.v6i11.10449

Abstract

The manufacturing industry faces major challenges in managing often uncertain demand fluctuations. This applies to PT. XYZ, a company operated in the production of automotive spare parts. Uncertainty in demand results in the risk of overproduction which increases storage costs or underproduction which has the potential to reduce customer confidence. The aim of this research is to predict production demand implementing the decomposition method, which separates historical data into trend, seasonal, cyclical and random components. This method is able to provide more accurate predictions by utilizing historical data for the last three years. The research results show that there are seasonal trends that influence inventory levels, with peak inventories usually occurring in K1 or K3, while K4 tends to be the period with the lowest inventories. With this method, PT. XYZ can increase production efficiency, minimize operational costs, and optimize production capacity according to market needs. Based on inventory estimates for 2024 and 2025, a consistent fluctuation pattern can be seen every quarter. In 2024, the first quarter (K1) is estimated to have inventory of 23,107 units, which then decreases slightly in K2 to 22,058 units. Inventory increased again in K3 to 23,210 units, before experiencing a significant decline in K4 of 21,602 units. This pattern repeats in 2025, with K1 showing an increase to 24,381 units, followed by a decrease in K2 of 23,258 units. Inventory rose again in K3 to 24,455 units and fell again in K4 by 22,746 units.
Co-Authors Muchammad Fauzi Nurcahya Hidayat, Fauziah Tandiansyah, Tantan Tiaradia Ihsan