Optimasi Alokasi Material Untuk Efisiensi Waktu Order Picking Di Departemen Jasa Pelayanan Pabrik PT Pupuk Kujang

Rismaladewi, Emmilia Faudi (2025) Optimasi Alokasi Material Untuk Efisiensi Waktu Order Picking Di Departemen Jasa Pelayanan Pabrik PT Pupuk Kujang. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Order Picking (OP) berkontribusi signifikan terhadap total biaya operasional gudang, sehingga efisiensinya menjadi faktor krusial. Salah satu aspek yang memengaruhi proses ini adalah tata letak penyimpanan material, di mana penempatan yang kurang optimal dapat memperpanjang waktu OP dan menurunkan produktivitas. Departemen Jasa Pelayanan Pabrik PT Pupuk Kujang saat ini menerapkan random storage policy, namun kebijakan ini kurang sesuai karena departemen tidak memiliki warehouse management system (WMS) yang memadai untuk pencacatan lokasi dan jumlah stok material. Akibatnya proses pencarian dan pengambilan material menjadi tidak efisien. Untuk mengatasi masalah ini, Tugas Akhir ini mengoptimalkan penempatan material dengan menerapkan analisis FSN (Fast, Slow, Non-moving) berdasarkan Average Stay dan Consumption Rate. Setelah itu, material diklasifikasikan lebih lanjut berdasarkan jenisnya guna menyusun alokasi penyimpanan yang lebih terstruktur. Optimalisasi kemudian dilanjutkan dengan penerapan Mixed Integer Linear Programming (MILP) untuk merancang strategi penyimpanan yang bertujuan meminimalkan total waktu order picking. Tahapan optimalisasi dimulai dari proses zoning, yaitu menentukan rak penyimpanan berdasarkan kelompok jenis material. Selanjutnya dilakukan slotting, di mana setiap SKU dalam kelompok material tersebut ditempatkan secara spesifik pada slot rak yang sesuai. Hasil optimasi menunjukkan bahwa total waktu pengambilan material dapat dikurangi sebesar 29,75%. Efisiensi ini membuka peluang untuk strategi pricing yang lebih fleksibel.
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Order Picking (OP) contributes significantly to the total operational costs of a warehouse, making its efficiency a crucial factor. One aspect that affects this process is the material storage layout, where inefficient placement can extend Order Picking time and reduce productivity. Jasa Pelayanan Pabrik Department of PT Pupuk Kujang currently implements a random storage policy. However, this approach is less suitable because the department lacks an appropriate Warehouse Management System (WMS) to record material locations and stock quantities. As a result, the material search and retrieval process become inefficient. To address this issue, this final project optimizes material placement by applying FSN (Fast, Slow, Non-moving) analysis based on Average Stay and Consumption Rate. Then, materials are further classified based on their type to establish a more structured storage allocation. Furthermore, Mixed Integer Linear Programming (MILP) is applied to design a storage strategy that minimizes order picking time, which leads to improving warehouse operational efficiency. The optimization process begins with zoning, which involves assigning material type groups to specific racks. This is followed by slotting, in which individual SKUs within each material group are assigned to specific rack slots. The optimization results show a 29,75% reduction in total material picking time. This efficiency also opens up opportunities for more flexible pricing strategies.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Gudang, Storage Assignment, Order Picking, FSN Analysis, Mixed Integer Linear Programming, Warehouse, Storage Assignment, Order Picking, FSN Analysis, Mixed Integer Linear Programming
Subjects:	H Social Sciences > HF Commerce > HF5485 Warehouses--Management
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26201-(S1) Undergraduate Thesis
Depositing User:	Emmilia Faudi Rismaladewi
Date Deposited:	22 Jul 2025 08:35
Last Modified:	22 Jul 2025 08:35
URI:	http://repository.its.ac.id/id/eprint/120425

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