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Menampilkan 1–4 dari 4 artikel
Integrating Lean Warehousing and Systematic Analysis to Minimize Waste in Finished Product Storage: A Case Study and Generalizable Improvement Framework
Qurtubi
; Haswika
; Purnomo, Hari
; Kien, Pham Trung
Advance Sustainable Science, Engineering and Technology
Vol 8
, No 1
(2026)
Efficient warehouse management is critical for make-to-order production systems. This study investigates waste reduction in a metal casting company’s finished-product warehouse by applying Lean Warehousing principles. Using time-motion studies, Value Stream Mapping (VSM), Pareto diagrams, and fishbone diagrams, the research analyzed 13 workstations and identified five primary areas of waste. Simulation results demonstrated a significant cycle time reduction from 2,559 to 2,128 seconds, alongside...
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DOI
1 Sitasi
Assessment of Occupational Noise Exposure in Industrial Environments: A Case Study in Metal Casting
Dwiandra, Annisa Restia
; Qurtubi
; Haswika, Haswika
; Sugarindra, Muchamad
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 2
(2025)
Good work environment conditions can affect the increase in worker productivity. One of the work environment factors that needs to be considered is distraction. Noise problems not only interfere with concentration but can also damage workers' hearing and reduce overall work safety. Therefore, this study aims to analyze the noise level in the work area in the production process of a company engaged in the metal casting industry and provide recommendations that can reduce the negative impact on th...
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Optimizing Inventory Control Using Min-Max Method for Sustainable Manufacturing Process
Hermawan, Prayoga Prima
; Qurtubi
; Haswika
; Sugarindra, Muchamad
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 1
(2025)
Inventory plays an important role in a company's production process, especially in the sustainable manufacturing industry. The inventory of raw materials such as rayon, polyester, and cotton is an essential element that needs to be controlled to maintain a smooth production process. This research aims to plan and control raw materials through the min-max method, with a focus on evaluating inventory control to identify and overcome existing problems in the raw material warehouse at a yarn and tex...
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3 Sitasi
Control of ABC Pen Production Raw Materials Using the Material Requirement Planning to Minimize Inventory
Utami, Melly Herliyati
; Qurtubi
; Setiawan, Danang
; Maghfiroh, Meilinda F. N.
Advance Sustainable Science, Engineering and Technology
Vol 6
, No 4
(2024)
This study addresses the issue of controlling the inventory of raw materials for pen production at PT. XYZ uses Material Requirement Planning (MRP) to minimize excess inventory. The MRP calculates net requirements, planned receipts, planned order releases, and projected on-hand inventory based on estimated demand, product structure, lot size, lead time, and safety stock. The results categorize 20 raw material components for ballpoint pen products into five levels, determining the optimal quanti...
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2 Sitasi