Journal of Industial Engineering and Technology
Vol. 6 No. 2 (2026): 30 Juni 2026

Improving Stock Availability Accuracy Using Min-Max Method for Material Requirement Planning (MRP) Item Bolt Set at PT Lion Metal Works

Silvi Istiqomah (Universitas Telkom)
Fatnika Fauziyah (BeeGrow, PT Multi Beneficia Grup)
Ade Fathur Noviandre Majid (BeeGrow, PT Multi Beneficia Grup)
Kamelia Salsabilla (BeeGrow, PT Multi Beneficia Grup)
Perdana Suteja (Teknik Industri, Universitas Negeri Yogyakarta)



Article Info

Publish Date
30 Jun 2026

Abstract

PT Lion Metal Works faces frequent raw material shortages and surpluses, disrupting production and emphasizing the need for better inventory management. This study aims to improve stock accuracy for bolt set items using the Min-Max method. The research involved analyzing historical data and forecasting demand to establish reorder points and optimal inventory levels. Data collection techniques included historical data analysis and statistical demand forecasting. The implementation of the Min-Max method increased stock accuracy from 87% to 90%. Prior to this method, inventory management experienced frequent discrepancies and inefficiencies. Post-implementation, these issues were significantly reduced, resulting in more stable inventory levels. Key factors in this improvement included precise demand forecasting, efficient procurement lead time, and effective safety stock management. The study confirms the Min-Max method's effectiveness in optimizing inventory management, cutting costs, and ensuring smoother production. Benefits of the study include enhanced stock accuracy and minimized production disruptions. Recommendations for further improvement involve developing advanced information systems, regular employee training, and better supplier relationships.

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Journal Info

Abbrev

jointtech

Publisher

Subject

Decision Sciences, Operations Research & Management Industrial & Manufacturing Engineering

Description

Journal of Industrial Engineering and Technology adalah jurnal ilmiah peer-reviewed dan open access yang bertujuan untuk mendiseminasi/menyebarluaskan perkembangan technology penelitian di bidang keilmuan Teknik Industri. Ruang Lingkup Journal of Industrial Engineering and Technology adalah mencakup ...