Reliability-Based Preventive Maintenance Scheduling of a Multi-unit Injection Molding System: A Case Study
Published 2024-12-19
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Keywords
- Maintenance,
- Reliability,
- Availability,
- Injection mold,
- Preventive maintenance
How to Cite
Copyright (c) 2024 International Journal of Industrial Engineering and Management
This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
In industrial manufacturing, the paucity of an integrated approach for determining preventive maintenance intervals in multi-unit systems poses challenges. Achieving optimal system performance and reliability is crucial for productivity and profitability. This study proposes an integrative approach that optimizes preventive maintenance intervals for each mold unit within the multi-unit plastic injection molding system while considering reliability, availability, maintainability, and supportability (RAMS), an aspect previous studies have not considered. The objective is to enhance system reliability, reduce downtime, and improve overall performance. For the first time, the study concurrently explores reliability, availability, maintainability, and supportability analysis for an injection molding plant. The results of this investigation show that the RAMS analysis can be used to determine the prevention maintenance schedule of each subunit to achieve the desired plant reliability level. The study reveals that an 80% reliability level yields optimal preventive maintenance intervals.
Article history: Received (January 31, 2024); Revised (September 14, 2024); Accepted (October 8, 2024); Published online (December 19, 2024)