Effectiveness Analysis Of A Centrifugal Pump In The Wax Ester Preparation Process Of Fatty Alcohol Production Using Overall Equipment Effectiveness
Abstrak
The reliability of production machinery determines process continuity, operational efficiency, and product quality in the oleochemical industry, particularly in the wax ester preparation stage of fatty alcohol production. This study analyzes the effectiveness of a centrifugal pump in the wax ester preparation unit using Overall Equipment Effectiveness (OEE) and identifies the causes of low machine effectiveness using a fishbone diagram. Data were collected from machine operating records for August 2025–January 2026, including machine working time, planned and unplanned downtime, and production volume. The results show an average availability rate of 91.99%, a performance rate of 84.61%, and a quality rate of 100%, yielding an OEE of 77.83%, which is below the world-class standard of the Japan Institute of Plant Maintenance (JIPM) of 85%. Planned downtime (226 hours) reduces loading time and is not a direct cause of the low performance rate, whereas failure and repair time (310 hours) lowered availability in three of the six months. The fishbone analysis identified five main groups of causes, namely man, method, environment, material, and machine, with delayed fault handling, inappropriate maintenance scheduling, and machine condition deterioration as the prominent causes. The study recommends strengthening preventive maintenance and checking component service life to improve the reliability of centrifugal pumps in fatty alcohol production.
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