ANALISIS TERHAMBATNYA LOADING BATU BARA AKIBAT KERUSAKAN CONVEYOR YANG BERDAMPAK PADA KINERJA PEMUATAN DI PT. INDOMINCO MANDIRI BONTANG

Abstract

Conveyor belts are the primary means of coal distribution from stockpiles to shiploaders at PT. Indominco Mandiri Bontang. Repeated conveyor failures hamper the coal loading process and reduce loading performance. This study aims to analyze the causes of conveyor failures, factors contributing to long repair times, and the impact of conveyor downtime on coal loading performance. The research method used was descriptive qualitative through observation, interviews, documentation, and literature review. The results indicate that conveyor failures are caused by component wear, high operational intensity, and suboptimal preventive maintenance implementation. Long repair times are influenced by limited technicians, spare part availability, and the complexity of the conveyor system. The resulting impacts include increased downtime of up to 8 hours, a decrease in the loading rate from the target of 4,000 tons/hour to 3,000 tons/hour, and decreased loading operational efficiency. Possible improvements include increasing preventive maintenance, ensuring spare part availability, improving human resource competency, and regularly monitoring conveyor conditions.