29/09/2025
Indonesia's coal output decline to idle thousands of heavy equipment
A projected 100-million-ton drop in Indonesia’s coal production in 2025 will render over 3,500 heavy equipment units idle, severely impacting mining operations and employment, according to Ardhi Ishak, Head of Industrial Relations at the Indonesian Mining Professionals Association (PERHAPI).
Ishak attributed the disruption to a significant reduction in overburden removal activities, which are directly linked to the lower production target. The Indonesian Coal Mining Association (APBI-ICMA) has revised its national coal output forecast, predicting a decline from 836 million tons in 2024 to approximately 750 million tons in 2025. The forecast aligns with monthly production trends, which have averaged in the low 60-million-ton range.
For every 100 million tons of coal production, 800 million bank cubic meters (bcm) of overburden are typically removed, assuming an average stripping ratio of 8:1. This requires 267 large-scale excavators, such as the Komatsu PC1250, running 6,000 hours annually at a productivity rate of 500 bcm/hour, supported by haul trucks, dozers, and graders.
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