Primary gyratory crushers are easily the hardest working piece of fixed plant on a mine site. The gateway between extraction and processing, they bear the brunt of continuous operation, high feed volumes, and are subject to rock particles of extreme size variation and hardness. It is therefore vital that they are kept in top condition, maintained regularly and their performance optimized in sync with the rest of the crushing and screening circuit. Poor maintenance can result in unplanned shutdowns for repairs, premature failures and equipment damage all of which can be costly and can cause reduced throughput. A primary crusher that is underperforming will also impact upon every other piece of downstream equipment, quickly causing a bottleneck and, potentially, a source of lost revenue.
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