When it comes to crusher capacity for granite and repairing a used rock crusher, there are several factors to consider. Granite is a hard, abrasive material, so the crusher must be robust and capable of handling such material efficiently. Here’s a breakdown of the key points:
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Crusher Capacity for Granite
1. Type of Crusher:
– Jaw Crushers: Ideal for primary crushing of granite. Capacity depends on the size of the crusher and the feed opening.
– Cone Crushers: Suitable for secondary or tertiary crushing. They handle granite well but require proper maintenance due to abrasiveness.
– Impact Crushers: Can be used for granite but may wear faster due to the material’s hardness.
2. Capacity Factors:
– Feed size: Larger feed sizes reduce capacity.
– Hardness of granite: Granite is hard (Mohs scale 6-7), so crushing efficiency may be lower compared to softer materials.
– Crusher settings: Adjusting the closed-side setting (CSS) can optimize capacity.
3. Typical Capacities:
– Small jaw crushers: 1-5 tons per hour (TPH).
– Medium jaw crushers: 5-50 TPH.
– Cone crushers: 50-500 TPH, depending on size and model.
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Repairing a Used Rock Crusher
1. Common Issues:
– Wear on liners, jaws, or cones due to granite’s abrasiveness.
– Bearing failures from heavy loads or lack of lubrication.
– Cracks or damage in the frame or housing.
– Electrical or hydraulic system malfunctions.
2. Repair Steps:
– Inspect Wear Parts: Replace worn-out liners, jaws, or cones regularly to maintain efficiency.
– Check Bearings: Lubricate bearings properly and replace them if they show signs of wear or overheating.
– Frame Inspection: Look for cracks or structural damage; weld or reinforce as needed.
– Electrical/Hydraulic Systems: Test motors, pumps, and wiring; repair or replace faulty components.
3. Maintenance Tips:
– Regularly clean the crusher to remove dust and debris.
– Use high-quality replacement parts designed for granite crushing.
– Monitor performance metrics (e.g., throughput, power consumption) to detect issues early.
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