Repairing a limestone impact crusher in India involves addressing common wear and tear issues, sourcing quality spare parts, and ensuring proper maintenance to extend the equipment’s lifespan. Here’s a structured guide to help you with the repair process:
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1. Common Issues in Limestone Impact Crushers
– Wear of Blow Bars/Hammers: Due to abrasion from crushing limestone.
– Rotor Damage: Caused by excessive vibration or unbreakable material.
– Bearing Failures: Due to dust ingress or lack of lubrication.
– Cracked Housing/Frames: From fatigue or overloading.
– Belt/Pulley Misalignment: Leading to inefficient operation.
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2. Steps for Repair & Maintenance
# A. Inspection & Diagnosis
– Check blow bars/hammers for wear (replace if worn beyond 30–40%).
– Inspect rotor balance and surface for cracks or deformation.
– Examine bearings for overheating or noise (replace if damaged).
– Check belts, pulleys, and alignment.
# B. Spare Parts Replacement
– Blow Bars/Hammers: Use high-chrome or manganese steel for durability.
– Bearings: Opt for sealed, high-quality bearings (e.g., SKF, FAG).
– Rotor Repair: Weld cracks or rebalance if necessary.
– Liners/Impact Plates: Replace worn-out protective liners.
# C. Lubrication & Sealing
– Use high-temperature grease for bearings.
– Ensure dust seals are intact to prevent contamination.
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# D. Alignment & Calibration
– Check motor and crusher alignment using laser tools.
– Adjust belt tension to avoid slippage.
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3. Where to Source Spare Parts in India?
– OEM Suppliers: Contact the original manufacturer (e.g., Metso, Sandvik, Terex).
– Local Manufacturers: Companies like Propel Industries, Puzzolana, or L&T Construction.
– Marketplaces: Online platforms like IndiaMART, TradeIndia, or local industrial markets (e.g., Delhi, Mumbai, Chennai).
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4. Cost Considerations
– Blow bars: ₹10,000–₹50,000 per set (depending on size/material).
– Bearings: ₹5,000–₹20,000