Double Roll Crusher Engineered for Abrasive Hard Rock

Soft limestone is forgiving. Granite, basalt and iron ore are not. This 60-100 TPH double roll mining crusher is configured for abrasive, high-compressive-strength material, combining a wear-resistant crushing chamber with a frame and drive train that hold alignment under continuous heavy load. The result is a stable output size and a predictable wear cost per ton.

Wear-Resistant Crushing Chamber

The roller shells are the parts that decide the cost of ownership. Our shells are cast in high manganese steel Mn13 and heat treated to work-harden under impact, so the surface hardness rises as the material is crushed instead of polishing down.

• Mn13 roller shell — work hardening surface, HRC 45-52 after service
• High chrome option — Cr26 shell for extremely abrasive quartz and iron ore
• Replaceable shell segments — damaged section changed without scrapping the whole roller
• Hardened gear set — 42CrMo forged gears with corrected tooth profile
• Sealed bearing group — labyrinth seal keeps dust out of the bearing housing

Hard Rock Performance

Machine Specification

Built to Stay Aligned Under Load

Hard rock punishes a loose frame. The body is welded from thick steel plate, stress relieved after welding and machined in one setup so the bearing seats and gear centres stay concentric. Hydraulic gap adjustment allows the output size to be changed in minutes, and the hydraulic release protects the rollers if uncrushable metal enters the chamber.

• Stress-relieved frame with machined bearing seats
• Hydraulic gap adjustment and overload release
• Dynamic balancing and no-load running test before shipment
• Complete traceability records for every unit

Service and Spare Parts

Wear parts for this model are kept in stock, including Mn13 and Cr26 roller shells, bearings, seals and gear sets. Our team supports installation, operator training and remote troubleshooting, and provides a wear inspection schedule based on your actual feed material so replacements are planned rather than emergency purchases.

Send us your material type, feed size and target output, and we will confirm the shell material, motor configuration and delivery schedule for your project.