Operation & Maintenance Intelligence
How to achieve ultra-precise output grading with a 4-roll configuration?

Four-Roll Crusher
The HSM Integrated Four Roller Crusher excels in delivering a specific granularity range (0.1mm to 30mm) through its dual-chamber architecture. Fine-tuning the product size involves a coordinated two-step calibration process:
I. Coarse Tier Regulation (Upper Deck)
Adjusting the gap between the primary rollers dictates the material size entering the secondary zone. Use the integrated tensioning bolts or hydraulic rams to set the upper limit for pre-crushed ore.
II. Finishing Tier Calibration (Lower Deck)
The final particle size is refined here. By narrowing the clearance between the lower rollers, you increase the production of fine sands or powders, perfect for high-value industrial minerals.
III. Mechanical Locking (Shim System)
For long-term consistency, our shim-pack system allows you to lock the roller distance. Increasing shim thickness prevents “gap drift” caused by intense crushing forces, ensuring 24/7 uniform output.
💡
Operator Strategy: For plants processing multiple ores daily, HSM’s Smart PLC Hydraulic Control is recommended. It enables instantaneous gap modification via the digital interface—calibrating microns in seconds without halting the drive motor.
Need a specific tooth profile for specialized materials?






















