Redefining Comminution
- Primary Grinding
- Secondary Grinding
Gyratory Roller Solutions Pty Ltd (GRolls®) is a next-generation gyratory rolls crusher designed for final particle sizing prior to downstream processing.
Redefining Comminution
- Primary Grinding
- Secondary Grinding
Gyratory Roller Solutions Pty Ltd (GRolls®) is a next-generation gyratory rolls crusher designed for final particle sizing prior to downstream processing.
Engineered for step-change
flowsheet performance
Dry & Wet Feed
New and Existing Flowsheets
Modular, Mobile or Fixed
No Grinding Media
Reduced energy consumption
Feed material flexibility
Reduced recirculation loads
Enhanced early gangue rejection
GRolls®
GRolls® is a compression-based comminution technology that applies high frequency gyrating compression, tension and shear forces to achieve efficient particle breakage for fines generation.
Compression Breakage
Gyrating compression selectively targets coarse particles through controlled hammering action, producing efficient size reduction while minimising unnecessary overgrinding of finer material. The repeated high-frequency compression pulses fracture larger particles along natural weakness planes, improving breakage efficiency and particle size consistency.
Shear Breakage
Shearing forces generated between the corrugated rolls tear and fracture particles through differential surface motion and concentrated contact stresses, promoting efficient fine particle generation. The corrugated profile enhances particle gripping and shear transfer, enabling controlled breakage and improved liberation while reducing excessive energy loss.
Preferential Breakage
Preferential breakage occurs along natural particle weakness planes and grain boundaries, enabling selective fragmentation with reduced excessive fines generation. This targeted breakage mechanism promotes efficient liberation while producing steeper and more controlled particle size distributions ideal for early gangue rejection.
GRolls® in action
Watch GRolls® in action as our gyratory rolls crusher demonstrates its versatility across both dry and wet grinding applications. The video showcases the machine’s ability to handle diverse material streams and processing conditions, delivering consistent compression and shear breakage.
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