High Pressure Grinding Rolls (HPGRs)have been applied in mineral processing plants, largely in iron ore and diamond treatment. In these industries, the application of HPGR ranges from coarse grinding, e.g. the grinding of 65mm (2.5”)size excess pebbles in circulation loops, to final grinding of <100μm material to high Blaine values in the preparation of pellet feed.
HFKG High Pressure Grinding Rolls (HPGR) offers several benefits to the minerals industry, such as:
• Low energy consumption, 0.8-3.0kWh/t
• Ability to process moist ores, up to 10%
• Enhanced downstream recovery and  grind ability
• Improved grade of downstream products
• Low maintenance requirements
• Low space requirements
• Low vibration and noise
• High availability, >95%
• High wear surface life, 8000-36000 hrs