HCH Ring Roller Ultra-fine Grinding Mill Overview
The HCH ring roller ultra-fine grinding mill is the flagship machine for micron-level powder production, delivering finished fineness adjustable from 325 to 2500 mesh. Using high-pressure ring-and-roller grinding combined with a precision air classifier, it produces extremely fine, uniform powders that meet the demanding specifications of premium downstream products.
High wear-resistant grinding rollers and rings extend service life, while automatic PLC control ensures consistent operation with minimal operator input. The mill is designed for energy efficiency — high output per kWh compared to conventional ball mill and jet mill circuits.
Key Features
- Finished fineness adjustable: 325-2500 mesh — micron-level products
- High efficiency, energy-saving — low power consumption per ton
- High wear-resistant grinding roller and ring — long service life
- Automatic PLC control — consistent, unattended operation
- Precision air classification — uniform particle size distribution
Typical Applications
The HCH ultrafine mill produces the fine fillers and functional powders used in coatings, paper, plastics, rubber, and chemical industries. Typical products include 600-2500 mesh limestone powder for paper coating, talc powder for plastics, barite powder for paint, and ultrafine calcium carbonate for adhesives and sealants.
Operation Guidance
Set the classifier speed according to the target D97 fineness — micron-level products require high classifier speeds and reduced feed rates. Feed moisture should be below 1-2% to prevent ring and roller surface pick-up. Schedule roller and ring inspection every 500-1000 operating hours, and replace when the surface profile degrades.
FAQ
Q: How fine can it grind? A: Up to 2500 mesh (approximately D97 below 5 microns) with the right feed and settings. Q: What is the difference from the HCH fine grinder? A: The ultrafine variant achieves micron-level fineness with higher-precision classification and a more powerful grinding zone. Q: Why is particle shape uniform? A: The combination of laminating ring-and-roller grinding and dynamic air classification produces a narrow size distribution.
