Dry grinding mill for superfine products
In applications requiring the ultrafine grinding of dry materials, achieving high fineness with minimal energy use is crucial. This is often a challenge in industries like ceramics and minerals, where particle size reduction to sub-2 micron levels is necessary.
Achieve sub-2 micron fineness
The ATR (Dry grinding) from Hosokawa Alpine is a dry media mill designed for superfine products with finenesses to approximately 80% <2µm. This vertical agitated media mill features a cylindrical grinding chamber filled with grinding beads, where small feed particles, not exceeding 100 µm, are introduced. The agitator shaft, equipped with arms, rotates at peripheral speeds of 2.5 – 3 m/s, transmitting energy mainly through friction. This process ensures high capacity relative to the approximately 200 kW/m³ bead volume. The mill operates in circuit mode with Hosokawa Alpine Turboplex ultrafine classifiers. Featuring a double-walled mill housing for water cooling and a design that minimizes iron contamination, it is suitable for sensitive applications. The ATR is ideal for processing mineral fillers, glazing raw materials, and non-mineral hard materials such as limestone, quartz, zircon sand, and talc.
Benefits
- Produces highly fine particles up to 90% <2 µm
- Optimized energy utilization with low peripheral speed
- Minimized wear and low operating costs
- Compact design with high throughput capacity
- Iron-free grinding ensures high product whiteness