Closed system High safety and reliability Ultra-fine powder mill
Ultra-fine powder mill is suitable for the super fine grinding of all kinds of crisp materials whose Moh's hardness is blow 7, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, alay, talc, fluorite, white mud, mica, refractory material, glass, total about 100 kinds of materials.

Working Principle
When the grinding mill is at work, the main bearing and each dial are driven by electromotor through reducer, and all the grinding rollers are rolling in the ring channels driving by dial through plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall down into the grinding chambers. The high-pressure air blower constantly inhales air, airflow with crushed materials are brought to classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground while the qualified particle size mixed with air will go into the cyclone powder collector. Most of the qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The materials from the above two lots are sent by the conveyor to get finished powders packed. In addition, filtered clean air will be emitted from muffler in the end.

Advantages of Ultra-fine powder mill
1.The yield is 40% higher than other mills.
2.High utilization rate of Wear material:2-5years.
3.Adjustable particle size:325-3000mesh.
4.High safety and reliability. The design of the mill is rigorous, so no screw loosening to damage the machine.
5.Closed system, so it is the green and ideal equipment for environment protection.

Technology Data of Ultra-fine powder mill
Model | HGM80 | HGM90 | HGM100 | HGM125 | HGM1680 |
Ring Diameter(mm) | 800 | 900 | 1000 | 1250 | 1680 |
Ring Number (PCS) | 3 | 3-4 | 4 | 4 | 4 |
Roller Number(PCS) | 18-21 | 24-29 | 28-36 | 30-44 | 30-40 |
Main Shaft Speed (r. p. min) | 230-240 | 200-220 | 180-200 | 135-155 | 120-130 |
Input Size (mm) | ≤10 | ≤10 | ≤15 | ≤15 | ≤20 |
Finished Size (um/mesh) | 74-5 (200-2500) | 74-5 (200-2500) | 74-5 (200-2500) | 100-6 (150-2000) | 100-9 (150-1500) |
Capacity (t/h) | 0.4-4.5 | 0.6-6.5 | 1-9 | 2-16 | 3.8-30 |
Outlet Size L*W*H (m) | 13.9*4*6.2 | 14.7*4.8*7.2 | 18*4.6*8.6 | 14*9*10.25 | 26.3*7.5*11.9 |