HGM series three-ring medium speed micro-powder mill is widely used in calcite, chalk, limestone, dolomite, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, tablite, ceyssatite, barite, gypsum, alunite, black lead, fluorite, phosphate rock, potassium ore, floatstone etc. It can produce powde of various non-flammable and non-explosive mineral materials with Mohs hardness below 9 and humidity below 6%. The size of final powder can be adjusted between 325-2500 mesh.

    Motor drives main shaft and every turnplate through reducer. The reducer drives dozens of rollers to rotate against race way of ring through pin. Material falls to circle under the centrifugal force and comes down to raceway of ring to be crushed into powder. After ground in the first race way, the material goes to the second and third turnplate. Blower inhales external air into the mill and carries the powder after third turnplate into powder-separator. Turbine in the separator makes coarse powder drop down and ground again, and the final powder goes into cyclone powder collector together with air current and is dischargee from outlet valve, at the same time, air current with a little dust goes out through blower and muffler after purified by filter.

1. The cost of investment is low. In the same level degree of fineness situation, investment is few compared to the jet mill, the cost is low, the recycling cycle is short.

2. Three-Ring & Medium-Speed MicroPowder Mill has high efficiency and low cost. Its capacity is raised by 45% compared with airflow mill and mix mill on the condition that the materials, the drive and the fineness of the final powder are the same.

3. Vulnerable loses is low, all vulnerable uses the domestic and foreign high quality anti-friction materials, the vulnerable service life is longer than the ordinary pulverizer equipment,generally may above one year

4. There is no rolling bearing and screw in the grinding cavity, so as to avoid the damage to the machine caused by tear & wear of bearing and seals and the looseness of screws.

5.The fineness of powder can reach 5μm with d97 once.

6 No pollution.it uses the highly effective pulse dust remover, in the complete process there is no pollution, it disposes the damper and the deafen room which can reduce the noise.we produce completely according to the national environmental protection standard, and it plays an important role in environmental protection.

7. The price is only one eighth of that of air current mill, under the same capacity and same size of final product, while its application range is larger than air current mill.

8. The pressure from rollers to materials is increased by 800-1200Kg with the function of high pressure spring, and the power consumption is one third of air current mill.

9. The feeding size is big, and the size of final product can reach 6.5um super fine powder directly.

10. The eclipsedform multipole seal device keeps the mills in good airproof condition. 11.Non-bearings and non-bolt in the grinding chamber. Because of this, these questions destroying the machines can never exist for bearing, sealing element or the bolts loose.