HGM80 ultrafine stone grinding mill, ultrafine stone grinder mill is the new type mining equipment for making micro powders, fine powders，which is widely applied in the industries of metallurgy, mining, chemistry, cement, construction, refractory materials, ceramics, and so on.
Production Line Configuration of HGM 80 ultrafine stone grinding mill, ultrafine grinder mill:
The whole set HGM80 ultrafine stone grinding mill, ultrafine grinder mill (calcite carbonate grinding mill, chalk grinding mill, lime ultrafine grinding mill, dolomite grinding mill, kaolin grinding mill, bentonite grinding mill , talc grinding mill, mica grinding mill, magnesite grinding mill, pyrophyllite grinding mill, ceyssatite grinding mill, barite grinding mill, gypsum grinding mill, alunite grinding mill, granite grinding mill, fluorite grinding mill, phosphate rock grinding mill, kalium ore grinding mill , float ultrafine grinding mill) consists of hammer crusher, bucket elevator, storage hopper, vibrating feeder, main unit, inverter classifier, cyclone collector, pulse deduster system, high pressure positive blower, air compressors and electrical control systems.
Working Principle of HGM80 ultrafine stone grinding mill, ultrafine stone grinder mill:
The main bearing and each dial are driven by electromotor of main machine through reducer, and numbers of rollers, which are rolling in the ring, are driven by dial through plunger. After crushed by hammer crusher, the big materials become small ones and are sent to storage hopper by elevator and further sent to the middle of first dial evenly by the electromagnetic vibrating feeder and feeding pipe. The materials will be driven to the edge of dial by centrifugal force and fall down into the ring, crushed and grinded by roller, and become powder after production of three rings. The high pressure centrifugal blower will inhale air from outside and blow the crushed materials to classifier. The rotating turbo in the powder concentrator will make the coarse material return to the mill and reground, while the fineness will mix with the air and go into the cyclone and be discharged in the discharge bin, which is at the bottom of it. The air, which mixed with very little fineness, will be purified by impulse duster and discharged by blower and muffler.

Performance and features of HGM80 ultrafine grinding mill, ultrafine stone grinder mill:
1.    High efficiency
Under the same final size and power, the product capacity of ultrafine mill is twice than jet mill and agitation mill.
2.    Longer lifetime of spare parts
The roller and ring are made of special material, which improve the grinding efficiency a lot. For same material and final size, the lifetime of its wearing parts can reach to more than one year, about 2-5 times as long as that of vertical shaft impact crusher and turbo-mill. Especially when handling calcium carbonate and calcite, the lifetime can reach 2-5 years.
3.    High safety and reliability:
There are no rolling bearings and bolts in grinding cavity, so problems caused by bolts shedding or wear of bearings and seal components will never happen.
4.    High fineness of products
The product fineness can reach D97<=5micron.
5.    Environment friendly
The application of pulse dust collector and muffler reduce the pollution and noise of the dust, which has reached national environment protection standard.