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Three-ring superfine mill

Processing Capacity: 500-12000 kg/h

Feeding size: ≤20 mm

Applied material: calcite, chalk, limestone, dolomite, carbon black, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, rectorite, diatomite, barite, gypsum, alunite, g

Application field: building materials,chemical industry,metallurgy,pharmaceuticals,abrasives,etc.

Three-ring superfine mill


The three ring medium speed superfine grinding mill machine (calcite superfine mill, limestone superfine mill, calcium carbonate micro powder mill, talc micro powder mill, barite micro powder mill, gypsum micro powder mill, marble micro powder mill, feldspar micro powder mill, fluorite micro powder mill) is mainly used for ultra-fine powder processing of non flammable and explosive brittle materials with medium and low hardness and Mohs hardness ≤ 6, Such as calcite, chalk, limestone, dolomite, carbon black, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, rectorite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate rock, potassium ore, pumice and so on. The particle size of fine powder can be adjusted between 325-3000 mesh,and the output can reach 0.6-6.5 tons per hour.


Performance characteristics of three ring medium speed superfine mill

1. High efficiency and energy saving

In the case of the same product fineness and motor power, the output is more than twice that of jet mill, stirring mill, and ball mill.

2. Long service life of wearing parts

The grinding roller and grinding ring are forged with special materials, which greatly improves the utilization. In the case of the same fineness of materials and finished products, the service life is 2-5 times longer than the wear parts of impact crushers and turbo crushers, generally up to one year. When processing calcium carbonate and calcite, the service life can reach 2 -5 years.

3. High safety and reliability

Because there is no rolling bearing and no screw in the grinding chamber, there is no problem that the bearing and its sealing parts are vulnerable, and there is no problem that the screw is easy to loose and destroy the machine.

4. High product fineness

The fineness of HGM three ring medium speed superfine grinding mill can reach D97 ≤ 5 μ m at one time.

5. Environmental protection and cleaning

Using pulse dust collector to capture dust and muffler to reduce noise, it has the characteristics of environmental protection and cleaning.


Three ring medium speed superfine mill equipment composition

HGM three ring medium speed ultra-fine grinding mill is equipped with hammer crusher, bucket elevator, storage bin, vibrating feeder, main machine of micro mill, frequency conversion classifier, double cyclone dust collector, pulse dust removal system, high-pressure fan, air compressor and electrical control system.

Working principle of three ring medium speed superfine mill

When working, the main motor drives the spindle and turntable to rotate through the reducer, and the roller pin at the edge of the turntable drives dozens of grinding rolls to roll in the grinding ring raceway.

After being crushed into small particles by hammer crusher, the large materials are sent to the storage bin by the elevator, and then the materials are evenly sent to the bulk tray on the upper part of the rotary table through the vibrating feeder and inclined feeding pipe.

Under the action of centrifugal force, materials disperse to the periphery of the circle and fall into the raceway of the grinding ring, which is impacted, rolled and ground by the ring roller. After being processed into powder by the three-layer ring, the high-pressure fan sucks the external air into the machine by suction, and brings the crushed materials into the separator.


The rotating impeller in the separator makes the coarse material fall back to regrind. The fine powder meeting the requirements enters the cyclone dust collector with the air flow and is discharged by the discharge valve at the lower part. The airflow with a small amount of fine dust is purified by the pulse dust collector and discharged through the fan and muffler.

Technical data

Model HGM80 HGM90 HGM100 HGM100A HGM125
Average diameter(mm) 800 930 1035 1035 1300
Grinding roller 21 24-32 27 34-36 40-44
Ring road 3 3-4 3 4 4
Spindle speed(r/min) 230-240 200-220 180-200 180-200 135-155
Feed size(mm) ≤20 ≤20 ≤20 ≤20 ≤20
Finished size(mesh) 2500-325 2500-325
2500-325 2500-325 2500-325
Yield(kg/h) 500-4500 600-6500 700-7000 1000-8500 1500-12000
Dimensions(m) 10*2*5.5 11.9*2.7*5.8 14.5*3.8*6.3 14.5*3.8*6.3 14.5*3.8*6.3

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Please tell us your materials, capacity and finished product design, we can offer better service for you. Contact Email: shuguang_mill@163.com

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