Product Profile

Ultrafine Mill:

Models of Ultrafine Mill: HGM80, HGM90, HGM100, HGM125and HGM1680L

finished production fineness: 300-3000mesh(5-74 micron)

the capacity (ton/hour) ranges: 0.5 to 45 ton per hour

Ultrafine Mill is a device that breaks solid materials into powder by grinding, Such comminution is an important unit operation in many processes. It is usually used in Metallurgy, building materials, chemical and mine industries.

About The HGM Grinding Mill:

Micro powder grinding mill is designed by our R&D department on the basis of multiple innovation and testing. It has been proved by thousands of customers that our machine has outstanding features, stable quality, easy operation and maintenance.

It is the ideal equipment for the in producing fine and superfine powder of non-inflammable, non-explosive and brittle materials with Moh's hardness under six, such as calcite, chalk, limestone, dolomite, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite and vermiculite, etc over 100 kinds materials.

Working Principle

When the grinding mill is at work, the main bearing and each dial are driven by electromotor of main equipment 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 where the materials are repeatedly pressed, crushed and grinded by the rollers. Then the materials fall into multiple layers and to be crushed and ground continuously to micro powder.

The high-pressure air blower constantly inhales air within the grinding mill and, in turn, the airflow with crushed materials are brought to the 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, and clings to the surface of the filter bags. At the same time, the fine powders clinging to the surface fall down by the sudden vibration of the filter bags, which is caused by the instantly ejected high-pressure gas controlled by the pulse valve. The materials from the above two lots are sent by the conveyor at the bottom to get finished powders packed. In addition, filtered clean air will be emitted from the air outlet of muffler in the end.

Processing Technology

HGM series micro powder grinding mill mainly consist of main unit, classifier, powder collector, dust cleaner,
blower, muffler, sound-proof room, crusher, bucket elevator, storage hopper, feeding part, air compressor, and thehe
pneumatic conveying system. The processing line can finish the grinding and collecting working completely.

The small-middle scare grinding mill

The HGM80, 90, 100 model is with one set of cyclone, bag filter,blower which makes sure for the final powder fineness.

The large scare grinding mill

The HGM125, 1680 model is with two sets of cyclone, bag filter, blower. Which is for the working efficiency to get the large capacity.

Product Advantage

Under the same finished final size and the same motor power, the capacity of micro powder grinding mill is twice as much as jet mill, mixing grinder and ball mill, and energy consumption decreased 30%.

The ring and roller are forged by special material with high utilization.Under the same grinding material and finish special size, the lifecycle of spare parts is about one year, which is 2-3 times longer than impact mill or turbo mill. Furthermore, the lifetime can reach 2-5 years for grinding calcite carbonate.

As no rolling bearings or screws in grinding cavity, there are no problems caused by bolts shedding or rapid wear of bearings and seal components.

The final fineness of the grinding materials can be adjusted between 325 meshes and 2500 mesh (47-5 micron), and the product fineness can reach D97 ≤5μm.

Technical Parameter

Model HGM80 HGM90 HGM100 HGM100A HGM125 HGM1680
Ring Diameter(mm) 800 930 1035 1035 1300 1680
Ring Number(layer) 3 3-4 3 4 4 4
Roller Number(piece) 21 24-32 27 34-36 40-44 30-40
Main Shaft Speed(r.p.m.) 230-240 200-220 180-200 180-200 135-155 120-130
Input Size(mm) ≤20 ≤20 ≤20 ≤20 ≤20 ≤20
Finished Size(μm/mesh) 5-47 5-47 5-47 5-47 5-47 100-9
(325-2500) (325-2500) (325-2500) (325-2500) (325-2500) (150-1500)
Capacity(t/h) 0.5-4.5 0.6-6.5 0.7-7 0.8-8.5 0.9-12 3.8-30
Overall Dimension(L*W*H, m) 13.9x4x6.2 14.7x4.8x7.2 18x4.6x8.6 18x4.6x8.6 14x9x10.25 26.3*7.5*11.9
Motor Power(KW) 145-165 175-192 263 263 378-408 550-610

Certification and patent

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