The HGM micro powder grinding mill is designed to grind materials into fine powders between 325 mesh and 2500 mesh in size. It has a maximum feeding size of 20mm and can grind over 100 types of materials, producing between 0.5 and 30 tons per hour. The mill uses rolling and crushing to grind materials into fine powders efficiently with low energy use.

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GRINDING MILL
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Raw materials: calcite, chalk, limestone, dolomite, kaolin, gypsum, and talc etc, totally more than 100 kinds of
Capacity: 0.5-30t/h
Max feeding size: 20mm
Application: mainly applied to grind non-inflammable, non-explosive and brittle materials with Mohs’ hard
(/uploads/allimg/160224/1-1602241105190-L.jpg)
HGM Mill
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Models: HGM80, HGM90, HGM100, HGM100A, HGM125 and HGM1680
Power: 123-344.4 kw
Finished size: 325~3000 meshes, 5-47 micron
HGM Micro Powder Grinding 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.The purpose of the micro powder grinding millis for super-fine grinding materials with hardness less than 9 in
Moh's scale and humidity less than 6 percent such as kaolin, limestone, calcite, marble, talcum, barite, gypsum, dolomite,
bentonite mud, mica, pyrophyllite, sepiolite, carbon black, diatomite, graphite, alunite, fluorite, potassium feldspar,
phosphorite, pigment, up to 200 kinds.
Production line: 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 micro powder grinding mill:
When the grinding mill is at work, all the grinding rollers are rolling in the ring, and the materials are driven to the edge of
the turnplate by the centrifugal force and fall down into the grinding chambers where the materials are repeatedly
pressed, crushed and grinded by the rollers.
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.
Benefit of HGM micro powder grinding mill:
1.High Efficiency.
Under the same finished final size and the same motor power, the capacity of the machine is twice as much as jet mill,
mixing grinder and ball mill, and energy consumption decreased 30%.
2.Long lifecycle of spare parts.
The ring and roller are forged by special material with high utilization,the lifetime can reach 2-5 years for grinding calcite
carbonate.
3.High safety and reliability.
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.
4.High fineness, flexible adjustment.
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.
5.Environment-friendly.
Shipping ports: Qingdao or Shanghai, China
Delivery: 15 days after received the deposit

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Technical Parameter of HGM micro powder grinding mill:
Model HGM80 HGM90 HGM100 HGM125 HGM16
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) 230-240 200-220 180-200 135-155 120-13
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
(150-15
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.
Unit: KW HGM80 HGM90 HGM100 HGM125 HGM168L
Main Unit 55-75 2*45 132 185-200 315
Classifier 18.5 18.5 30 37-4*15 5*18.5
Blower 45 55 75 2*45-2*55 2*75-2*9
Crusher 18.5 18.5 18.5 45 75
Bucket Elevator 3 3 4 4 7.5
BeltConveyor Feeder 2.2 2.2 2.2 3 3
Spiral Conveyor 3 3 3-4 2*3 2*5.5
Discharging Valve 2*0.75 1*0.75 1*1.1 2*1.1 2*1.1 2*0.75-2*
Air compressor 11 15 22 2*15-37 55
Remark: For the data with prefix such as "2*xx",it means there are two motors 2*0.75,
configuredfor one item Forexample,discharging valve,HGM80 with configuration it means
there are 2 pieces of 0.75KW motors installed with discharging valve.

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