Established in 1942
+7 (846) 3-741-741 ext. 138
Since 1942 Strommasina Corp. has been successfully producing equipment for the mining, building, oil and gas, as well as road, metallurgical industries.

Roller mill of coarse grinding

About a roller mill

A roller mill of coarse grinding is designed for non-flammable and inexplosive materials grinding, such as barite grinding, talc grinding, limestone grinding, glass grinding, marble fining, and other similar materials grinding and fining. The roller mill grinds soft minerals and materials of medium hardness (not above 7.0 of Moh`s hardness). Also, such vertical mill is designed to grind materials with a moisture rate of not more than 6%. The grinder is widely used in mining, metallurgy, chemical, construction, and other industries.

Process approach

The raw material is loaded into the vertical roller mill storage tank uniformly and continuously. Under the centrifugal force, the shaft moves aside and is forced against the ring. The loaded material gets into the space between the mill`s shaft and the ring. Afterwards, the material gets grinded under the rotary shaft action. After getting grinded inside of the grinding unit, the fined material gets transferred into a classifier. The coarse particles return back for regrinding until the fine material of desired size is received. As for the fine grinded fractions, they flow into a cyclone an get unloaded through a discharge chute as a finished good.

“Strommashina” roller mills

“Strommashina” is an outstanding roller mill manufacturer. Our high standards, together with more than 50 years of grinding units manufacturing, make us one of the top grinding equipment manufacturers and specifically a top vertical roller mill manufacturer.


Roller mill of coarse grinding technical characteristics

Type Roll Ring Maximum output size, mm Finished product size, mm Power, kW
Quantity Diameter, mm Height, mm Inner diameter, mm Height, mm
3/2115 3 210 150 630 150 15 0.44-0.165 15
3/2615 3 260 150 780 150 15-20 0.44-0.165 18,5
3/2715 3 270 140 830 140 15-20 0.44-0.165 22
3/3016 3 300 160 880 160 15-20 0.44-0.165 30
4/3216 4 320 160 970 160 20-25 0.44-0.165 37