Usage and Application of Roll Crusher 
Roller Crusher is widely used for secondary and fine crushing in the industry of mining, building materials, chemical industry, metallurgy and so on.Roll crusher can crush materials in middle hardness, such as rocks, ore, coke,lump coal, slag, mineral slag, cement clinker, fireproof materials and so on.
Working Principle of Rollers Crusher
The motor drives the fixed roller and movable roller to work via reducer, V-belts or coupling. Materials are put into the space between the the two rollers via the feed entrance, as the two rollers inward turning, the input materials are crushed, pressed, and at last come out from the bottom of the machine.
Features of roller crusher
Compact structure, low noise and efficiency.
Easy to install, no need of foundation almost.
The pressure and end products size can be easily adjusted.
Low maintenance cost and easy to maintain.