Dual roll crushers, how they function Mine EngineerCom. They have, within the last 10 or so years, fallen into disfavor among mining and processing compani, Coal is probably the largest user of roll crushers, currently, though, Photo of a small scale roll crusher, with a capacity if 1/2 ton/hour
Industrial Rock Crushers employ two planer crushing surfaces set at a small angle to each other and convergent downward. One plane is fixed and the other is pivoted either top or bottom allowing a reciprocating motion when pushed by a pitmantoggle arrangement activated by an eccentric drive. The 3 common variations of the jaw crusher drive system are describe here.