Four Roll Coal Crushers For Sale. Used Roll Crusher, , Large Capacity Iso Ce Approved Specification Used Mobile Mining Crushing Double Teeth Toothed Coal Roll Crusher For Sale Ad US 10008000 Set . Function Of Four Roll Coal Crusher amonkarsin. Function Of Four Roll Coal Crusher Rock Crusher Mill function of four roll coal crusher XSM is a.Roll crusher, with other names of roller crusher, teeth roll crusher or double roll crusher, is mainly used for secondary crushing or tertiary crushing of raw materials such as coal, coal gangue, coke, limestone, sulfur ore, phosphate rock and other materials. Its crushing way is roll extrusion, and the compression strength of to-be-broken.