Jaw Crusher ScienceDirect
· The first stage of size reduction of hard and large lumps of runofmine (ROM) ore is to crush and reduce their size. Softer ores, such as placer deposits of tin, gold, mineral sands, etc., do not require such a treatment. Largescale crushing operations are generally performed by mechanically operated equipment such as jaw crushers, gyratory crusher and roll crushers. For very large ore ...