Crusher - WikipediaIn industry, crushers are machines which use a metal surface to break or compress materials into small fractional chunks or denser masses. Throughout most of industrial history, the greater part of crushing and mining part of the process occurred under muscle power as the application of force concentrated in the tip of the.frets mine crusher,Discrete element method - Nottingham ePrints - University of .A cone crusher is a crushing machine which is widely used In the mining, .. fret/all slitk hl/. I. freeSpeed Region II fall slide squeeze. Figure 3.9 Transport mechanisms proposed within the speed region II for the cone crusher flow model .. The mineral rock extracted from mine and quarrie often require to be reduced in.