Crusher - WikipediaA crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. . Crushing is the process of transferring a force amplified by mechanical advantage through a material made of . The earliest of these were in the foundries, but as coal took hold the larger operations became the coal breakers.coal crushers crushed,Coal Crusher, Coal Crushing Machine, Coal Crusher Manufacturer .Since the compression strength of coal is about 5-50, general crusher is able to deal like jaw crusher, impact crusher and roll crusher, etc. However, there exist.
coal crushers crushed