Crusher - WikipediaA crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. ... Gyratory crushers can be used for primary or secondary crushing. . with jaw crusher, it can be used as secondary, tertiary or quaternary crushing.primary secondary and tertiary crushing,Primary Secondary And Tertiary Crushing - Properties - NigeriaKleemann - Products - Secondary crushing plants Depending on the application, MOBICONE and MOBI secondary crushers can be used.
primary secondary and tertiary crushing