The 4265 Gyratory CrusherMay 20, 2016 . A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. There are five types of crushers; Jaw crusher,.pyrochlore crusher operation stone,Noise Assessment of Stone/Aggregate Mines: Six Case Studies - CDCs u r v e ~ h g stone (aggregate) &ing and crushing and . ing and crushing equipment) and fill-shift dose memure- . ing and processing operations aver-.Crusher - WikipediaA crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. . The earliest crushers were hand-held stones, where the weight of the stone provided a boost to muscle power, used against a stone anvil. .. Mining operations use crushers, commonly classified by the degree to which they.
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