Crusher - Wikipedia
A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, sand or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.algeria hard rock impact crusher - egid-unterwegs.de,rock quarry mineral ore impact crusher pf1210. hard rock, limestone, coal, ore, overburden and other minerals in open pit pines and quarries. The crusher is the core ofPFY Series Hard Rock Impact Crusher - Luoyang Dahua,PFY Series Hydraulic Impact Crusher is designed and developed by our company by introducing latest advantages of many domestic similar products. It adopts the heavy type rotor structure, high capacity crushing chamber, high wear-resisting alloy plate hammer, heavy impact-resistance impact liner, multi-point hydraulic adjustment device and hydraulic opening device.