Secondary Impact Crushers offer high capacity, cubic shape and reduced wear costs. We supply the highest quality products such as Asphalt plants (asphalt mixing plants), Stationary-Compact-Mobile Concrete Plants, Bitumen emulsion tanks, Concrete mixers, Truck mixers, Concrete block making machines, Crushers, Conveyors, Feeders, Cement silos, and Spare parts manufactured under the.AGICO Offers Five Types Of Cement Crushers. The hard material with larger or medium size particle size is usually crushed by extrusion or impact method. We usually adopt jaw crusher, roll crusher, etc. Materials with strong abrasiveness are generally crushed by the extrusion method, and the surface of the grinding part should be smooth.