... 1. High efficiency sand crusher 2.PCL1250 crusher 3.sand maker with 160-300t/h 4.ISO9001:2000 Characteristics of sand making ... cement, refractory and metallurgical.Working principle:When working, the sand maker, driven by the motor, rotates high-speedily. The materials, into ... the first crushing chamber, are crushed and impacted with plate hammer on the rotor, and then smashed into the ...