When the material is crushing, sometimes it needs coarse crushing and secondary grinding according to the different demands of granularity of finished product.

Pebbles sand making machine effectively guarantee the highway, high-speed railway, high building, hydroelectric DAMS, port terminals, the supply of high quality sand aggregate concrete mixing station, has become the preferred mechanism sand production equipment. At the same time it metal ore crushing, quartz sand production, steel slag disposal etc also has extensive applicability, this has…