The main specification parameter optimization design made of a non-screen bar, adjustable new crushing, coarse grinding products can be widely applied to the composite broken cement raw material, clinker crushing operation, but can also be used dolomite, flint , lead and zinc, serpentine, blast furnace slag, coal, phosphate rock crushing operations and other medium hardness materials, especially for artificial sand or stone pavement highway machining of hard limestone, dolomite, granite, basalt, etc. broken. With a crushing ratio, low energy consumption, stable operation, simple structure, convenient operation and maintenance features. Vertical composite crusher works: Material from the machine falls within the upper part of a vertical high-speed rotation of the impeller, the role of high-speed centrifugal force, and the other part to form an umbrella shunt around the impeller materials to produce high-speed impact with the ground, the material in each After the collision, between the impeller and the casing will to form a vortex material impact each other many times, friction and grinding, through discharge from the bottom, forming a closed loop several times, screening equipment controlled by reaching the required product size.