Features: 1, no sieve, the material to overcome the problem of humidity blocking machine. 2, reversing the rotor can be improved hammer efficiency, improve efficiency, increase production of small flow. 3, marker and gap adjustable, uniform grain material, the material is less than 8mm above 95%. 4, using a heavy hammer head, hammer hammer life is 2 times the same size. 5, broken open when convenient, easy to maintain. 6, the device is reliable, easy to operate, easy to maintain, can be widely used in power plants, steel mills, cement, ceramics and other materials in the crushing of medium-sized enterprises operating.