This machine is developed based on principle of impact energy. When materials get into hammer operating area, they are crushed by hammer’s high speed impact, the materials are crushed again by being thrown to impact plate area in high speed, then they are crushed third time when they rebound to hammer area from impact plate area.  This process proceed repeatedly, then graduallyget through the impact plate area then dischargethe materials from bottom part of machine.  Crushing materials’ shape and discharge speed can be controlled by adjusting the distance between impact plate and rotor.