... are needed in the operating room and it's easy maintenance. Working PrincipleFirstly, raw material is crushed by ... the crushed materials are elevated into a hopper from which the material is transported through the electro-magnetic ... Hammer Crusher, Compound Crusher, Box Hammer Crusher, Feeder, Ball Mill, Rod Mill, Raymond Mill, Conveyor, Vibrating Screen, Flotation Machine, Magnetic Separator, Shaking ...