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Vibrating screen 
Vibrating screen is to use the vibrator excitation generated by the reciprocating screw type vibration and work. Stator rotating hammer on that plane whirl vibration sieve surface, while the rotating hammer make cone rotary vibration sieve surface, the effect of the combined complex type rotary vibration sieve surface. The track vibration is a complex space curve. In the horizontal projection for a round of the curve, and in the vertical plane of projection is an oval. Adjust the upper and lower rotating hammer exciting force, can change the amplitude. And adjust the space phase Angle of upper and lower weight, you can change the course of screen surface movement curve shape and change the direction of movement of screen surface materials.