Rotary vibrating screen introduction This 3d rotary vibrating screen, which makes use of upright motor as the source of vibration, is suitable for the quick separation and filter of any powder, grain, liquid in the foodstuff, chemical pharmaceutical, grinding, ceramic and metals processing, etc. Rotary vibrating screen working principle Its vertical motor, which is installed with eccentric hammers on the top and bottom, is regarded as a vibratory source.The eccentric hammers change the track of rotation into horizontal, vertical and inclined movement, and then pass the movement to the sieving surface. Adjusting the phase angle between the top and bottom eccentric weight can change trajectories of the materials on the sieve.