Double Deck Dewatering Screen adopts dual-motor self-synchronization technology.The motors coordinate with universal eccentric and adjustable amplitude vibrator.When the two motors start to work, the vibrators move reversely at the same time.The centrifugal force is generated by the eccentric blocks superpose themselves and form a single direction vibration. The high frequency vibration drives the screen move back and forth in line repeatedly. So the sand will be dehydrated and filtered.