Principle operation for linear vibrating screen (Straight line screen): While the ZSG series vibration screen are working, the two Synchronous motors placed in revise direction produce revise exciting force to the vibration exciter, and the screen body will force the screen move longitudinally. Affected by the exciting force, the material on the vibration screen will be ejected out one stroke periodically, during this process; the separating work will be achieved. http://www.nadomining.com/