Amit Electricals Manufacturer, Exporter and Supplier of Single Phase Vibrating Motors The external vibrator is a single phase synchronous motor that has eccentric weights (unbalance weight) mounted at the ends of the Rotor shaft. The rotating shaft causes centrifugal forces, which can be adjusted by moving the weights it create a vibration. It also call Vibratory motor, Unbalance Motor, vibro motor, vibrates motor Ect. Vibration Help Many Way in Machine Application like Compacting, conveyor, Assorting etc….