This Ultrasonic Sievig Machines system is composed of an ultrasonic resonance power supply, an oscillator, and a resonance ring. High frequency generated by ultrasonic resonant power supply

The electric oscillation is converted into a high-frequency three-dimensional oscillation wave by the oscillator, and these oscillation waves are transmitted to the resonance ring to make the resonance ring resonate.

Then, the vibration is uniformly transmitted to the screen surface by the resonance ring. The material on the screen is superimposed with ultrasonic while doing low-frequency three-dimensional vibration

Wave vibration can not only prevent the mesh from clogging, but also improve the screening output and quality.
link:https://www.jydultrasonic.com/ultrasonic-sieving-machine/ultrasonic-sievig-machines.html