The ultrasonic screening system is composed of an ultrasonic resonant power supply, an oscillator and a resonance ring.The off-frequency electric oscillations produced by the ultrasonic resonant power supply are converted into high-frequency cubic oscillation waves by the oscillator. These oscillating waves are transmitted to the resonance ring so that the resonance ring produces resonance, and then the vibration is uniformly transmitted to the screen surface by the resonance ring.The material on the screen mesh in the low frequency three dimensional vibration at the same time, superimposed on the ultrasonic vibration, not only can prevent the mesh plugging, but also can improve the screening output and quality, solve the strong adsorption, easy agglomeration, high static high fine.Separation density, light gravity and other screening problems.RA series ultrasonic vibrating screen screening accuracy can be increased by 100%, production can be increased by 1-20 times;Suitable for more than 600 mesh industrial fine production screening needs!