The motor is transmitted to the vibrator drive shaft and the gear vibrator (speed ratio is 1). The three axes rotate at the same speed and produce the vibration force. The vibration exciter is connected with the sieve box through high strength bolts to produce elliptical motion. The material is carried out at high speed elliptical motion on the sieving machine. The material is quickly layered and moved forward through screen mesh, and finally the material is classified.