The vibration sieve is composed of hopper, oscillation chamber, coupling, motor, etc. The adjusted eccentric weight is driven by the motor and transmitted to the center line of the main shaft. Under the unbalanced state, centrifugal force is generated to force the materials to form track vortex in the screen. The amplitude of the weight regulator can be adjusted according to different materials and screens. The whole machine has compact structure, small volume, no dust, low noise, high output, low energy consumption and convenient movement and maintenance. ZS series sifter is suitable for flow operation. It is an ideal equipment for screening fine powder and particles.