This series are suitable for the flow process, and are ideal equipments used for unequal granules through sieve. It consists of hopper, vibrating chamber connecting shaft, and electromotor. There are eccentric wheel, rubber, software, main spindle and bearing in the vibrating chamber. When the adjustable eccentric hammer is passing the centre of main spindle drive by motor, it may be out of balance and causes eccentricity forcing the materials to from orbital eddy. The amplitude of the hammer adjuster may be regulated by changing the types of material and the messes of sieves