Main description High accuracy 2-decks powder sifter screening machine adopts new type dynamic generator, making three dimension powersmore obviously and successfully, making the scale of processed materials enlarged. Accordingly this makes 2014 Hot Sale Rotary vibrating sifter for pig manure capable of processing various kinds of materials. Features 1.Screening machinery is one of precised powder sieve, it is of high efficiency, screening efficiency exceeds 90%. 2. It adopts whole sealing structure design to guarantee no dust pollution, no leaking liquid, no material left in machine, and no dead angle in the net frame. 3. Small noise and light weight, easy to be installed and maintained. 4. The outlet can be adjusted at any angle, and it is easy to replace the screen. 5. The rubber ball device can reduce the material jam on the screen. 6. By adding ultrasonic device, superfine materials up to 600 mesh can be sieved.