1.It is used for screening of pellet, crumbled pellet and cleaning of some pellet and grinded material. 2.Belt driving system is adopted. 3.According to different requirement, screen layer and mesh can be adjusted to achieve the screening of coarse material,finished product and powder material. 4.With special balance, polymer nylon board, the best amplitude can be reached during rotary. 5.Screen system is flexible with less trouble, easy maintenance and high capacity.