Applicantion: Used for various waste paper pulp of coarse screening. Design Feature: Based on the fluid dynamic development of new high effeciency and energy saving up circulation the son,and high performance big let flow processing capacity sieve drum.Save 30-60percent of the power consumption,improve the effiency of screening. Special design of the high flow structure,higher production ability; Liters flow design and prolong the service life of the consumables.