Sludge dewatering system is  fully automatic screen separator features a unique structure that allows for easy operation, as well as stability and reliability. Due to the multi-layer water filter, the removal rate of suspended solids is high, the waste water treatment capacity is large, the machine area is small, and the equipment cost low-level advantages, due to installation of a grading collection sliding bucket and a concentration of collection box, it can be recycled according to the diameter of the suspended particles. The utility can reduce the content of suspended solids in industrial waste water, meet the environmental protection discharge requirements, and reduce the pollution to the human living environment