YS screw squeezing conveyor is used for the delivering, squeezing & dewatering of residue discharged from urban wastewater treatment plant, pretreatment device of residential wastewater treatment, municipal rainwater/ sewage treatment pump station, and water supply plant. It works as axially device for screenings.YS screw squeezing conveyor adopts shaftless screw type.Residue dropped into the conveyor through hopper and moves forward along with U shaped conveyor through until the squeezing zone, get dewatered under the mutual pressure of squeeze pipe & back plate of discharge outlet. The dry parts fell into the trash cart for outward transport, and water flows back to the screening through return pipe.