? Product Description ?Features: Screw presser?is used to separate out wet impurity from dirty water and press the wet impurity to be dry impurity. Key Equipments on Plastic Recycling Line? The compacting screw is used to separate out wet impurity from dirty water, and press the wet impurity to be dry impurity.? An rotating shaftless screw conveyer propels the wet impurity to filter case with great thrust force, while there two heavy blocks at the outlet of filter case to press the impurity, So water?can be filter out by the thrust force and pressure. ?