The Screw Compactor has combined into one unit a system for mechanical transportation, de-watering and compressing. In this way the screening volume is greatly reduced." The structural and functional simplicity of the compactor design in the form of shaft less fighting, allows for the absence of internal supports and minimum maintenance. The clever design of this equipment allows it to be used in many fields.A sieve following the spiral end of the screw coupled with a discharge closure unit creates the dewatering and compressing action of the screenings. The liquid is pressed out through a specially designed tube. The machine is designed for intermittent working.