A Screw Press is a mechanical device designed to separate liquids from solids in bulk material streams. It operates on the principle of continuous compression, using a rotating screw within a cylindrical screen or perforated housing. This technology is widely applied in industries where efficient dewatering, moisture reduction, and waste minimization are critical.

Working Principle

• Feeding: Bulk material is introduced into the press through a hopper or conveyor.
• Compression: A screw shaft rotates, gradually pushing the material forward while applying increasing pressure.
• Separation: Liquids pass through the screen or perforated casing, while solids are compacted and discharged at the end.
• Discharge Control: Adjustable cone or pneumatic back-pressure devices regulate dryness of the solid output.