Components
Moving Rings
The floating rings that keep the filtration gaps clear
The Self-Cleaning Principle
Moving rings sit loosely between the fixed rings and are carried along by the rotating screw flight. As the screw turns, these rings continuously move up and down within the gaps, wiping away any solids that would otherwise clog the openings.
This continuous mechanical cleaning is what allows the screw press to run with very little wash water and to handle oily, greasy, and fibrous sludge that would quickly blind conventional filters.
Benefits
- Continuous self-cleaning — no cloth blinding
- Very low wash water demand
- Reliable operation with oily and fibrous sludge
RF Series Screw Press
Three-Screw Dewatering Machine
Individually driven screws at low speed — quiet, energy-efficient and easy to maintain.
Explore the RF seriesEngineering Assessment
Ready to Find the Right Screw Press?
Our engineering team provides application-specific screw press sizing and selection — based on your sludge type, flow rate, and dewatering targets.