Filtration Engineers Who Understand Sludge
R+F FilterElements GmbH — your German engineering partner for screw press sludge thickening and dewatering.
Who We Are
Two-Screw Unit with Control Panel
Ready-to-connect dewatering unit with touch panel control, flocculation tank and cake discharge chute.
Explore the RF seriesWhy Our Advice Is Different
Technology-Neutral Perspective
We supply filter cloths for chamber filter presses, belt filters and centrifuges. We know the strengths and limits of every dewatering technology — and recommend a screw press only where it is the better choice.
Process Before Product
Every project starts with your sludge: type, feed solids, volatile fraction, grease content and polymer response determine the machine — not the other way round.
Media & Separation Know-How
Developing our own filter media means we understand gap widths, cake formation, blinding and solids capture at a fundamental level.
Engineered in Germany
Process engineering, sizing and documentation from Hildesheim; stainless steel 316/316L construction from a European manufacturing network.
Our Competences in Sludge Dewatering
Sizing & Process Design
Solids load balance, model selection from 15 RF models (6–1,664 kg DS/h), redundancy and operating-hour concepts.
Polymer Conditioning
Polymer selection, dosing and flocculation reactor design — the decisive factor for cake dryness and capture rate.
Complete Systems
Feed pumps, polymer stations, conveyors and controls integrated into one engineered dewatering package.
Rental & Pilot Testing
Test the screw press on your own sludge before investing — with clear test protocols and measured results.
Commissioning & Service
Installation supervision, optimisation, operator training, spare and wear parts over the full life cycle.
Retrofit & Replacement
Replacing belt presses or centrifuges with low-energy screw presses — including layout checks for existing buildings.
Your Contacts
Christopher Franke — Managing Director
R+F FilterElements GmbH, Hildesheim · [email protected]
Anna Rippel — Managing Director
R+F FilterElements GmbH, Hildesheim · [email protected]
How We Work
- 1Analysis — sludge data, site conditions and targets are captured in our Engineering Assessment.
- 2Engineering — sizing, polymer concept, layout and a transparent, individual quotation.
- 3Validation — optional pilot test or rental unit on your own sludge.
- 4Delivery & Commissioning — factory-tested machine, on-site start-up and operator training.
- 5Lifetime Support — service, optimisation and wear parts from one partner.
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.