Filter Press Cloth
PP, Polyester, PTFE and Cotton; Made to Measure for Your Plate
Filter press cloth is a technical filter fabric that is stretched between the press plates to retain the solids in the fluid. It is made from PTFE, cotton, PP and polyester, to the technical drawing of your plate.
PTFE, CO, PP, PET
280 °C
4 Cuts
What is filter press cloth?
Filter press cloth is the filter element that performs solid–liquid separation in filter presses. It is fitted between the plates and clamped by a hydraulic mechanism; as the fluid passes through the cloth, the solids are retained on the cloth surface as a cake and the clean liquid filters through. Depending on the process, the main product may be either the filtrate or the retained cake.
Filter presses are preferred for fluids with a high solids content and high density and viscosity; because they provide a much larger filtration area than cartridge and bag filters, the replacement interval is longer.
Key Technical Specifications
- Raw Material
- PTFE (Teflon)
- Cotton (CO)
- Polypropylene (PP)
- Polyester (PET)
- Shape & Configuration
- Perforated
- Non-Perforated
- Center Feed
- Project-Specific Sewn Forms
- Temperature Resistance
- Continuous 90–240 °C, peak 105–280 °C (depending on raw material).
- Size & Dimensioning
- Precise width × length, hole axes and edge distances to the plate technical drawing.
Chemical resistance and temperature table
- PTFE (Teflon) Filter Press Cloth
- Operating Temperature: Continuous 240 °C, peak 280 °C.
Chemical Resistance: Excellent inert resistance to all strong acids, weak acids, alkalis and oxidising agents.
Shape: Perforated, Non-Perforated, Center Feed and custom-made. - Cotton (CO) Filter Press Cloth
- Operating Temperature: Continuous 90 °C, peak 115 °C.
Chemical Resistance: Moderate resistance to weak acids, good/excellent to alkalis and moderate to oxidising agents; poor resistance to strong acids.
Shape: Perforated, Non-Perforated, Center Feed and custom-made. - Polypropylene (PP) Filter Press Cloth
- Operating Temperature: Continuous 90 °C, peak 105 °C.
Chemical Resistance: Excellent to strong and weak acids and all alkalis; poor resistance to oxidising chemicals.
Shape: Perforated, Non-Perforated, Center Feed and custom-made. - Polyester (PET) Filter Press Cloth
- Operating Temperature: Continuous 130 °C, peak 150 °C.
Chemical Resistance: Good resistance to acids and oxidising agents; poor resistance to strong alkalis.
Shape: Perforated, Non-Perforated, Center Feed and custom-made.
Filter press cloth shapes
The shape is determined by the plate geometry and by where the fluid enters the plate. All four shapes are made in all four raw materials above.
Perforated
A perforated cloth with holes cut to match the feed and filtrate channels of the plate. Used on plates where the channels pass through the cloth; hole diameters and their distances to the edges are made to the technical drawing.
Non Perforated
A plain cloth with no holes. Preferred for plate designs where the feed channel does not pass through the cloth; dimensions and edge finishing are set to suit the plate.
Center Feed
A cloth with a feed hole at its centre, for centre-fed plates. A neck (sleeve) can be sewn around the hole to suit the plate type.
Custom-Made
A cloth made to the supplied technical drawing for non-standard plates. Dimensions, hole layout, layer structure and additional operations are defined for each order.
How do you choose the right filter press cloth?
Product selection advice
- Fabric Type
- Selected by taking into account the temperature and chemical parameters in the resistance table.
- Fabric Structure
- Nonwoven, monofilament woven or multifilament woven.
- Micron Rating
- The required filtration fineness.
- Number of Layers
- The number of layers in the cloth and the individual properties of each fabric layer.
- Layer Values
- The micron rating or g/m² weight of each layer; air permeability and transverse and longitudinal strength values, if available.
- Inlet–Outlet Direction
- The inlet and outlet directions, determined with the layers taken into account.
- Width × Length
- The net width × length of the cloth.
- Technical Drawing
- Hole positions, sizes and distances to the edges.
- Additional Operations
- Any additional operations and features required.
Industrial Applications
With high mechanical tensile strength, excellent cake release and chemical resistance, it is used reliably in all industries with intensive solid–liquid separation, from wastewater treatment to mining and from chemicals to food and metallurgy:
We Answer Your Questions
Frequently Asked Questions
At Prosestim, we attach great importance to answering your questions and providing technical support on our filtration solutions.
What raw materials is filter press cloth made from?
What shapes is filter press cloth made in?
Which filter press cloth withstands the highest temperature?
Which filter press cloth is used in strong acid processes?
Which cloth should be preferred in strong alkaline environments?
Which raw material is suitable for fluids containing oxidising agents?
What is the difference between perforated and non perforated cloth?
When is center feed cloth used?
Is filter press cloth made to custom sizes?
What information should I send for product selection?
Filter Press Cloth RFQ Configurator
Configure your variation dimensions and technical specifications to receive an instant quote directly on WhatsApp and via email.