Rubber Membrane Filter Plate

Rubber Membrane Filter Plates | Replaceable Diaphragm Filter Press Plates

Product Overview

HUATAO Rubber Membrane Filter Plates, also known as Rubber Diaphragm Filter Plates or Membrane Squeeze Filter Plates, are engineered for high-efficiency solid-liquid separation where lower cake moisture, shorter filtration cycles and reliable operation are required.

Unlike conventional recessed chamber plates, a membrane plate uses a flexible diaphragm to apply secondary pressure to the filter cake after the initial filtration stage. Water or compressed air can be introduced behind the membrane, causing it to expand and mechanically squeeze the cake. This additional dewatering stage can increase cake solids and reduce residual moisture before cake discharge. This operating principle is widely used by international membrane filter press manufacturers.

Our plates are particularly suitable for mining tailings dewatering, mineral concentrate filtration, coal washing, metal processing, chemical slurry and industrial wastewater treatment.

For plants operating under abrasive or chemically aggressive conditions, HUATAO can supply replaceable rubber membrane plates with elastomer selection and plate configuration adapted to the actual slurry and operating conditions.

Replaceable Rubber Membrane Design

The Replaceable Rubber Membrane Plate consists of a rigid support/core plate combined with flexible replaceable membrane sheets. When the diaphragm becomes worn or damaged, the membrane can be replaced separately instead of discarding the complete plate.

This construction can significantly reduce replacement cost and maintenance downtime, particularly in mining and heavy industrial filter presses where plates operate continuously under abrasive slurry and repeated pressure cycles.

Replaceable membrane technology is an established industrial design: international suppliers describe replaceable membranes as mechanically secured to the support plate so that the membrane face can be removed while retaining the original plate body.

Correct membrane installation is important. The membrane must be properly seated and sealed to prevent leakage during the squeeze cycle.

Key Advantages

Lower Cake Moisture
Secondary membrane squeezing removes additional liquid after cake formation, producing a drier cake and reducing downstream handling, transportation or thermal drying requirements.

Replaceable Membrane Construction
Only the worn rubber membrane sheet needs to be replaced in applicable designs, helping extend the usable life of the plate body and reduce spare-parts expenditure.

Designed for Demanding Slurries
Rubber compounds can be selected according to abrasion, temperature and chemical conditions. NR, EPDM, NBR and other elastomer formulations are available according to application requirements.

Efficient Filtration Cycles
Membrane squeezing can achieve the required final cake condition without relying solely on extended feed-pump filtration, helping optimize overall press cycle time.

OEM Replacement Capability
Plate dimensions, feed ports, filtrate outlets, sealing profiles, handle positions, membrane interfaces and drainage surfaces can be customized according to drawings or existing samples.

Technical Specifications

Note: Pressure, temperature and chemical resistance must be confirmed according to plate construction, elastomer compound, slurry chemistry and filter press operating conditions. International membrane presses can operate across widely varying pressure ranges, so these values should not be generalized to every replacement plate.

Mining & Mineral Processing Applications

Tailings Dewatering

For iron ore, copper, gold and other mine tailings, high-pressure membrane filter plates help remove additional water from the filter cake before discharge. Lower cake moisture improves material handling and can support tailings stacking and water recovery systems.

Mineral Concentrate Filtration

Copper, zinc, lead, iron ore and other concentrates often require controlled final moisture before storage, transport or downstream processing. Membrane squeezing provides additional mechanical dewatering after conventional pressure filtration.

Coal Washing & Fine Coal

Fine coal and coal-washing sludge can be difficult to dewater efficiently. Membrane squeeze plates provide additional cake compression, helping improve water recovery and produce a more manageable filter cake.

Industrial & Municipal Sludge

The plates are also suitable for wastewater sludge, stone-processing sludge, pigments, chemicals and other difficult solid-liquid separation duties where conventional chamber filtration leaves excessive residual moisture.

Membrane filter presses are used internationally across mining, mineral processing, chemical, sand and gravel, industrial and municipal applications where low residual moisture and robust operation are important.

Rubber Material Selection

EPDM Rubber Membrane – Recommended for many aqueous, acidic/alkaline and elevated-temperature environments where weathering and chemical resistance are important.

NBR Rubber Membrane – Suitable where resistance to oils, hydrocarbons and certain industrial process fluids is required.

Natural Rubber / Wear-Resistant Compounds – Suitable for applications where elasticity and abrasion resistance are priorities.

For chemically aggressive slurry, material selection should always be based on chemical composition, concentration, slurry temperature, operating pressure and cleaning chemicals, rather than selecting the elastomer by name alone.

OEM Replacement & Custom Manufacturing

HUATAO supplies OEM filter press membrane plate replacements for new installations and maintenance projects. Replacement plates can be developed according to an existing plate, technical drawing or detailed dimensional information.

For replacement projects, please provide:

• Filter press manufacturer and model
• Plate dimensions and thickness
• Existing plate photos or drawings
• Feed and filtrate port dimensions
• Membrane material, if known
• Filtration and squeeze pressure
• Slurry composition and pH
• Operating temperature
• Required quantity

For older or discontinued filter presses, dimensional verification is especially important because plate configuration, port location and sealing geometry may differ even when nominal plate sizes are identical.

Why Choose HUATAO Rubber Membrane Filter Plates?

HUATAO focuses on wear-resistant and replacement components for mining and mineral-processing equipment. Our Rubber Membrane Filter Plates can be engineered around the customer’s actual filter press and slurry conditions rather than supplied as a generic one-size-fits-all component.

From replaceable rubber membrane sheets and complete membrane plates to customized OEM replacement solutions, we help mines, concentrators and industrial filtration plants reduce cake moisture, control maintenance costs and maintain reliable filter press operation.

Send us your filter plate drawing, plate photos or filter press model for technical evaluation and quotation.