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pp filter plate

LONGONE manufactures high-strength polypropylene filter press plates in recessed chamber, membrane, CGR and plate & frame designs. Custom sizes, gasketed or non-gasketed, compatible with major filter press brands worldwide. Request a quote today.

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polypropylene filter plate Types

LONGONE offers four standard PP filter plate types — recessed chamber, membrane, CGR gasketed and plate & frame — plus custom and non-standard designs.

PP Recessed Chamber Filter Plate

The most widely used design for general solid-liquid separation across industrial and municipal applications.
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PP Membrane Filter Plate

Adds an expandable diaphragm for secondary cake squeezing — ideal where lower moisture content is required.
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PP CGR Filter Plate

Caulked, gasketed, recessed design for near-leak-free performance in chemical and high-pressure environments.
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PP Plate & Frame Filter Plate

Traditional alternating plate-and-frame structure suited to fine filtration and specialty chemical processes.
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Why Polypropylene? The Material Performance

Polypropylene is the benchmark material for industrial filter press plates — and for good reason.

  • Corrosion resistance — Excellent tolerance to acids, alkalis, salts and most industrial chemicals, making it suitable for chemical, electroplating and mining slurries.
  • Lightweight — Density below 1 g/cm³ means easier handling, faster plate-changing and reduced labour during maintenance.
  • Low water absorption — Maintains dimensional stability over long service cycles, reducing the risk of warping or seal degradation.
  • Cost efficiency — Delivers reliable performance at significantly lower cost than stainless steel or PVDF alternatives.
  • Processability — Suitable for compression moulding and CNC machining, enabling precise custom profiles and non-standard geometries.
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Chamber Plate

PP Filter Plate Specifications

LONGONE PP filter plates are engineered to meet a wide range of industrial filtration requirements.

  • Plate sizes: 470 mm, 630 mm, 800 mm, 1000 mm, 1200 mm, 1500 mm, 2000 mm and custom non-standard dimensions
  • Chamber depth / cake thickness: 25 mm, 30 mm, 32 mm, 40 mm, 50 mm
  • Operating pressure: 6 bar, 10 bar, 15 bar, 16 bar, 30 bar (membrane squeezing)
  • Filtrate discharge: Open or closed
  • Sealing options: Non-gasketed (NG), gasketed, CGR caulked
  • Gasket materials: EPDM, NBR, Neoprene, Viton/FKM
  • Compatibility: Major global filter press brands
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Industries We Serve

PP filter plates from LONGONE are trusted across demanding solid-liquid separation applications worldwide.

  • Wastewater treatment — Municipal sludge dewatering, industrial effluent and metal hydroxide slurries
  • Mining & metallurgy — Tailings dewatering, concentrate filtration and mineral slurry processing
  • Chemical processing — Pigments, dyes, resins, catalysts and corrosive chemical slurries
  • Food & beverage — Starch, sugar syrup, yeast, juice and plant extract filtration
  • Pharmaceutical — Fermentation liquids, API intermediates and activated carbon slurries
  • Ceramics & construction — Ceramic slurry, kaolin, cutting wastewater and concrete washout
  • Electroplating & surface treatment — Heavy metal sludge and plating bath filtration
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Custom PP Filter Plates — Built for Your Press

Standard plates don't always fit complex equipment or demanding processes. LONGONE offers full engineering customisation to match your exact requirements.

  • Drop-in replacement for existing filter presses from brands including ANDRITZ, Metso Outotec, Larox, Diemme, ISHIGAKI and others
  • Custom mould tooling available for non-standard or irregular plate profiles
  • Configurable parameters: plate size, chamber depth, feed position, filtrate outlet, sealing design, handle/lug form and drainage surface pattern
  • Material upgrades: Glass fibre reinforced PP (GFPP) or PVDF available for high-pressure or high-temperature applications

Tell us your filter press model — we’ll engineer the fit.

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