Product Series
RF-RD Series — Rotary Disc Filter Cloths
Precision-cut sector cloths for rotary vacuum disc filters. Engineered for exact disc geometry, high abrasion resistance, and reliable filtrate clarity in demanding mining and mineral processing environments.
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Series Overview
The RF-RD Series provides precision-cut filter cloths designed specifically for rotary vacuum disc filters. Each sector panel is cut to the exact geometry of your disc segments, ensuring a tight fit, uniform vacuum distribution, and consistent cake thickness across the entire disc area.
Our disc filter cloths are manufactured from monofilament and multifilament yarns with weave constructions optimized for the abrasive slurries typical in mining, alumina refining, and mineral processing. We supply ready-to-install sector panels compatible with all major OEM disc filter designs.
Precision-Cut
Exact sector geometry
Abrasion Resistant
For mining slurries
High Permeability
Fast drainage & dewatering
OEM Compatible
Outotec, BOKELA, Andritz
Material Options
Material selection depends on slurry chemistry, particle size, and operating temperature.
PET (Polyester)
The standard choice for most disc filter applications. Excellent mechanical strength, good dimensional stability, and high resistance to acidic slurries. Monofilament PET provides superior cake release.
PP (Polypropylene)
Full pH resistance (1–14) for alumina red mud, phosphoric acid, and other chemically aggressive slurries. Lower temperature limit but excellent chemical durability.
PA (Polyamide / Nylon)
Superior abrasion resistance for highly abrasive mineral concentrates. Good elasticity helps the cloth conform to disc segment geometry under vacuum.
Cloth Configurations
Sector Panels
Pre-cut to your exact disc segment dimensions. Ready-to-install panels with finished edges and mounting provisions.
Caulking Rope Pockets
Integrated rope pockets for caulking-style mounting systems. Ensures secure attachment and prevents cloth lift-off under vacuum.
Snap Ring Attachment
Compatible with snap ring or bolt-on mounting systems used by Outotec, BOKELA, Andritz, and Alar disc filters.
Weave Construction
Monofilament Weaves
Single-strand yarns provide excellent cake release, high permeability, and resistance to blinding. Ideal for coarse mineral slurries.
Multifilament Weaves
Multi-strand yarns offer finer retention and higher particle capture. Best for fine mineral concentrates and tailings.
Twill & Satin Constructions
Advanced weave patterns for optimized drainage, surface smoothness, and controlled cake discharge characteristics.
Technical Specifications
Approximate values. Actual specifications depend on weave construction and application requirements.
| Material | Max. Temp. | pH Range | Air Permeability | Weight | Format |
|---|---|---|---|---|---|
| PET (Polyester) | 150 °C | 2–10 | 200–1,500 L/m²/s | 250–800 g/m² | Sector-cut |
| PP (Polypropylene) | 100 °C | 1–14 | 300–2,000 L/m²/s | 200–700 g/m² | Sector-cut |
| PA (Polyamide) | 120 °C | 3–11 | 200–1,200 L/m²/s | 250–750 g/m² | Sector-cut |
Applications
Rotary disc filter cloths are used across heavy-duty mineral and chemical filtration processes.
Related Machines
RF-RD cloths are designed for these machine types.
Rotary Disc Filter
The primary machine for RF-RD sector cloths — continuous vacuum filtration with rotating disc segments.
Learn MoreVacuum Filter
General-purpose vacuum filtration systems including drum and disc configurations.
Learn MoreDrum Filter (RVD)
Rotary vacuum drum filters for continuous slurry dewatering in similar applications.
Learn MoreIndustries
Disc filter cloths are critical components in these sectors.
Common Challenges
These filtration problems are especially relevant for disc filter applications.
Filter Cloth Clogging
Mineral fines progressively blind the cloth, reducing vacuum and throughput.
SolutionsShort Filter Lifespan
Abrasive slurries cause rapid surface wear, requiring frequent sector replacements.
SolutionsCake Release
Poor cake discharge from disc sectors reduces output and causes uneven operation.
SolutionsNeed disc filter sector cloths?
Tell us your disc model, sector dimensions and mineral type — we deliver precision-cut panels ready for installation.
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