Optimised Filtration Media for Horizontal and Vertical Disc Filter Systems

Skytech Ultrafab Disc Filter Bags are precision-cut and fabricated for horizontal-disc and vertical-disc pressure and vacuum filtration equipment used in chemical processing, mining, pharmaceutical, and wastewater sectors. Manufactured from woven monofilament, needle felt, or non-woven polypropylene and polyester fabrics, the bags deliver reliable particle retention and easy cake discharge. Heat-welded or sewn edges eliminate bypass and ensure a positive seal on the disc frame.

What Are Disc Filter Bags?

Disc filter bags are circular or annular filter media elements that mount on the disc frames of horizontal disc pressure filters or vertical disc vacuum filters. Slurry is pumped into the filter vessel, and liquid passes through the disc bags while solids accumulate as a filter cake on the bag surface. At the end of the cycle, the cake is discharged by back-blowing or mechanical vibration of the disc assembly.

Features and Benefits

• Precise Particle Retention: Woven monofilament and needle-felt disc media available from 1 µm to 500 µm for a wide range of solid-liquid separation requirements
• Positive Seal Construction: Heat-welded or sewn-to-dimension circumferential edges provide a positive seal on the disc frame — eliminating particle bypass
• Easy Cake Release: Smooth fabric surfaces and optimised weave structure allow clean, complete cake discharge with each back-blow or vibratory discharge cycle
• Chemical Resistance: Polypropylene and polyester construction covers pH 1–13; PTFE option for highly aggressive chemical slurries
• Custom Disc Sizes: Cut and fabricated to any disc diameter and inner bore dimension to fit all horizontal and vertical disc filter OEM designs
• Reinforced Edges: Double-stitched or heat-sealed perimeter reinforcement prevents edge fraying and maintains dimensional stability over many operating cycles

Technical Specifications

Applications

• Chemical Processing: Pigment, titanium dioxide, and specialty chemical slurry dewatering in horizontal pressure disc filters
• Mining and Minerals: Fine mineral concentrate and tailings dewatering using vertical disc vacuum filters in copper, nickel, and iron ore operations
• Pharmaceutical: API crystallisation and intermediate product solid-liquid separation in disc pressure filter vessels
• Wastewater Treatment: Industrial sludge dewatering and clarification in disc filtration equipment at municipal and industrial wastewater plants
• Starch and Sugar: Corn starch and sugar liquor disc filtration to achieve consistent cake dryness and filtrate clarity

Why Choose Skytech Ultrafab for Disc Filter Bags?

• OEM Compatibility: Disc bags fabricated to fit all major horizontal and vertical disc filter brands including Larox, BHS, Prayon, and Rosenmund
• Heat-Welding Capability: In-house thermal welding produces zero-stitch-hole seams for absolute particle retention — preferred for pharmaceutical and fine chemical applications
• Fast Turnaround: Standard disc sizes produced within 5–7 working days; emergency supply from pre-cut stock for common disc dimensions
• Technical Support: Application engineers assist in fabric type, micron rating, and edge construction selection for your specific disc filter process
• Quality Assurance: Every disc bag inspected for dimensional accuracy and seam integrity before despatch — test certificates on request