High-Strength Centrifuge Bags for Demanding Solid-Liquid Separation
Skytech Ultrafab Centrifuge Bags are robustly constructed for use in basket centrifuges across pharmaceutical, sugar, chemical, textile dyeing, and mining industries. Available in polypropylene, polyester, nylon, and cotton, each bag is engineered to withstand high centrifugal forces, chemical exposure, and elevated temperatures over thousands of operating cycles.
What Are Centrifuge Bags?
Centrifuge Bags are cylindrical filter bags inserted into the basket of a centrifuge machine. As the basket spins at high speed, centrifugal force drives liquid outward through the bag walls while retaining the solids inside the bag as a filter cake. The bag must combine precise filtration rating with the mechanical strength to survive high-G loading without tearing or collapsing.
Features and Benefits
- High Centrifugal Strength: Reinforced sidewalls and heavy-duty seam construction withstand G-forces up to 2500 G without deformation or tearing
- Chemical Resistance: PP, PES, and nylon options cover acidic, alkaline, and solvent-based process liquids
- Accurate Micron Retention: Woven monofilament and multifilament fabrics available from 10 µm to 500 µm for precise particle capture
- Reinforced Tops and Bottoms: Double-stitched or welded reinforcements at the most stress-critical areas extend operating life significantly
- Custom Basket Fit: Manufactured to the exact internal diameter and depth of any OEM centrifuge basket with a secure slip-fit or clamped edge
- Easy Cake Discharge: Smooth woven fabric surfaces enable clean, complete cake release at the end of each spin cycle
Technical Specifications
| Parameter | Details |
|---|---|
| Available Materials | Polypropylene, Polyester, Nylon, Cotton |
| Micron Rating | 10 – 500 µm (woven) / 1 – 50 µm (felt options) |
| Max Temperature | PP: 90°C | PES: 135°C | Nylon: 120°C |
| Max G-Force | Up to 2500 G (design-dependent) |
| Centrifuge Types | Pusher, Peeler, Basket, Worm-screen centrifuges |
| Basket Diameter | 400 mm to 1600 mm (custom) |
| Seam Construction | Double lock-stitch with PP or Nylon thread |
| FDA Option | Available in food-grade PP and PES |
Applications
- Pharmaceuticals: API crystallisation, granule washing, and mother-liquor separation in cGMP-compliant pusher and peeler centrifuges
- Sugar Industry: Massecuite separation in continuous and batch basket centrifuges for raw and refined sugar production
- Chemicals: Salt, pigment, polymer, and dye paste dewatering by centrifugal filtration
- Textile Dyeing: Yarn and fabric centrifugal dewatering after dyeing operations to reduce drying energy
- Mining: Fine mineral concentrate dewatering in coal and potash processing centrifuges
Why Choose Skytech Ultrafab for Centrifuge Bags?
- Exact OEM Fit: Bags manufactured to the exact internal dimensions of all major centrifuge brands: Alfa Laval, Heinkel, ANDRITZ, Ferrum
- Material Traceability: Full batch traceability on fabric and thread for pharmaceutical and regulated industry compliance
- Rapid Turnaround: Standard sizes held in stock for emergency replacements; custom bags in 5–10 working days
- Competitive Pricing: Direct-from-manufacturer pricing makes Skytech bags significantly more economical than OEM replacement spares
- Technical Support: Engineering support available to optimise micron rating and fabric construction for your specific centrifuge and process
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