Dust-Free Granulation and Drying for Pharmaceutical and Food Industries

Skytech Ultrafab Fluid Bed Dryer (FBD) Bags are the critical filtration component in pharmaceutical, nutraceutical, food, and chemical granulation equipment. Manufactured from antistatic needle-punched polyester or polypropylene media with heat-set surface treatment, FBD bags capture fine product dust during the fluidisation process, ensuring zero product loss and contamination-free operation. Available with retaining rings, zippers, or velcro closures to fit all major FBD OEM designs including GEA, Glatt, Aeromatic, and ACG.

What Are Fluid Bed Dryer (FBD) Bags?

Fluid Bed Dryer Bags are the filter bags installed in the expansion chamber of a fluid bed dryer or granulator. As hot air fluidises the product bed, fine dust particles are carried upward into the expansion chamber where the FBD bags intercept and retain them. The bags are periodically shaken or pulse-cleaned to return the captured dust back to the product bed. In pharmaceutical applications, zero product loss and contamination prevention are the primary performance requirements.

Features and Benefits

• Antistatic Construction: Carbon fibre or stainless steel antistatic fibres blended into the needle-felt prevent electrostatic charge build-up — mandatory for solvent-granulation and explosive dust applications
• FDA and cGMP Compliant: FDA 21 CFR-compliant polyester and polypropylene needle-felt grades for direct product contact in pharmaceutical and nutraceutical manufacturing
• Low Extractables: Heat-set finish and chemically clean fibre selection minimise extractable content — essential for pharmaceutical product purity compliance
• Precise OEM Fit: Bags manufactured with retaining rings, zipper closures, or velcro bands dimensioned exactly to each OEM FBD model for airtight, leak-free installation
• High Dust Retention: Dense needle-felt structure captures fine API and excipient dust particles as small as 5 µm — protecting downstream air handling and achieving near-zero product loss
• Easy Cleaning and Inspection: Smooth singed surface facilitates thorough cleaning between product batches — essential for multi-product pharmaceutical manufacturing compliance

Technical Specifications

Applications

• Pharmaceutical Granulation: Wet and dry granulation of API and excipient blends in pharmaceutical fluid bed granulators — zero-tolerance product loss environments
• Nutraceutical and Supplement: Vitamin, mineral, and herbal supplement spray coating and drying with cGMP-compliant filter bag materials
• Food Processing: Spray drying of dairy powders, flavour encapsulates, and instant beverage granules in food-grade fluid bed dryer systems
• Chemical Granulation: Granulation and drying of detergent, fertiliser, and specialty chemical powders where antistatic performance is required
• Tablet Coating: Aqueous and solvent-based film coating in perforated drum and fluid bed coating equipment — capturing over-spray dust from tablet surfaces

Why Choose Skytech Ultrafab for Fluid Bed Dryer (FBD) Bags?

• Pharmaceutical Expertise: 20+ years of FBD bag supply to leading pharmaceutical manufacturers — deep knowledge of cGMP documentation and cleanroom-compatible packaging requirements
• Full OEM Range: Bags available for all major FBD brands in stock or on short lead time — GEA, Glatt, Aeromatic, ACG, Niro, and custom vessels
• Material Certificates: Full regulatory documentation: FDA compliance letter, material safety data, extractables data, and batch traceability certificates supplied with every order
• Antistatic Verification: Surface resistivity test reports provided for every antistatic FBD bag batch to confirm ESD compliance before installation
• Rapid Response: Emergency FBD bag supply within 24–48 hours from stock for critical pharmaceutical production continuity