Fits All OEMs
Glatt, Niro-Aeromatic, Vector and more.
Conductive or Not
Anti-static and standard media.
Inspected and Tagged
Traceability on every pharma bag.
Built to Your Drawing
Any style, shape or size.
FBD Filter Bags Made to Fit Your Dryer
AFF manufactures fluid bed dryer bags for the chemical, pharmaceutical and food processing industries, with conductive and non-conductive materials to fit any application.
How Fluid Bed Dryer Filter Bags Work
In a fluid bed dryer or granulator, hot air flows up through the product bowl and lifts the powder or granules into a fluidized bed for drying powders, granulation, agglomerating or spray coating. The air carries moisture and fine particles up into the drying chamber, where the FBD filter bag lets the air exhaust and retains fine powder particles so they fall back into the batch.
That makes the filter bag critical to yield, drying efficiency, product purity and product quality. A bag that fits poorly or loses efficiency lets product escape, while a blinded bag restricts airflow and slows the drying process. Good particle retention also protects against product contamination. The right filter media, a precise fit to the filter housing and clean construction keep every batch on spec.
Fluid Bed Dryer Filter Media
We carry a wide variety of conductive and non-conductive materials to fit any application, and pharmaceutical bags use lint free materials. Air permeability values come from our filter media chart. Polyester is typically rated to about 275°F continuous; tell us your inlet air temperature, product and particle size and we will recommend the right media.
Pharmaceutical Fluid Bed Dryer Bags
AFF manufactures a wide range of fluid bed dryer bags for the pharmaceutical industry using conductive and non-conductive lint free materials. Each filter bag is inspected and tagged prior to shipping to avoid cross contamination and provide traceability.
We can manufacture any style or shape, from single bags to multi-finger FBD finger bags, and provide significant savings over OEM bags. Learn more about pharmaceutical and nutraceutical filtration.


Antistatic Fluid Bed Dryer Filters
AFF stocks anti-static versions of our nonwoven polyester felts and woven polyester satin material used in fluid bed dryer filters. Both materials feature a stainless steel scrim in a checkerboard pattern, which, along with a ground wire in the seam, dissipates static through the entire filter.
These antistatic materials add to the wide range of filter media AFF keeps on hand to address your specific dust type and give you the best possible filtration.
Replacement Bags for Every Fluid Bed Dryer
We manufacture bags to fit all OEMs, including Glatt, Niro-Aeromatic, Fluid-Air, Vector and Fitzpatrick fluid bed dryers and granulators. Send us a drawing, sketch or CAD file of your current bag and we will manufacture a proper fitting replacement.
Every fluid bed dryer filter bag is built to your dimensions, cuff style, closure and stitched seam construction so the FBD bag seals in your filter housing the same way the original did. Need something unique? See our custom production capabilities.

Fluid Bed Dryer Bags by Industry
We make fluid bed dryer filters for pharmaceutical, nutraceutical, chemical and food processing plants.
More Filtration From AFF
Fluid bed dryer bags are made to order. Explore the filter media, custom production and filter bags behind them.
