Dust Collector Filter Bags
American Fabric Filter manufactures replacement and custom filter bags for dust collectors, baghouses and vent applications. Choose a stock bag sized for your collector or have one built to your specs in the right felt or membrane media for your dust.
Made In-House
Bags cut and sewn by our own manufacturing team.
Built to Your Specs
Any diameter, length, top, bottom or inlet.
Down to 1 Micron
Singed felt and membrane media for fine dust.
Stock Replacement Fits
Stock bags for Delta, Kea, Lobo and more.
Three Ways to Get the Right Filter Bag
Most customers are replacing a worn OEM bag, upgrading to a better filter media, or solving a dust problem a stock bag cannot handle.
Why the Right Filter Bag Matters
A dust collector can pull wood chips, sawdust and fine sander dust out of the work area, but a poorly designed or worn-out filter bag can blow the finest particles right back into the shop. The woven bags supplied with many collectors are a compromise: openings large enough to pass air efficiently also pass dust. A tighter weave traps more dust but creates backpressure and cuts suction.
Needled felt solves that trade-off. For wood dust we most often recommend polyester felt with a singed finish. The singed surface lets a thin layer of fine dust, called the dust cake, build on the face of the bag. That dust cake does the actual filtering, keeps particles from embedding in the fibers (blinding) and sloughs off as it gets heavy, so the bag keeps breathing and your collector runs at full capacity.
Size matters just as much as media. A bag that is too small drives dust deep into the fabric under pressure. A correctly sized bag lets dust-laden air slow down and spread across enough surface area to release clean air. Ideally, the total CFM rating of the bag should be 50 to 100 percent larger than the rated air output of the unit.
Signs your bag needs attention: suction that stays low after cleaning, rising pressure drop, visible dust leaking from seams or fabric, and holes, wear or caked media. See our guide to the signs it is time to replace your filter bags and dust collector bag care.
Types of Dust Collector Bags We Make
One shop for the upper filter bags, lower collection bags and specialty filters your system needs.
Replacing an OEM bag on another brand? Many shops run Jet, Grizzly, Powermatic or Shop Fox collectors, or a cyclone separator with a filter bag on the outlet. Send us the specifications of your current bag and we will build a compatible replacement filter bag to fit, often in a better felt than the original woven bag.
Choosing Filter Bag Material
The right media depends on particle size, moisture, temperature and how static-prone your dust is. These are the materials we use most. If you are unsure, tell us what you collect and how much air your system moves, and we will recommend the media.
Want to go deeper? Read which fabric filter media is best for industrial dust collection or browse our filter media.
Built to Your Measurements
If a stock bag will not fit, we will make one that does. We manufacture custom filter bags for small shop collectors, OEM equipment and industrial systems, with inlets, outlets, flanges, support hardware, windows and other options located where you need them.
Send us your old bag, a drawing or your measurements, or read when you need custom filters. For complex fabrications, see our custom production capabilities.
Vent Filter Bags for Dust Control
When grain, flour, sugar or other dry powders are milled, mixed or pneumatically conveyed, the displaced air carries dust with it. A properly sized vent bag lets that air escape while keeping dust out of your facility and protecting indoor air quality.
The most common use is pneumatic conveying into a silo: as product fills the silo, displaced air has to vent, and an undersized or wrong-material bag restricts flow or releases dust. Vent bags are also used on mixers, vacuum discharges and depanners. We stock a wide range of materials, including anti-static and FDA-compliant fabric options, and size each bag to your airflow and dust type.
Filter Bags for Every Dust-Producing Industry
From cabinet shops to bulk powder plants, we match bag media and construction to the dust and the duty cycle.
Shop Dust Collector Bags & Accessories
Replacement filter bags, collection bags, poly bags, hose clamps, cinch belts and leak detection supplies, ready to order.
