The Three‑Jaw Polyester Fabric Air Filter Cartridge 185×613 is a high‑performance cylindrical filtration element designed for industrial dust collection systems requiring rapid, tool‑free filter changeovers. This pleated polyester filter cartridge is manufactured to your exact specifications, delivering the filtration area, efficiency, and installation convenience that standard cartridges cannot match.
The defining feature of this filter cartridge is its three‑jaw (three‑claw / three‑ear) bayonet connection. This quick‑change mounting interface allows the cartridge to be installed or removed from either the clean air side or the dirty air side of the dust collector without tools. The three‑jaw design is particularly advantageous in applications requiring frequent filter maintenance—operators can simply rotate the cartridge into the mating receiver until the jaws lock securely into place, then reverse the motion for removal. This eliminates the need for bolt‑down flanges, threaded connections, or clamp bands, significantly reducing maintenance downtime and labor costs.
| Outer diameter | 185 mm |
| Height | 613 mm |
| End caps | Plastic |
| Filter layer | Polyester fabric |
| Connection | Three-jaw chuck connection |
| Origin | Henan, China |
| Manufacturer | Huahang Filter |
This is a kind of custom air filter. If you want to customized the filters, please send details to us to get the price.
The Polyester Fabric Air Filter Cartridge is ideal for large-scale industrial and commercial air filtration applications:
Industrial HVAC Systems: Air handling units (AHUs) in factories, warehouses, and manufacturing plants.
Dust Collectors: Pre-filtration or main filtration for baghouses and cartridge collectors.
Ventilation Systems: Workshops, paint booths, welding areas, and food processing facilities.
Agricultural Ventilation: Greenhouses, livestock barns, grain dryers, and crop storage.
Air Compressor Intakes: Protecting large rotary screw compressors from dust and debris.
Power Generation: Gas turbine intake filtration and ventilation for generator rooms.
Mining & Cement: Coarse dust filtration in heavy industrial environments.
Choose the Custom Paper Filter when you need the lowest upfront cost for a perfect fit in a dry environment with a defined maintenance schedule. It’s a simple “remove and replace” solution.
Choose a Washable Polyester Filter if you operate in a high-dust, moist, or demanding environment where the long-term savings of reusability outweigh the higher initial cost and need for cleaning.

Huahang Filter is a global manufacturer of industrial filtration products, established in 2003. We operate a modern 26,000㎡ ISO-certified facility and export to more than 120 countries, with exports accounting for over 80% of our business.
As a direct manufacturer, Huahang Filter provides factory‑direct pricing without distributor markups and maintains full material traceability with documentation available upon request. The polyester fabric air filter cartridge is available as a standard stocked size, or can be custom‑manufactured to any dimension, media grade, or end‑cap configuration based on customer drawings or samples.
Choosing Huahang Filter’s air filter cartridge means investing in reliability, cost savings, and peak baler performance.

Q: Can I use this filter for oil mist or sticky dust?
A: Standard PET may blind with oily contaminants. For oil mist applications, we recommend oleophobic-coated PET media that resists oil adhesion. For very sticky dust, disposable synthetic or glass fiber filters may be more suitable.
Q: Is this filter compatible with high-temperature air streams?
A: Standard PET media is rated for continuous operation up to 100°C (212°F) . For higher temperatures (e.g., drying ovens, exhaust), consider our fiberglass or sintered metal filter options.
Q: How do I know when to clean the filter?
A: Monitor the pressure differential across the filter housing. When ΔP increases by 1.5–2.0 times the clean pressure drop, it is time to clean. Visual inspection for visible dust buildup is also helpful.
Q: Can I get this filter in other sizes or with custom end caps?
A: Absolutely. Huahang Filter specializes in custom sizes and configurations. Provide your dimensional specifications, end cap style, and seal type for a perfect fit.