The polyester fabric air filter cartridge is a pleated cylindrical filter element designed for industrial dust collection systems, air compressors, gas turbine intakes, and ventilation equipment. With the customized dimensions, this air filter cartridge is dimensionally compatible with a range of dust collector housings and filtration units that accept standard 121 mm diameter elements.
The filter media is constructed from 100% spun‑bonded polyester non‑woven fabric—a synthetic material that offers better mechanical durability, moisture resistance, and chemical compatibility than cellulose or paper‑based alternatives. Polyester media does not degrade when exposed to humid air or oil mist, unlike paper elements that soften and collapse under such conditions.
| Outer diameter | 121 mm |
| Height | 404 mm |
| End caps | 304 Stainless steel |
| Filter layer | Polyester fabric |
| Working temperature | -20~+110℃ |
| 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.
