The Six‑lug Polyester Fabric Air Filter Cartridge 341×660 is a high‑capacity cylindrical filtration element designed and manufactured to your exact specifications for industrial dust collection systems handling high dust concentrations and continuous operation demands. This pleated polyester filter cartridge is engineered to provide the filtration area, mechanical integrity, and dimensional precision that standard off‑the‑shelf elements cannot deliver.
The six‑lug end cap (also referred to as six‑ear flange or six‑bolt flange) is the defining feature of this product. The six evenly spaced lugs provide a robust, bolt‑down sealing interface that secures the cartridge firmly in the dust collector tube sheet. Unlike push‑to‑lock or snap‑band connections, the six‑lug design distributes clamping force evenly around the perimeter of the end cap, creating a consistent seal that prevents unfiltered air bypass and withstands the mechanical stresses of repeated pulse cleaning cycles without loosening or leaking.
| Outer diameter | 341 mm |
| Height | 660 mm |
| End caps | Plastic |
| 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: What is the six‑lug design, and why is it important for my application?
A: The six‑lug (or six‑ear) design consists of six evenly spaced mounting tabs (lugs) extending from the outer circumference of the end cap. Each lug contains a bolt hole. The cartridge is secured to the tube sheet using six bolts or studs passing through these lugs.
This design is critical for applications requiring a positive seal under high differential pressure or frequent pulse cleaning. The bolt‑down interface distributes clamping force evenly around the perimeter of the gasket, creating a consistent seal that prevents unfiltered air bypass.
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: Can this polyester fabric filter be cleaned and reused?
A: No – this is a disposable filter element. The polyester fabric media is designed for single use and should be replaced when the differential pressure reaches the change‑out point. Do not attempt to wash or blow it clean, as this will damage the media and reduce filtration efficiency.
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.
