Square End Cap Pleated Filter Cartridge for Industrial Dust Removal & Self-Cleaning Air Filtration

For industrial pulse jet dust collection systems, reliable filter cartridges directly decide dust removal efficiency, equipment stability and emission compliance. Our square end cap filter cartridge, commonly named square cap dust filter cartridge, is specially designed for side-entry installation self-cleaning dust collectors. Compared with conventional round filter cartridges, its square end cap structure provides perfect matching for square opening filter housings, realizing easy installation, tight sealing and stable operation in heavy dust industrial environments.

The square end cap adopts high-strength composite plastic or galvanized metal material. It is bonded firmly with pleated filter media and inner support cage. The integrated sealing design eliminates air leakage between filter cartridge and dust collector housing, preventing unfiltered dusty air bypass and guaranteeing stable filtration efficiency. The pleated media maximizes filtration area within limited space, improving dust holding capacity and extending service cycles.

Filter media options to match different working conditions

• Standard Polyester Media: General industrial dust filtration, good tensile strength, cost-effective for normal temperature dry dust such as stone dust, wood dust and ordinary grinding dust.
• Flame Retardant Polyester Media: For environments with fire risk, suitable for welding fume, aluminum powder, metal cutting dust and cement plant dust collection.
• Antistatic Polyester Media: Effectively release static electricity, prevent dust explosion hazards, widely used for flour, plastic powder, chemical powder and combustible dust working sites.
• PTFE Membrane Coated Media: Superfine surface filtration, high dust release performance during pulse jet cleaning, suitable for ultra-fine dust, submicron particles, low emission requirements.
• Oil & Water Repellent Media: Water and oil resistant treatment, ideal for humid, oily dust conditions such as asphalt mixing plant and boiler flue gas pretreatment.

Key product advantages

• Square end cap customized design: Perfect fit for side mounted self-cleaning dust collector, simple push-in installation, fast replacement

• Stable sealing performance: Built-in rubber gasket on square cap, effectively avoid air leakage and improve dust collection efficiency.

• High structural rigidity: Perforated metal inner support cage prevents media collapse under high airflow and frequent pulse blowing.

• Excellent pulse cleaning performance: Pleated structure allows dust to be blown off easily during air pulse cleaning, reducing cartridge resistance and lowering maintenance frequency.

• Wide temperature adaptability: Standard polyester media works under continuous 80℃; special high temperature resistant media options available for 160℃ working condition.

• Custom dimensions available: We can produce different square cap sizes, cartridge height, pleat counts according to your dust collector housing drawing.

Typical application scenarios

• Steel plant, cement factory, power plant air intake and flue gas dust collection
• Sandblasting, shot blasting and metal surface treatment workshop
• Asphalt mixing station, mining crushing and screening dust removal
• Woodworking, furniture manufacturing dust collection
• Chemical, plastic, food powder processing industry
• Waste incineration and industrial waste gas treatment facilities

Quality control & supporting documents Before shipment, every filter cartridge will go through visual inspection, dimension check, media integrity and sealing test. We can provide material test certificates, dust efficiency test reports and technical datasheets for project tender and site acceptance. OEM replacement filter cartridges for many well-known dust collector brands are available.

Custom service support We accept OEM & ODM customization. Customers can provide housing drawings, working temperature, dust characteristics and required filtration precision. Our filtration engineers will select proper media and recommend suitable specifications. Custom printing of logo and part number on square end cap is available for bulk orders. Different packaging solutions can be arranged for sea transportation.

Full container bulk orders are welcomed. Sample cartridges can be supplied for field performance testing before mass production. All matching gaskets and spare accessories are packed together for delivery.

If you are dust collector manufacturer, environmental engineering contractor or factory procurement officer for industrial air pollution control, please send your project parameters, including dust type, working temperature, required size and quantity. Our technical team will recommend the most suitable square cap filter cartridge solution and offer competitive bulk price.

Contact us to receive full technical datasheet, performance parameters and certification documents for your dust removal project.

Get Your Square End Cap Filter Cartridge Project Quotation

Send your dust collection project parameters or equipment drawings to our engineering team. We provide free technical consultation, media selection guide, performance test reports and custom sizing service. Request bulk quotation now.