Import Air Filter — Buy in Bulk from Supplier in China

This air filter from Tenghua Railway Material And Fitting Factory Of Xingtai City, based in Xingtai, Hebei Province, is constructed with a multi-layered media combining metal mesh and filter paper sponge materials. The metal pre-screen provides structural rigidity and coarse particulate deflection, while the cellulose or synthetic filter paper sponge handles fine dust retention. Typical initial gravimetric arrestance for this construction falls in the 85-95 percent range at standard test air velocities, with final resistance at rated airflow typically 250-400 Pascals. The filter is designed as a flat-panel or cylindrical cartridge replacement element for railway, industrial compressor, and general HVAC applications.

The metal component is typically mild steel or aluminium expanded mesh, phosphate-treated or epoxy-coated for corrosion resistance. The filter paper sponge media is a bonded cellulose-polyester blend with resin reinforcement, common in Chinese domestic and export-grade filters. Pleat count, depth, and spacing determine holding capacity and service interval. Standard pleat depths range from 15 mm to 50 mm. Media thickness typically runs 0.3 mm to 0.6 mm. The construction is non-sealable and intended for disposable replacement rather than regenerative cleaning. Temperature tolerance for standard cellulose media is typically 80 degrees Celsius maximum; synthetic variants may extend to 120 degrees Celsius.

Railway locomotive HVAC systems, diesel engine intake pre-cleaners, and industrial compressor housings are the primary buyer segments. The supplier lists no specific MOQ, price, or lead time in the source data. Buyers should confirm filtration grade (coarse or medium per EN ISO 16890 or ASHRAE 52.2), exact dimensions, and connection geometry before ordering. Packaging and Incoterms require direct negotiation. The factory address in Xingtai suggests inland manufacturing with potential Tianjin or Qingdao port shipment.

Tenghua Railway Material And Fitting Factory Of Xingtai City is located at the Backyard Of Shuxiang Garden, Xingtai 054001, Hebei Province, China. The supplier carries an imported tier classification and a harbor trust tier, with a response rate of 0.00 percent and zero average response hours recorded. These signals indicate limited engagement data is available through the platform. The factory name explicitly references railway materials and fittings, suggesting core competence in rolling stock consumables rather than broad industrial filtration.

The supplier profile does not state year of establishment, employee count, revenue, export licence details, or named clients. No certifications are confirmed in the source data. Buyers should independently verify ISO 9001 quality management, IRIS certification for railway suppliers, or specific product test reports. The Xingtai location places manufacturing approximately 400 km southwest of Beijing, with road freight to Tianjin Port being the standard export route. Direct factory audit or third-party inspection is advisable given the low response signal.