At BAOSHENG FILTRATION TECHNOLOGY, we believe that every excavator's performance starts with clean fluids. Since our founding in 2000, we have dedicated ourselves to mastering the complete manufacturing process of excavator filtration systems—covering air, fuel, oil, hydraulic, and water separation filters. With an 8,300-product catalog and a monthly output of 2 million pieces, our end-to-end in-house production ensures quality at every stage.
Quality begins with materials. We source only the finest inputs: high-grade Baosteel cold-rolled sheets for filter housings, imported multi-layer filter paper from leading global suppliers, specialized PU (polyurethane) glue for superior sealing, and EPDM rubber for gaskets and seals. Each batch of incoming material undergoes rigorous inspection against our ILAC-MRA and CNAS certified standards before entering production.
Our metal processing center features multi-station continuous molds and CNC stamping lines. The Baosteel sheets are cut, punched, and drawn into filter housings and end caps with dimensional accuracy down to ±0.05mm. Stainless steel mesh is woven and shaped into support cores that provide structural integrity under high pressure conditions. This one-time forming approach eliminates weak points and ensures consistent wall thickness across every unit.
The heart of every filter lies in its filtration media. We employ a proprietary fine lamination process that bonds multiple layers of filter paper into a single, high-performance composite. Our film coating technology enhances the media surface, increasing ash holding capacity by up to 40% compared to conventional methods. The pleating process is fully automated, producing uniform pleat heights and spacing that maximize dirt-holding capacity while minimizing flow resistance.
Our injection molding workshop operates around the clock, producing precision end caps, center tubes, and sealing components. The PU glue application system uses robotic dispensing to apply uniform adhesive beads along the filter element circumference. Combined with our radial seal design—utilizing EPDM rubber for its excellent temperature resistance (-40°C to +120°C) and chemical stability—every filter achieves a leak-proof bond between the element and housing.
Assembly lines are organized by product families: air filter lines, oil filter lines, fuel filter lines, and hydraulic filter lines. Each line follows standardized work instructions with in-line quality gates. The dual filter design—pairing a primary and safety filter element—is assembled with precise alignment to ensure seamless airflow or fluid flow dynamics. Every completed assembly passes through automated leak testing, burst pressure testing, and filtration efficiency measurement before moving to packaging.
Finished products are packed in custom carton boxes with foam cushioning, designed to withstand international shipping conditions. Each carton is labeled with product specifications, batch numbers, and traceability codes linking back to raw material lots and production dates. Our logistics team coordinates sea and air freight to over 50 countries, serving more than 8,000 customers worldwide.
| Manufacturing Stage | Key Technology | Quality Standard |
|---|---|---|
| Material Selection | Incoming Inspection | ILAC-MRA / CNAS |
| Metal Forming | Multi-Station Continuous Mold | ±0.05mm Accuracy |
| Media Processing | Fine Lamination & Film Coating | 40% Higher Ash Capacity |
| Sealing | Robotic PU Glue + Radial Seal | -40°C to +120°C Range |
| Assembly | Standardized Work Cells | 100% Leak & Burst Test |
| Packaging | Carton + Foam Protection | International Shipping Grade |
Our manufacturing precision enables compatibility with major excavator brands including CATERPILLAR, HITACHI, KOMATSU, HYUNDAI, KOBELCO, VOLVO, DOOSAN, SANY, LIUGONG, XCMG, CASE, and SUMITOMO. Each OEM-compatible filter is manufactured to meet or exceed original specifications, backed by our MA certification and documented quality records.
From Baosteel raw sheets to the final leak test, every excavator filter from BAOSHENG reflects 24 years of manufacturing excellence. Our integrated full-process approach—controlling every step in-house—gives our customers the confidence of consistent quality, reliable supply, and competitive pricing. Contact us today to discuss your filtration requirements or request a factory tour.
Τηλ.:: 15211040646
Greek
