Air Filters

Model: 23509136

Core Technical Specifications

Filtration Grade: D Grade Solid Particulate Pre-Filter

Filtration Precision: Captures all solid contaminants ≥1μm, including pipeline rust, oxide scale, metal shavings, workshop dry dust and solid particles

Filtration Efficiency: 99.999% removal efficiency for 1μm solid particles

Filter Media: Multi-layer composite gradient borosilicate glass fiber structure, outer non-woven fabric buffer layer, inner lining fabric, double-layer 304 stainless steel support mesh

Standard Dimension Reference

Outer Diameter: 72 mm

Overall Length: 465 mm

Mounting Method: Bayonet twist-lock quick installation

Continuous Operating Temperature: 2℃ ~ 66℃

Standard Service Life: Replace after 4,000 operating hours or 12 months, whichever comes first

Key Product Advantages

Front primary barrier to extend service life of downstream high-cost filter cartridges

As the first stage of the whole compressed air filtration system, this D-grade pre-filter intercepts most coarse rust, scale and solid impurities in advance. It drastically reduces the contamination load of Grade10, Grade07 coalescing filters and AC activated carbon filter, cutting overall maintenance frequency and spare parts procurement cost.

Super large dust holding capacity suitable for heavy-dust industrial environments

Thick multi-gradient glass fiber matrix provides huge dust storage volume, avoids rapid clogging in machining, forging, mining and other dusty workshop conditions, effectively extending replacement maintenance cycles.

Low airflow resistance reduces air compressor energy consumption

Large-area deep-pleated filter media optimizes internal airflow channels, maintains stable low pressure drop under 24/7 full-load continuous operation, lowers extra operating load of air compressor units and saves long-term electricity costs.

Oil & hydrolysis resistant composite structure prevents secondary pipeline contamination

Hydrolysis-proof, oil-repellent glass fiber matched with stainless steel support mesh avoids fiber shedding, eliminating secondary pollution to downstream coalescing layers, precision pneumatic valves and spraying equipment.

Working Principle

Raw unpurified compressed air first passes through the outer non-woven fabric buffer layer, then flows into multi-gradient borosilicate glass fiber dust-retention media. All solid particles larger than 1μm are trapped and stored inside the fiber matrix. Dust-free pre-cleaned air flows to subsequent coalescing filters for liquid oil and water removal treatment.

Application Industries

widely applied in:

General machining workshops, forging plants, mining facilities, textile integrated mills, packaging printing factories, ordinary automotive repair spray booths, medium-scale factory centralized compressed air stations, construction machinery air supply systems, pneumatic automation production lines.