Resin Impregnated Wood Pulp Industrial Filter Paper High Dust Holding For Construction Machinery Air Filter Cartridge

With stricter global industrial emission standards and equipment maintenance requirements, high-performance filter paper has become the core raw material for manufacturing air filter elements, hydraulic filter cartridges, dust removal filters and liquid purification filters. Ordinary inferior filter paper has obvious defects such as uneven pore distribution, poor tensile strength, easy moisture softening, small dust holding capacity and low filtration precision, which will cause engine wear, equipment pipeline blockage and frequent filter replacement. To solve the long-standing pain points of unstable filtering performance and short service life of traditional filter media, our factory launches full-series industrial filter paper, providing stable, high-efficiency and customizable filter raw material solutions for global filter manufacturers, machinery spare parts suppliers and environmental protection enterprises.

Industrial filter paper is a special functional fiber material processed by papermaking and resin impregnation treatment. It is the core medium to intercept solid particles, dust, oil mist and impurities in gas and liquid. Different from ordinary paper, our filter paper adopts precise fiber matching and high-temperature curing process, with uniform internal pore structure, balanced air permeability and interception efficiency. After special functional modification such as waterproof, oil-proof and anti-static, it can adapt to various harsh working conditions of high dust, high humidity, oil mist and static flammable dust, and is widely used as raw material for all kinds of finished filter elements.

Main Product Series & Material Characteristics

We develop multiple filter paper grades to match different filtration equipment and working media, covering air filtration, hydraulic oil filtration, dust removal and liquid purification.

1. Resin-Impregnated Wood Pulp Filter Paper

Made of high-grade imported wood pulp with double resin dipping treatment, excellent dry and wet tensile strength, not easy to break after pleating. Uniform micropores balance air permeability and dust interception, large dust holding capacity, cost-effective. Mainly used for automobile trucks, construction machinery, generator air filter elements and general industrial ventilation filters.

2. Waterproof & Oil-Repellent Composite Filter Paper

Added hydrophobic and oleophobic additives during production, effectively resist water vapor, oil mist and muddy air. It will not absorb water and collapse in humid, rainy and off-road mining environments, maintaining stable filtration resistance. Ideal for engineering machinery, agricultural vehicles, outdoor dust removal equipment and marine air intake filters.

3. Glass Fiber High Precision Filter Paper

Ultra-fine glass fiber layered composite structure, high filtration precision up to 0.3μm, high temperature resistance, corrosion resistance, low resistance and long service life. Suitable for hydraulic oil filters, precision compressor filters, high-temperature waste gas dust removal and industrial high-efficiency purification filters.

4. Anti-Static Filter Paper

Conductive fiber blending treatment, eliminate static accumulation on the paper surface, prevent fine dust electrostatic adhesion and avoid static spark risks. Specialized for coal powder, flour, aluminum powder and other flammable dust workshop dust removal filters.

5. Liquid Filter Paper

High wet strength fiber formula, strong resistance to oil, cutting fluid and chemical liquid erosion, multi-level filtration speed options for industrial circulating oil, food liquid, electroplating solution purification.

Core Production Technology & Performance Advantages

Uniform fiber distribution and stable pore size. Strictly control fiber mixing and papermaking process to avoid local over-filtration or leakage of fine particles, ensuring consistent filtering effect of each batch of filter elements.

Strong pleating stability. High-temperature resin curing improves paper rigidity, no collapse or deformation after multi-layer folding, maximize effective filtering area and extend filter service cycle.

Large dust holding capacity. Three-dimensional internal fiber gap stores more dust, reduce filter blockage frequency and lower equipment maintenance cost.

Diversified functional treatment. Support waterproof, oil-proof, anti-static, flame retardant and high temperature resistant customized processing to meet special industrial working condition demands.

Stable mechanical strength. Excellent tensile and bursting resistance, no fiber shedding during long-term air flow impact, avoid secondary pollution to engines and precision equipment.

Wide Application Scenarios

• Engine intake filtration: Heavy trucks, excavators, loaders, tractors, diesel generator air filter cartridges
• Hydraulic & oil filtration: Engineering machinery hydraulic filters, compressor oil filters, industrial circulating oil filters
• Dust removal environmental protection: Workshop dust removal filter cartridges, spray booth waste gas filters, industrial dust collectors
• Liquid purification: Cutting fluid filtration, food beverage filtering, sewage treatment precision filtration
• Air purification: Factory ventilation equipment, air conditioning unit filters, industrial clean room filters

Customization & Global Export Service

We support customized filter paper gram weight, thickness, filtration precision, width roll size and functional treatment according to customers’ filter production requirements. Products are supplied in jumbo rolls, flat sheets and pre-cut pieces, matching automatic filter folding production lines. Each batch of filter paper passes strict tests of air permeability, dust holding capacity, tensile strength and interception efficiency before delivery. Waterproof film winding and export wooden pallet packaging prevent moisture and damage during long-distance ocean transportation.

Our industrial filter paper is exported to Southeast Asia, Middle East, Europe, Australia and South America, establishing long-term stable supply cooperation with filter manufacturers, machinery spare parts distributors and environmental protection engineering companies worldwide.

профил компаније

We are a comprehensive manufacturer integrating filter materials, finished filter elements and metal structural products. Our complete product line includes industrial filter paper, air filter elements, activated carbon filter cartridges, hydraulic filters, filter end caps, noise barriers, bridge railings, sports field fences, raised perforated anti-slip plates and drying trolleys. Equipped with professional papermaking, pleating and metal processing production lines, we provide one-stop filtration and metal safety supporting solutions for global industrial customers.