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Advanced Solutions for Superior Filtration Efficiency
As a leading manufacturer of filtration solutions, Hebei Fangyu specializes in producing high-performance oil filter paper materials. With over 15 years of experience in the filtration industry, we serve global clients across automotive, industrial, and food processing sectors.
Oil filter paper is a specialized filtration medium engineered to remove contaminants from various oil types, including lubricating oils, hydraulic fluids, edible oils, and fuel oils. This critical component in filtration systems protects machinery and ensures operational efficiency by capturing microscopic particles that could cause engine wear or product contamination.
Raw materials: Wood pulp, Phenolic filter paper, Acrylic filter paper, Special filter paper. Engineered for high flow rates and exceptional particle retention.
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The performance of oil filter paper is determined by several critical parameters that directly impact filtration efficiency and system longevity:
| Parameter | Test Method | Standard Value | Premium Range | Significance |
|---|---|---|---|---|
| Basis Weight | ISO 536 | 80-100 g/m² | 85-95 g/m² | Determines durability and flow rate |
| Air Permeability | ISO 5636-5 | 60-150 l/m²/s | 85-120 l/m²/s | Higher flow at lower pressure drop |
| Mean Pore Size | ASTM F316 | 20-50 µm | 30-45 µm | Determines particle retention efficiency |
| Tensile Strength | ISO 1924-2 | 4.5 kN/m | 6.0-8.0 kN/m | Wet strength durability |
| Max Operating Temperature | ISO 5630-1 | 120-170°C | 150-220°C | Stability in high-heat environments |
| Filtration Efficiency | ISO 16889 | 95-98% at 10µm | 99% at 5µm | Contamination removal capability |
| Dirt Holding Capacity | ISO 4548-12 | 120-180 g/m² | 150-250 g/m² | Extended service life |
| Resistance to Oil Flow | ISO 3968 | 2.0-3.5 kPa | 1.5-2.5 kPa | Lower energy consumption |
The composition of oil filter paper significantly impacts its performance characteristics. Advanced materials offer tailored solutions for specific applications:
Economical solution for general-purpose applications with excellent absorption properties. Ideal for medium-viscosity oils at moderate temperatures.
Enhanced thermal stability and chemical resistance for demanding industrial applications. Perfect for diesel filter paper requirements.
Superior water repellency and structural integrity in humid environments. The material of choice for marine and hydraulic systems.
Cutting-edge technology combining cellulose fibers with polymer nanofibers for superior filtration efficiency and extended service life.
Engine oil filtration systems require oil filter paper with exceptional dirt holding capacity and consistent particle removal efficiency to protect critical engine components.
Specifically engineered filter papers for high-temperature frying oils ensure food safety standards while extending oil life in commercial kitchens.
Critical protection for sensitive hydraulic components using oil filter paper with superior water separation properties and high dirt holding capacity.
The global oil filter paper market is projected to grow at 5.8% CAGR through 2028, driven by increasing industrial automation and stricter environmental regulations. Key technological advancements include:
Phenolic resin treatment significantly enhances thermal stability and chemical resistance. While standard wood pulp filter paper typically withstands temperatures up to 120°C, phenolic-treated papers can operate at 150-220°C with improved structural integrity. The resin forms a cross-linked polymer matrix that reinforces cellulose fibers, resulting in a 60% increase in wet tensile strength and superior resistance to oils with high additive packages.
Pore size distribution determines the filter's beta ratio (β) and filtration efficiency. A controlled, narrow pore size distribution provides more predictable and consistent filtration performance compared to media with wide variations. For critical applications like hydraulic systems or diesel filter paper, we recommend media with a tight pore size distribution between 30-45µm for optimal protection of precision components. This ensures high particle capture efficiency (β₅≥200) while maintaining acceptable flow rates.
Food-grade filter papers must comply with FDA 21 CFR 176.170 for indirect food contact and EU Regulation 1935/2004. Key requirements include: - Migration limits for heavy metals below 0.1mg/dm² - No detectable migration of resin components at frying temperatures - Certified manufacturing under ISO 22000 or FSSC 22000 food safety systems Our food-grade papers undergo third-party testing for heavy metal content and migration characteristics, with full documentation available.
Basis weight (g/m²) selection involves balancing flow requirements, pressure constraints, and service life expectations. Heavier media (90-110 g/m²) offer greater dirt holding capacity for extended service intervals in high-contamination environments like construction equipment. For applications requiring low pressure drop such as aviation oil systems, lower basis weight papers (70-85 g/m²) paired with optimized permeability profiles offer better flow characteristics. We recommend consulting our technical team with specific viscosity and pressure drop requirements.
Synthetic oils (PAO, PAG, esters) require media with improved resistance to chemical attack. Key compatibility parameters include: - Free formaldehyde content below 0.1% (BS ISO 15320) - Extractable resin content under 0.3% (ISO 15788-1) - Accelerated aging stability (168hrs at 150°C) - Compatibility testing per DIN 51524 standards Our acrylic resin-treated papers demonstrate exceptional compatibility with Group IV and V synthetics.
Modern diesel filter paper employs gradient density technology with multiple layers optimized for specific functions: 1. Pre-filtration layer: 60-80 µm porosity for water coalescence and large particle removal 2. Secondary layer: 25-40 µm porosity with hydrophilic/hydrophobic separation 3. Fine filtration:
Reputable manufacturers should hold at minimum: - ISO 9001:2015 Quality Management Systems - ISO 14001 Environmental Management - IATF 16949 for automotive suppliers - ISO 17025 accredited testing laboratory - Material traceability per ISO 16270 Hebei Fangyu exceeds these requirements with additional accreditations including ISO 22000 for food-grade media and API/SAE testing certification.
Thickness:0.2-6 mm or Customized
Strand Thickness:0.5-8mm
Swd:2.5-100mm Lwd: 4.5-200mm
Surface Treatment:Powder Coated,Galvanized
MATERAL: PHENOLIC PAPER
MELT-BLOWN PBT
NON-WONEN LAMINATES
DIESEL FUEL FINE FILTERATION GRADE
APPLICATION : FUEL OIL WATER SEPERATION FILTER MEDIA
Material: Electrostatic cotton with activated carbon
PET/PP with Activated Carbon
Basic weight: 200-800g/m2
Application: Cabin Air Filters Panel Air Filters, Filter Cartridge, etc.
RAW MATERIAL: Polypropylene
PROCESS TECHNOLOGY: Melt-blown non-woven
RANGE OF EFFICIENCY: M5 ~ H11
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