Replacement Hydraulic Filter Element Glass Fiber Stainless Steel Hydraulic Oil Filter Cartridge For Construction Machinery Hydraulic Station

Key Product Advantages

1. Premium Filter Media Options

• Micro-Fiberglass (Borasilicate Glass) — High-performance media with absolute filtration ratings from 1μm to 25μm; βx(c) ≥ 1000 efficiency; the industry standard for high-pressure and critical-service hydraulic systems.
• Cellulose / Cellulose-Synthetic Blend — Cost-effective media with nominal ratings from 10μm to 100μm; suitable for return-line and general-service applications where absolute efficiency is not required.
• Stainless Steel Woven Wire Mesh — Reusable, cleanable media with ratings from 5μm to 500μm; ideal for high-temperature, high-pressure, and corrosive environments; withstands repeated backwashing.
• Sintered Metal Fiber / Sintered Powder — All-metal media with absolute ratings from 3μm to 100μm; exceptional mechanical strength, thermal shock resistance, and chemical compatibility; suitable for extreme conditions.
• Multi-Layer Composite Media — Combined layers of fiberglass, wire mesh, and support mesh; delivers high efficiency with maximum dirt-holding capacity and structural stability under cyclic pressure.
• Water-Absorbing Media — Specialized media with water-removal capability (up to 95% water removal efficiency), suitable for systems prone to water contamination.

2. Advanced Pleating and Structural Construction

• Precision Pleating — Uniform pleat height and spacing achieved via rotary pleating machines, maximizing effective filtration area and ensuring even contaminant distribution across the media.
• Pleat Support — Perforated metal inner tube and outer wrap provide radial support, preventing pleat collapse under high differential pressure and flow surges.
• Robust End Caps — Available in carbon steel (zinc-plated), stainless steel (304 / 316), or engineered plastic (PA66 / POM); bonded with high-strength epoxy adhesive or laser-welded for a leak-free, high-pressure seal.
• Center Tube / Inner Liner — Perforated steel or stainless steel core with optimized open area (≥ 40%) provides structural support while minimizing flow restriction.
• Sealing Elements — Nitrile (NBR), Viton (FKM), EPDM, or silicone O-rings and gaskets ensure leak-tight installation across a wide temperature and fluid compatibility range.
• Integrated Valves (Optional) — Bypass valves (cracking pressure 1.0 / 2.0 / 3.5 bar), anti-drainback valves, and differential pressure indicators can be integrated into the element assembly.

3. Performance Characteristics

• High Filtration Efficiency (β Ratio) — Absolute ratings from β1(c) ≥ 1000 (1μm) to β25(c) ≥ 1000 (25μm), tested per ISO 16889 (multi-pass method); nominal ratings available from 3μm to 100μm.
• High Dirt-Holding Capacity — Optimized media area and pleat geometry deliver up to 30–50% more dirt-holding capacity than standard elements, extending service intervals and reducing maintenance costs.
• Low Pressure Drop — Engineered flow paths and high-open-area support tubes minimize initial and final pressure drop, reducing energy consumption and preventing cavitation.
• High Collapse / Burst Pressure — Elements rated for differential collapse pressure from 10 bar to 210 bar (depending on size and construction), tested per ISO 2941.
• Fatigue Resistance — Designed to withstand cyclic pressure fluctuations (pressure fatigue) per ISO 2941, ensuring long service life in systems with frequent load changes.
• Wide Temperature Range — Standard elements: -30°C to +120°C; high-temperature stainless steel / special seal elements: up to +200°C; low-temperature arctic-grade elements: down to -55°C.
• Fluid Compatibility — Compatible with mineral oils, synthetic fluids (PAO, ester, phosphate ester), biodegradable fluids (HEES, HETG, HFDU), and water-glycol solutions.

4.Core Advantages

• High filtration efficiency, stable performance under long-term high pressure
• Large contaminant holding capacity, longer service cycle
• Reinforced support structure, resistant to hydraulic impact, not easy to deform
• Multiple sealing materials, effectively avoid oil bypass leakage
• Interchangeable with most famous brand standard hydraulic filter elements
• ISO quality control, each batch tested before delivery

5.Application Scenarios

• Excavator, loader, crane and other construction machinery hydraulic systems
• CNC machine tools, injection molding machines, hydraulic stations
• Steel plant, power plant, mining equipment, marine machinery
• Agricultural machinery, logistics forklifts, wind power equipment