This 5-micron sintered SS316L high-pressure hydraulic filter element is produced via powder metallurgy diffusion sintering, forming a three-dimensional interconnected rigid porous skeleton structure. This enables highly uniform pore size distribution and long-term dimensional stability. At the micron-level retention rating, it delivers sustained and controlled capture of fine wear particles and metallic debris in hydraulic media, while eliminating the structural migration and accuracy degradation typical of conventional fiber-based filter media under high-pressure pulsation. The SS316L matrix provides excellent pitting resistance, oxidation resistance, and aggressive fluid tolerance, ensuring consistent filtration performance in complex oil environments.

With respect to the operating characteristics of high-pressure hydraulic fluid power systems, this product maintains structural integrity and filtration stability under the combined effects of high differential pressure and high flow velocity. Its rigid pore network effectively suppresses compression deformation and bypass risks, guaranteeing predictable and continuous filtration. The sintered metal structure also offers robust regenerability, enabling effective removal of deep-bed contaminants via online or offline methods, restoring filtration performance and reducing maintenance uncertainty over extended system operation. The overall outcome is a synergistic integration of high-precision filtration, strong structural load-bearing capacity, and resistance to severe operating conditions, demonstrating the core value of sintered metal filter media in high-pressure hydraulics.

Product Specifications

Material: SS316L

Diameter: 12.7mm

Length: 177.8mm

Pore Size: 5µm

Male Thread Connection: 1/2"

Technique: Sintering

Products Features

Retention Uniformity from Homogeneous Pore Size

A regular pore network formed by sintered metal delivers stable and uniform particle retention across the entire flow field, minimizing local filtration deviations that affect system cleanliness.

Differential Pressure Surge Tolerance

Under instantaneous differential pressure fluctuations or start-stop transients, the filter structure remains stable, preventing performance imbalance or mechanical damage from sudden load changes.

Depth Loading and Contaminant Holding Mechanism

Multi-layer interconnected pores provide greater internal capture volume, allowing contaminants to deposit progressively within the material matrix, delaying surface blockage and maintaining stable flow for extended periods.

Thermal Stability for Continuous Operation

Within oil temperature variations or elevated thermal environments, the material microstructure does not undergo significant change, ensuring consistent filtration behavior without thermal stress effects.

Synergistic Corrosion and Fatigue Resistance

In the presence of water, oxidation, or mildly corrosive media, the structure retains integrity while exhibiting strong resistance to cyclic fatigue, accommodating long-term operating conditions.

Compatibility with High Cleanliness Control Requirements

In systems demanding stringent oil cleanliness levels, the filter provides sustained and reliable fine particle control, creating dependable conditions for precision component operation.

Products Applications

Servo and Proportional Valve Pilot Line Protection
Captures contaminants of 5 microns and larger in pilot control circuits, preventing spool sticking and response drift to maintain original valve control precision.

Piston Pump and Motor Case Drain Filtration
Installed in case drain return lines, continuously removes fine metallic debris generated from wear interfaces such as valve plates and slippers, reducing volumetric efficiency loss due to abrasive wear.

High-Pressure Main Line Inline Purification
Placed directly in main pressure lines, intercepts weld spatter, seal wear particles, and hard contaminants introduced during oil top-off in real time under system operating conditions, preventing damage to downstream actuators.

Impact-Resistant Filtration for Mobile Hydraulic Systems
Designed for high-frequency pressure surge conditions in construction and agricultural machinery, the rigid structure withstands instantaneous flow spikes and prevents secondary release of pollutants from filter element rupture.

Gearbox Oil Fine Filtration for Wind Turbines
Deployed in forced lubrication circuits of wind turbine gearboxes, tolerates high-viscosity cold starts and continuous high-temperature operation while removing 5-micron fatigue spalling particles generated from gear meshing.

Ground Hydraulic Power Unit Cleanliness Assurance for Aviation
Applied in aircraft ground hydraulic test carts or hydrostatic power modules, ensures oil cleanliness meets NAS 1638 Class 5 or better for hydraulic systems supplied to aircraft, mitigating contamination risks to onboard components.