Metal Mesh Hydraulic Oil Filtration, Purifying Hydraulic Systems

Hydraulic oil filtration is an essential process in hydraulic systems, primarily designed to remove various contaminants generated or introduced during the operation of hydraulic oil, such as mechanical impurities, moisture, and air. If these impurities are not filtered in a timely manner, they will accelerate the corrosion and wear of system components, reduce operational efficiency, degrade oil quality, and may even cause oil circuit blockages leading to equipment failure or safety incidents. Effective filtration maintains hydraulic cleanliness, ensures system stability, and extends equipment service life.

Efficient hydraulic oil filtration typically relies on metal mesh filter elements, which are primarily constructed from stainless steel and offer notable advantages such as high filtration accuracy, strong contaminant holding capacity, corrosion resistance, high pressure resistance, and extended service life. The selection of stainless steel mesh material directly influences its durability and corrosion resistance; materials with high nickel content are better suited for long-term operating environments. Additionally, by layering multiple stainless steel meshes of varying mesh sizes, graded filtration can be achieved, thereby enhancing impurity interception efficiency.

Applications
Hydraulic oil filtration applied in excavator hydraulic systems
Heavy industrial equipment
  • Rolling mills and continuous casting machines: Filter metal wear particles and impurities generated during hydraulic system operation to protect critical control components like servo valves.
  • Construction machinery: For example, excavators and cranes, filter external contaminants in dusty construction environments to extend system service life.
Hydraulic oil filtration applied in marine hydraulic systems
Energy and transportation sector
  • Railway diesel engines: Filter carbon deposits and metal wear particles from lubricating oil to extend the service life of engines and gear systems.
  • Marine hydraulic systems: Maintain hydraulic oil cleanliness in high-salt mist environments to prevent corrosive particles from damaging critical components.
Hydraulic oil filtration applied in injection molding machine hydraulic systems
Precision manufacturing and chemical industry
  • Injection molding machine hydraulic system: Prevents contamination of hydraulic oil by plastic raw materials or wear particles, protects proportional valves, and ensures injection molding accuracy.
  • Petrochemical equipment: For example, filters catalytic residues in refining units to ensure precise response of hydraulic control circuits.
Hydraulic oil filtration applied in high-temperature and high-pressure environments
Adapted for special operating conditions
  • High-temperature and high-pressure environments: The stainless steel sintered mesh structure enables stable operation at temperatures up to 110 °C.
  • High flow rate requirements: Employs pleated filter media design to increase filtration area and reduce system pressure drop.