Xinxiang Filter

Industry Pain Points

Hydraulic systems and heavy-duty lubrication systems serve as the power core of industrial equipment, and their operational reliability directly governs the continuous running rate of production lines. Statistics show around 80% of hydraulic system failures stem from fluid contamination. Four major contaminants lead to system breakdown: solid particles, water, entrained air and sludge.

The fitting clearances of hydraulic pumps, valves and cylinders generally range from 3 μm to 50 μm. Tiny hard particles such as iron filings and silica dust scratch the mating surfaces between valve spools and valve bodies, which may cause spool sticking and response malfunction. Water mixed into oil emulsifies lubricant, accelerates additive depletion and triggers corrosion on metal surfaces. Colloids and carbon deposits generated by oil oxidation block throttle orifices and jam sliding valves.

In heavy-load lubrication applications such as gearboxes and bearings, accumulated metallic wear debris (iron, copper, tin) aggravates gear pitting, spalling and bearing fatigue failure, potentially resulting in catastrophic equipment damage.

Moreover, under high-temperature working conditions (oil temperature: 80–180 ℃) of injection molding machines, die-casting machines, continuous casters and hot rolling lines, filter paper adhesives of ordinary filter elements soften and peel off, while sealing parts harden and fail. This causes loss of filtration precision and fluid leakage.

Solutions & Applications

1. Fluid Filtration & PurificationWe supply lubricant filters and hydraulic filter cartridges with high beta values (βx ≥ 200) to efficiently remove metallic wear particles and carbon deposits, maintaining oil cleanliness at stable NAS grades.

2. Adaptation to Harsh Working ConditionsHigh-temperature resistant hydraulic filter cartridges are customized for high-heat scenarios including continuous casting and hot rolling equipment as well as injection molding machines, stably maintaining filtration performance at operating oil temperatures up to 180 ℃.

3. Cost-Effective Import SubstitutionWe offer replacement filter cartridges compatible with mainstream international brands including Pall, HYDAC, MP Filtri, Parker, MAHLE and Donaldson. Our products match original performance standards while greatly cutting customers’ operation and maintenance costs.

Typical Application Scenarios

• Hydraulic systems of construction machinery (excavators, cranes, loaders)

• Gearbox lubrication for metallurgical rolling mills

• Wind turbine gearbox lubrication

• Hydraulic systems of injection molding & die-casting machines

• Turbine lube oil stations for power plants

• Mining machinery and marine power systems