Products Description
Hot Sale High-quality Filter element N100DM005 N15DM002 N15DM010.Hydraulic oil filter elements are critical purification components in hydraulic systems. Built with precision filtration media (e.g., glass fiber, metal mesh, or resin fiber), they trap solid particles, metallic wear debris, and colloidal contaminants to maintain fluid cleanliness and protect pumps, valves, and actuators from wear and jamming.85565596 Filter Impurities Removal Core Components Pump Engine.Hot Sale High-quality Filter element N100DM005 N15DM002 N15DM010.
Application Fields
Hydraulic oil filter elements are widely used in construction machinery (excavators, cranes), metallurgical equipment (rolling mills), mining machinery, marine hydraulic systems, injection molding machines, wind turbines, and industrial hydraulic power units. They remove solid particles and gelatinous contaminants to ensure system reliability and performance.
Service Life
Service life depends on contamination level, operating pressure, fluid temperature, and element material. Typical replacement intervals range from 500 to 2,000 running hours, or when the differential pressure alarm triggers (usually at 0.3–0.5 MPa). Actual change intervals should be determined by oil analysis results and OEM recommendations.
Maintenance Guidelines
Monitor the differential pressure indicator regularly; replace immediately when approaching the alarm set point.
Clean the housing and sealing rings during each replacement to prevent secondary contamination.
Do not clean or reuse fine filter elements made of glass fiber or resin (only metal wire mesh types are washable).
Pre-filter new oil before adding to the system to avoid mixing contaminants from old oil.
Record running hours, differential pressure, and oil cleanliness level after each change to support predictive maintenance planning.
| Parameter | Description / Typical Value |
|---|---|
| Filtration Rating | 3 μm, 5 μm, 10 μm, 20 μm, 50 μm (optional) |
| Nominal Flow Rate | 25 L/min – 1,000 L/min (model dependent) |
| Operating Pressure | 0.6 MPa – 42 MPa (high-pressure versions up to 42 MPa) |
| Burst Pressure | ≥ 21 MPa (depending on media and design) |
| Initial Pressure Drop | ≤ 0.08 MPa (clean condition, at rated flow) |
| Alarm Differential Pressure | 0.3 MPa – 0.5 MPa (recommended change value) |
| Maximum Operating Temperature | -10 °C – +120 °C (seal material dependent) |
Hydraulic filter element in order to purify ecological resources and data reuse, and the need for purification equipment, the current filter element is mostly used in oil filtration, air filtration, water filtration and other filtration industries.
Used to remove a small amount of solid particles in the liquid or air, can protect the normal working of the equipment, when the fluid enters the hydraulic filter, the impurities will be blocked, and the clean liquid will flow out of the filter to achieve the filtration effect.
The liquid filter element enables the liquid (including oil, water, etc.) to clean the contaminated liquid to the state required for production and life, that is, to make the liquid reach a certain degree of cleanliness.
Oil filter elements are generally glass fiber, oil filter paper, metal mesh, sintered felt, brass mesh, etc., and different materials of filter elements are used in different industries.
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FAQ
Q: How often should the filter element be replaced?
A: Typically every 500–2,000 operating hours, or when the differential pressure reaches 0.3–0.5 MPa (alarm value). Actual intervals should be adjusted based on oil analysis results and operating conditions.
Q: Can the filter element be cleaned and reused?
A: Glass fiber and resin-type fine filter elements cannot be cleaned or reused – cleaning damages the filtration layer and reduces accuracy. Only metal wire mesh coarse elements may be cleaned using specialized cleaning fluids and must pass integrity testing before reuse.
Q: How to select the correct filtration rating?
A: It depends on the smallest clearances of critical system components. General guideline: 3–5 μm for servo valve systems, 10 μm for proportional valve systems, and 10–20 μm for general industrial systems. Overly high rating increases pressure drop, while too low rating fails to protect components.
Q: What are the risks of continuing to operate after the differential pressure alarm triggers?
A: The bypass valve opens, allowing unfiltered oil to enter the system and accelerating pump/valve wear. The element may also collapse under excessive pressure, releasing debris into the oil circuit and causing severe equipment damage.
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