Hydraulic Filter ZUI-E Series

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ZUI-E10, ZUI-E25, ZUI-E40, ZUI-E63, ZUI-E100, ZUI-E160, ZUI-E250, ZUI-E400, ZUI-E630, ZUI-E800

Filter housing: High-strength aluminum alloy (lightweight and corrosion-resistant); Filter element: Glass fiber + cellulose composite material (high filtration efficiency); Sealing ring: Nitrile rubber (NBR) complying with ISO 6020/2 standard (excellent oil resistance)

1. Filter element blockage caused by excessive impurities in hydraulic oil; 2. Sealing ring aging and leakage due to long-term contact with high-temperature oil; 3. Housing deformation from hydraulic system pressure impact

1. Regularly check oil cleanliness (target: NAS 8-10 grade) and replace the filter element in time; 2. Control hydraulic oil temperature below 80℃ and replace sealing rings every 6 months; 3. Install pressure relief valves in the system to avoid pressure exceeding the filter's rated pressure (≤21MPa)

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1μm precision: ZUI-E10*1P, ZUI-E100*1P, ZUI-E160*1P, ZUI-E250*1P, ZUI-E400*1P, ZUI-E630*1P, ZUI-E800*1P

Filter housing: High-strength aluminum alloy with anodized coating; Filter element: Nano-fiber composite material (high-precision filtration); Sealing ring: Fluororubber (FKM) (resistant to high temperature and chemical corrosion)

1. Rapid filter element blockage due to low oil cleanliness before filtration; 2. Filter element damage from hard particles in the oil; 3. Sealing failure caused by chemical contamination of hydraulic oil

1. Equip a pre-filter at the front end to improve oil inlet cleanliness; 2. Regularly detect the content of hard particles in the oil (control ≤5 particles/mL for ≥5μm); 3. Use hydraulic oil that meets the ISO VG 46/68 standard and avoid mixing different types of oil

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3μm precision: ZUI-E10*3P, ZUI-E100*3P, ZUI-E160*3P, ZUI-E250*3P, ZUI-E400*3P, ZUI-E630*3P, ZUI-E800*3P

Filter housing: High-strength aluminum alloy with anodized coating; Filter element: Micro-glass fiber composite material; Sealing ring: Fluororubber (FKM) (excellent high-temperature resistance up to 150℃)

1. Filter element clogging due to prolonged use beyond the service life; 2. Housing corrosion in humid or outdoor environments; 3. Pressure difference sensor failure leading to untimely filter element replacement

1. Replace the filter element according to the service life (≤2000 working hours); 2. Apply anti-corrosion paint to the housing surface for outdoor use; 3. Calibrate the pressure difference sensor quarterly (alarm threshold set at 0.6MPa)

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5μm precision: ZUI-E10*5P, ZUI-E100*5P, ZUI-E160*5P, ZUI-E250*5P, ZUI-E400*5P, ZUI-E630*5P, ZUI-E800*5P

Filter housing: High-strength aluminum alloy; Filter element: Glass fiber + cellulose composite material; Sealing ring: Nitrile rubber (NBR) with reinforced structure (improved wear resistance)

1. Sealing ring wear caused by frequent filter replacement; 2. Filter element damage from system pressure spikes; 3. Oil leakage due to loose housing fasteners

1. Use special tools for filter replacement to avoid damaging the sealing ring; 2. Install a pressure accumulator in the system to absorb pressure spikes; 3. Check the tightness of housing fasteners monthly and torque them to 25-30N·m

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10μm precision: ZUI-E10*10P, ZUI-E100*10P, ZUI-E160*10P, ZUI-E250*10P, ZUI-E400*10P, ZUI-E630*10P, ZUI-E800*10P

Filter housing: Carbon steel with anti-rust coating; Filter element: Cellulose fiber composite material (large dirt-holding capacity); Sealing ring: Nitrile rubber (NBR) (good compatibility with most hydraulic oils)

1. Housing rusting due to water intrusion in the hydraulic system; 2. Filter element collapse caused by excessive dirt accumulation; 3. Reduced filtration efficiency due to filter element deformation

1. Regularly check the water content of hydraulic oil (control ≤0.1%); 2. Monitor the pressure difference and replace the filter element when the difference exceeds 0.5MPa; 3. Avoid collision and impact during transportation and installation

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20μm precision: ZUI-E10*20P, ZUI-E100*20P, ZUI-E160*20P, ZUI-E250*20P, ZUI-E400*20P, ZUI-E630*20P, ZUI-E800*20P

Filter housing: Carbon steel; Filter element: Synthetic fiber composite material (wear-resistant); Sealing ring: Ethylene propylene rubber (EPDM) (excellent weather resistance)

1. Filter element wear caused by high flow velocity of hydraulic oil; 2. Sealing ring aging due to long-term exposure to sunlight (outdoor use); 3. Housing deformation from improper installation

1. Ensure the oil flow rate does not exceed the filter's rated flow; 2. Install a protective cover for outdoor-mounted filters to avoid direct sunlight; 3. Follow the installation manual to ensure correct alignment and fixation

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30μm precision: ZUI-E10*30P, ZUI-E100*30P, ZUI-E160*30P, ZUI-E250*30P, ZUI-E400*30P, ZUI-E630*30P, ZUI-E800*30P

Filter housing: Carbon steel with powder coating; Filter element: Polyester fiber material (high strength and durability); Sealing ring: Nitrile rubber (NBR) (cost-effective and reliable)

1. Filter element clogging due to poor maintenance of the hydraulic system; 2. Oil leakage caused by damaged sealing ring; 3. Housing corrosion in corrosive working environments

1. Establish a regular maintenance system for the hydraulic system, including oil replacement and system flushing; 2. Inspect the sealing ring for damage before installation and replace if necessary; 3. Use anti-corrosion protective measures in chemical or coastal environments

How to select the appropriate precision grade for ZUI-E series hydraulic filters?

The precision grade is determined by the hydraulic system's cleanliness requirements: 1μm-3μm for high-precision systems (e.g., precision injection molding machines, servo hydraulic systems); 5μm-10μm for medium-precision systems (e.g., large hydraulic presses, heavy-duty excavators); 20μm-30μm for general systems (e.g., small loaders, agricultural harvesters). Also, consider the oil flow rate (matching the filter's rated flow) and working pressure (not exceeding the filter's maximum pressure of 21MPa). For unclear requirements, refer to the equipment manufacturer's manual or consult professional technical support.

What are the signs that the ZUI-E series filter element needs to be replaced?

Key replacement signs: 1. The system pressure difference alarm is triggered (normal pressure difference range: 0.1-0.5MPa); 2. The hydraulic system's working efficiency decreases (e.g., slow action of hydraulic cylinders, insufficient pressure); 3. The filter element appears discolored, hardened, or damaged during inspection; 4. The service life exceeds the recommended 2000 working hours or 6 months (whichever comes first). Timely replacement avoids secondary pollution of the hydraulic system.

How to extend the service life of ZUI-E series hydraulic filters?

Effective measures: 1. Maintain the cleanliness of hydraulic oil (regularly test and replace oil, avoid mixing different oils); 2. Control the oil temperature within 30℃-80℃ to prevent sealing ring aging and filter element damage; 3. Equip pre-filters to reduce the impurity load of the main filter; 4. Avoid system pressure spikes by installing pressure relief valves and accumulators; 5. Conduct regular inspections (fastener tightness, sealing ring integrity, pressure difference) and maintain records; 6. Store filters in a dry, clean environment to avoid dust and moisture intrusion before installation.