Automatic Hydraulic Oil Purification System

ZYL Vacuum Hydraulic Oil Purification System is designed for purifying hydraulic oil, anti-wear hydraulic oil, aviation hydraulic oil, turbine oil, gear oil, refrigerating oil, heat treatment oil, internal combustion engine oil, etc. It can quickly remove impurities, moisture, gas and reduce acid value, finally, it restore oil viscosity, flash point and oil performance of lubricating oil. 

Key Features of ZANYO Automatic Hydraulic Oil Purification System

  • Fully Automatic Operation: PLC-based control enables unattended, continuous purification.
  • Vacuum Dehydration anf Degassing: Efficiently removes water and dissolved gases to restore oil quality.
  • High-Precision Multi-Stage Filtration: Eliminates micro-particles and solid contaminants.
  • Wide Oil Compatibility: Suitable for hydraulic, lubricating, turbine, and transformer oils.
  • Energy-Efficient Design: Optimized vacuum pumps and heating systems reduce power consumption.
  • Portable and Stationary Options: Flexible configurations for workshop, plant, or mobile use.
  • Durable Industrial Construction: Stainless steel and high-grade components ensure long-term reliability.

 

Advantages of Using a Hydraulic Oil Purification System

1. Extended Oil Life

Contaminant removal and moisture reduction delay oxidation and degradation, reducing the frequency of oil replacement.

2. Reduced Equipment Wear

Clean oil protects pumps, valves, and actuators from abrasive particles and corrosion, decreasing component replacement costs.

3. Improved System Efficiency

By eliminating air and water, the system maintains hydraulic pressure and ensures smooth, responsive operation.

4. Minimized Downtime

Regular purification prevents unplanned maintenance, keeping production lines running and reducing costly downtime.

Applications of the Vacuum Hydraulic Oil Purification System

  • Industrial Manufacturing

    Used in metalworking, plastics, and machining plants, the ZYL Hydraulic Oil Purification System maintains hydraulic systems in presses, injection molding machines, and CNC equipment, ensuring consistent oil quality and operational reliability.

  • Power Generation and Energy

    Ideal for turbines, transformers, and generators, it keeps hydraulic oils clean, preventing system breakdowns and supporting optimal insulation and cooling performance in critical energy equipment.

  • Mining and Heavy Equipment

    Deployed in excavators, loaders, and hydraulic drilling machines, the system prolongs machinery life under harsh conditions with high dust, heavy loads, and continuous operation.

  • Automotive and Transportation Maintenance

    Used in maintenance workshops and fleet operations, the purification system treats hydraulic oils, gear oils, and lubricants, reducing service intervals and extending engine and component lifespan.

  • Cement, Chemical and Metallurgy

    Ensures reliable hydraulic system performance in cement plants, chemical processing, and metallurgical operations by removing contaminants and moisture from critical fluids.

  • Food and Other Industries

    Supports food processing, manufacturing, and other industrial sectors by maintaining oil cleanliness, minimizing contamination risks, and improving equipment efficiency.

Hydraulic Oil Purification Performance

Parameter    
Residual Moisture Content PPm ≤10
Demulsification Min ≤8
Cleanliness NAS 5
Filtration Fineness μm ≤1

Partner With ZANYO for High-Performance Automatic Hydraulic Oil Purification Systems

ZANYO provides reliable Automatic Hydraulic Oil Purification Systems designed for efficiency and durability. With years of experience, we deliver advanced solutions that enhance hydraulic system performance worldwide.

Our systems undergo rigorous testing for superior quality, and we offer OEM customization and scalable production to meet specific operational needs. Global technical support ensures smooth installation, operation, and maintenance.

Designed for sustainability, our solutions reduce oil waste and promote environmentally responsible practices. Choosing ZANYO means cost-efficient, fully automated oil purification that extends equipment life and minimizes downtime.

What Is a Hydraulic Oil Purification System?

A hydraulic oil purification system is a specialized filtration and treatment setup designed to remove impurities from hydraulic fluids. Unlike simple filters, these systems provide multi-stage purification, targeting solid particles, moisture, and dissolved gases. By maintaining optimal oil quality, these systems protect hydraulic pumps, valves, actuators, and pipelines from wear and failure, ultimately reducing downtime and maintenance costs.

Hydraulic oil degradation can lead to:

  • Reduced lubrication efficiency
  • Increased component wear
  • Corrosion in hydraulic circuits
  • Unexpected system failure

Purification systems mitigate these risks and help achieve ISO cleanliness standards, which are essential for precision industrial applications.

Oil Purification System Working Principle

After the large particles and impurities removed by the primary filter system, oil will undergo capillary condensation by the demulsifying filter element from demulsifier system, and small droplets turn into large droplets, and then be separated from the oil. Dissolved water is removed by vacuum system through heating constant evaporation and vacuum pump out. After removing water, oil goes through fine filter system to remove mechanical impurities, finally, oil is purified completely.

Hydraulic Oil Filter System Working Process 

Lube oil goes through coarse filter system, and sucked into heating system by vacuum negative pressure, oil heated and water separated from of oil in the vacuum degassing tank. The water from oil is discharged by vacuum pump. oil is decolorized and deacidified by molecular sorbent and then recycled by oil regeneration system. also oil can be transported to fine filter system by oil pump and demulsified by demulsifier, oil and water separated, and oil is purified.

Hydraulic Oil Purification System Specifications

Model Unit 10 20 30 50 80 100 125 150 200 300
Capacity L/min 10 20 30 50 80 100 125 150 200 300
Working Vacuum Mpa -0.070 ~ -0.099
Working Pressure Mpa ≤0.5
Continuous Working Hr ≥200
MTBF H ≥5000
Operating Temperature 20℃ ~ 60℃(68°F ~ 140°F)
Working Noise dB 65
Power Supply   ~ 50HZ 380V(According to user requirements)
Heating Power KW 9 15 24 30 48 60 72 90 96 120
Total Power KW 10.5 17 26 33 52 66 78 100 108 135
Oil Pipe Diameter Inlet mm 19 25 32 32 44 48 48 50 58 65
Outlet mm 19 25 32 32 44 48 48 50 58 65
Weight kg 210 250 330 420 550 800 1100 1250 1500 1700
Appearance Size Length mm 1100 1230 1250 1500 1550 1650 1700 1750 1900 2000
Width mm 800 810 850 950 950 1000 1100 1200 1250 1350
Height mm 1250 1260 1300 1400 1500 1600 1680 1750 1950 2100

Optional Configuration

Vacuum Pump: Atlas, Leybold ,Busch,Joysun,Hokaido Etc.

Oil Pump: Italy Seim Screw Oil Pump, Germany KRACHT, Tianjin Screw Oil Pump, Etc.

Electrical: Siemens, Schneider

Other : PLC Controlling System, Enclosed Doors,

Oil Testers: BDV Oil Tester, Moisture Sensor, Flow Meter Etc.

Maintenance and Best Practices

  • Regular Filter Replacement

    Mechanical filters become less effective over time. Replace them according to manufacturer recommendations or based on differential pressure readings.

  • Monitor Oil Quality

    Use inline sensors to track particle count, moisture, and gas content. Early detection of contamination prevents extensive damage.

  • Scheduled Purification

    Even with clean operating environments, periodic purification cycles remove accumulated contaminants before they affect system performance.

  • Temperature Control

    Avoid overheating the oil, as excessive heat accelerates oxidation. Maintain recommended operating temperatures during purification.

  • Record Keeping

    Document oil quality and maintenance activities to track trends, predict system issues, and optimize replacement schedules.