890-EI Series High Pressure Gear Pump | 890-EI-1000-RS2-C503 | 890-EI-0400/0800

The 890-EI Series from LIC Hydraulic is a premier high-pressure industrial gear pump designed for the most demanding oil systems. Covering displacements including the 890-EI-0400, 0800, and 1000 models, this series stands out for its mechanical rigidity and quiet operation. The specific model 890-EI-1000-RS2-C503 utilizes the reinforced RS2 structural design to provide unmatched stability and seal longevity at high pressures. We guarantee 100% mechanical interchangeability and subject every unit to 100% continuous load and peak pressure testing, ensuring industrial-grade performance.

Technical Configuration Details (e.g., 890-EI-1000-RS2-C503)

• Series: 890-EI (High-Pressure Industrial Efficiency)

• Structure: RS2 Reinforced Support System

• Configuration: C503 specialized mounting and shaft standards

• Efficiency: Optimized volumetric efficiency through precision gap compensation

• Noise Level: Significantly lower decibel rating compared to standard gear pumps

• Pressure Rating: Designed for high-duty cycle industrial HPU applications

Key Technical Advantages

• Ultra-Low Noise Profile: The 890-EI series is engineered to eliminate fluid trapping and mechanical rattle. This makes it the preferred choice for indoor hydraulic power units and environments with strict noise regulations.

• RS2 Ruggedized Design: Featuring heavy-duty internal bearings and a reinforced housing, the RS2 variant is built to withstand the intense axial and radial loads found in continuous high-pressure operations.

• High Volumetric Stability: Advanced axial and radial pressure balancing allows the pump to maintain consistent flow even as oil temperatures rise, ensuring repeatable precision for your hydraulic actuators.

• Superior Material Quality: Constructed from high-grade materials with specialized heat treatments, the pump offers excellent thermal stability and compatibility with a wide range of hydraulic fluids.

Application Areas

• Industrial HPU: Main power source for CNC machinery and automated assembly lines.

• Heavy Duty Processing: Scrap metal balers, industrial shears, and forging press auxiliary systems.

• Power Generation: Lubrication systems for turbines and control units for power plant valves.

• Circulation Systems: High-pressure forced lubrication and industrial cooling/filtration loops.

Expert Maintenance Tips

• Seal Integrity: The RS2 structure requires precise alignment. Never apply impact force to the shaft during installation, as this can damage the internal compensation plates and lead to premature seal failure.

• Strict Filtration: Maintain a filtration level of ISO 4406 18/16/13 or better. High-pressure gear pumps are sensitive to particulate contamination; use a $10\text{ }\mu\text{m}$ absolute filter for maximum protection.

• Initial Priming: Dry running will cause immediate damage. Always pre-fill the pump with clean hydraulic oil and rotate the shaft by hand several times before the first power-on to ensure the internal components are fully lubricated.