A4VG90EP3 Hydraulic Excavator Axial Piston Pump

The A4VG90EP3 axial piston hydraulic pump is a high-pressure, variable displacement pump engineered exclusively for hydraulic excavators. Designed for closed circuit systems, it provides outstanding efficiency, reliable performance, and extended service life under heavy-duty excavation tasks. With a maximum speed of 3000 rpm and superior high-pressure capability, the A4VG90EP3 ensures powerful hydraulic output to support digging, lifting, and earthmoving operations in challenging environments.

Applications

• Hydraulic Excavators: The pump is specifically designed for excavator hydraulic systems, delivering high-pressure power to the boom, arm, bucket, and swing functions.

• Optimized to handle continuous heavy-duty cycles, ensuring consistent performance in excavation, trenching, foundation digging, and construction site operations.

Advantages

• High Efficiency: Variable axial piston design reduces energy loss and optimizes hydraulic power output.

• High Pressure Performance: Capable of reaching up to 35MPa, supporting demanding excavation requirements.

• Durable Structure: Built from steel and aluminum alloy components to withstand harsh construction environments.

• Low Noise Design: Ensures improved operator comfort on job sites.

• Long Service Life: Integrated oil filtration system enhances reliability and reduces maintenance costs.

Technical Specifications

Manufacturing Process

1. Material Selection: Premium cast steel and aluminum alloy.

2. Precision Machining: CNC processing ensures strict tolerances.

3. Heat Treatment: Enhances wear resistance and durability.

4. Assembly & Testing: High-pressure and performance testing before delivery.

5. Anti-Corrosion Treatment: Rust-proof coatings for extended reliability.

Usage Instructions

• Fill the pump casing with clean hydraulic oil before operation.

• Maintain oil cleanliness at NAS level 9 or better.

• Avoid strong impacts to the transmission shaft during transportation.

• Prevent hydraulic oil leakage on the outer surface during use.

• Conduct regular inspections of filters, oil pressure, and displacement settings.

After-Sales Service

• Warranty: Standard 12-month warranty covering manufacturing defects.

• Technical Support: Professional guidance for installation and operation.

• Spare Parts: Original replacement parts available for long-term support.

• Global Service: Maintenance and repair assistance for international customers.

FAQ

Q1: Can the A4VG90EP3 be used for other machinery besides excavators?
A1: No. This pump is specifically designed and optimized for hydraulic excavators.

Q2: What type of hydraulic oil is recommended?
A2: ISO VG46 or VG68 hydraulic oil with NAS 9 cleanliness or higher.

Q3: How often should the filter be replaced?
A3: Regularly inspect every 500 operating hours and replace as needed depending on oil quality.