A4VG90EP3 Axial Piston Hydraulic Pump for Large Injection Molding Machines

The A4VG90EP3 variable axial piston hydraulic pump is a high-performance closed-circuit pump designed exclusively for large injection molding machines. With a maximum speed of 3000 rpm, it delivers reliable hydraulic power for high-pressure, heavy-duty plastic manufacturing processes. Featuring robust construction with steel and aluminum alloy components, the A4VG90EP3 offers long service life, superior energy efficiency, and stable operation under demanding industrial conditions.

Applications

• Large Injection Molding Machines: Provides precise hydraulic power for clamping, injection, and plasticizing stages.

• Plastic Manufacturing Plants: Ensures stable, high-pressure performance in continuous production environments.

• Industrial Automation: Integrated into hydraulic systems requiring constant, adjustable, and efficient energy supply.

Advantages

• High Efficiency: Variable displacement control reduces energy consumption and increases overall productivity.

• High Pressure Capacity: Cut-off pressure up to 350 bar, with overflow settings reaching 445 bar, suitable for heavy-duty injection processes.

• Durable Design: Steel and aluminum alloy construction ensures reliability in continuous operation.

• Low Noise Operation: Optimized internal design minimizes noise, improving factory working conditions.

• Long Service Life: Advanced wear-resistant components and integrated filtration extend operating life.

Technical Specifications

Manufacturing Process

1. Material Selection – High-strength steel and aluminum alloy.

2. Precision Machining – CNC production ensures dimensional accuracy.

3. Heat Treatment – Improves hardness and wear resistance.

4. Assembly – Strict contamination control during production.

5. Testing – High-pressure testing and performance validation.

6. Surface Protection – Anti-rust and dust-proof treatment.

Usage Instructions

• Fill the casing with clean hydraulic oil before operation.

• Maintain oil cleanliness at NAS level 9.

• Avoid mechanical shock on the input shaft during installation.

• Protect exposed ports from dust contamination during assembly.

• Regularly monitor system pressure and oil quality for long-term stability.

After-Sales Service

• Warranty: 1 year against manufacturing defects.

• Technical Support: Remote and on-site installation guidance.

• Spare Parts: Genuine accessories available for fast replacement.

• Maintenance Service: Professional global after-sales network.

FAQ

Q1: Is the A4VG90EP3 suitable for other applications besides injection molding?
A1: This model is specifically optimized for large injection molding machines to ensure precise hydraulic performance.

Q2: What hydraulic oil is recommended?
A2: ISO VG46 or VG68 hydraulic oil, with cleanliness maintained at NAS ≤ 9.

Q3: How often should the filter be replaced?
A3: It is recommended to check oil filters regularly and replace them every 6 months or sooner under harsh operating conditions.