Product Specification

HA4VSO Variable Axial Piston Pump for Heavy-Duty Equipment

Product Introduction

The HA4VSO series variable axial piston pump is a swash-plate type hydraulic pump engineered exclusively for heavy-duty equipment applications. With a continuous working pressure of 350 bar and a maximum operating pressure of 400 bar, the HA4VSO pump ensures reliable hydraulic power delivery under the most demanding operating conditions. Its modular design, precision engineering, and variable displacement control make it an ideal choice for heavy machinery that requires robust, energy-efficient, and long-lasting hydraulic solutions.

Applications

• Heavy-Duty Equipment: Mining trucks, tunnel boring machines, drilling rigs, and large construction machinery

• Industrial Hydraulics: Steel mills, foundries, and metallurgical plants where consistent high-pressure output is required

• Material Handling: Hydraulic systems in large cranes, conveyors, and lifting systems

Advantages

• High Pressure Performance: Continuous operating pressure of 350 bar, maximum up to 400 bar

• Variable Displacement Control: Swash plate mechanism enables smooth and precise flow adjustment according to load demands

• Energy Efficiency: Automatically matches system demand to minimize energy loss during partial load conditions

• Durability: Constructed with high-strength alloy steel and precision-machined components for extended service life

• Low Noise Operation: Optimized porting and fluid channels reduce hydraulic noise, enhancing operator comfort

• Flexible Modular Design: Available in multiple sizes, adaptable for different heavy equipment applications

Technical Specifications

Manufacturing Process

1. Material Selection: High-strength alloy steel for pump housings and components

2. Precision CNC Machining: Ensures dimensional accuracy and superior component fit

3. Heat Treatment: Improves surface hardness and wear resistance

4. Assembly & Quality Testing: Each pump undergoes hydraulic performance and pressure testing

5. Corrosion Protection: Final anti-rust treatment for extended service life in harsh conditions

Usage Instructions

• Fill the pump casing with clean hydraulic oil before operation

• Maintain oil cleanliness at NAS 9 or better

• Do not exceed rated pressure (350 bar) and speed limits

• Replace oil filters regularly and inspect for contamination

• Ensure proper bleeding of air before startup to prevent cavitation

After-Sales Service

• Warranty: 12 months from the date of purchase

• Technical Support: Guidance for installation, commissioning, and troubleshooting

• Spare Parts Supply: Genuine factory spare parts available for quick delivery

• Repair Services: Professional service team providing global maintenance support

FAQ

Q1: Is the HA4VSO pump suitable for applications other than heavy-duty equipment?
A1: No, this model is specifically designed for heavy-duty hydraulic systems requiring continuous high-pressure operation.

Q2: What type of hydraulic oil is recommended?
A2: Standard mineral hydraulic oil ISO VG46 or VG68 with proper cleanliness standards.

Q3: How is noise level controlled?
A3: The pump integrates optimized port plate design and fluid dynamics to significantly reduce operational noise.