Product Specification

HA7V Axial Piston Pump for Construction Machinery

High-Performance Hydraulic Pump for Excavators, Concrete Pumps, and Cranes

The HA7V Series Axial Piston Pump is a high-performance, variable displacement hydraulic pump designed specifically for construction machinery applications. With a displacement range from 20.5 to 250 Vgmax ml/r, the HA7V series offers unmatched reliability and efficiency, making it ideal for demanding construction environments. It is widely used in excavator travel and swing drives, concrete pump trucks, and crane hoisting systems, providing high pressure and consistent power for optimal performance.

Applications

• Excavator Systems: Used in travel and swing drives to ensure smooth and powerful operation.

• Concrete Pump Trucks: Powers the hydraulic systems for precise control during concrete placement.

• Cranes and Hoisting Systems: Provides hydraulic power for lifting and maneuvering heavy loads.

• Construction Equipment: Supports various hydraulic-driven systems within heavy machinery, ensuring reliable performance under harsh conditions.

Advantages

• High Efficiency: Designed with spherical oil distribution for excellent self-priming performance, reducing energy consumption and increasing operational efficiency.

• Versatile Displacement Range: Offers a displacement range from 20.5 to 250 ml/r, making it adaptable to different power requirements in construction machinery.

• Durability: Engineered to withstand high pressure (up to 400 bar) and impact, ensuring long service life even in demanding environments.

• Radial Load Capability: The drive shaft is built to handle significant radial loads, offering stability and reliability.

• Multiple Control Modes: Supports multiple control options such as constant pressure (DR), constant power (LV), and manual (MA) for flexible integration into various hydraulic systems.

Specifications

Manufacturing Process

1. Material Selection: High-strength, corrosion-resistant materials ensure the pump performs well in harsh construction environments.

2. Precision Machining: Each component is finely machined to exact tolerances for optimal fit and performance.

3. Heat Treatment: Enhances component hardness and durability, ensuring long-lasting reliability under high pressures.

4. Assembly & Testing: Assembled according to strict quality control standards and rigorously tested for performance and pressure resistance.

5. Surface Coating: Anti-corrosion coatings are applied to prolong the pump’s life and maintain its functionality in challenging environments.

Usage Instructions

• Hydraulic Oil: Use hydraulic oil that meets ISO VG46 or VG68 specifications, ensuring optimal pump performance.

• Pre-Start Check: Before operating, ensure the pump casing is filled with clean hydraulic oil to avoid dry running.

• Regular Maintenance: Check oil cleanliness and replace filters regularly to prevent contamination and ensure the pump operates efficiently.

• Proper Environment: Avoid overloading the pump and ensure it is not exposed to extreme temperatures that could compromise performance.

• System Monitoring: Maintain hydraulic fluid cleanliness to NAS level 9 for best results.

After-Sales Service

• Warranty: 12-month warranty covering manufacturing defects.

• Technical Support: Comprehensive support for installation, operation, and troubleshooting.

• Spare Parts: Genuine replacement parts are available to ensure quick repairs and minimal downtime.

• Global Service: Service available worldwide, ensuring your equipment stays operational.

FAQ

Q1: Can the HA7V Series pump be used for other applications beyond construction machinery?
A1: While it is designed primarily for construction machinery, the HA7V pump can also be used in other industrial hydraulic systems with similar requirements.

Q2: What is the maximum pressure the HA7V pump can handle?
A2: The HA7V Series pump can handle a maximum pressure of 400 bar, making it suitable for high-pressure hydraulic systems.

Q3: How do I choose the right displacement for my system?
A3: The correct displacement depends on the flow and power requirements of your hydraulic system. Refer to the specifications to match the required performance for your application.