Excavator Swash Plate Axial Piston Pump HA4VSO Series Axial Piston Pump 40 To 1000

The HA4VSO series is a high-performance swash plate-type axial piston variable displacement pump designed for excavators and heavy machinery applications. Available in sizes from 40 to 1000, this pump delivers reliable hydraulic power with advanced control features.

• Nominal pressure: 350 bar
• Maximum pressure: 400 bar
• Open circuit design
• Modular construction for flexible configuration
• Variable speed through drive shaft options
• Visual swing angle indicator for easy monitoring
• Compatible with HF oil (with reduced operating data)

• Displacement Control: Swash plate angle adjustment provides infinitely variable displacement. Pressure compensator automatically reduces tilt angle at high pressure to cut flow output.
• Piston Operation: Rotating cylinder block drives pistons in reciprocating motion via swash plate, with oil suction/discharge controlled by precision port plate.
• Pressure Compensation: Maintains constant pressure up to 350 bar continuous operation.
• Energy Efficiency: Flow output precisely matches system demand, minimizing energy loss during low load conditions.
• Low Noise Design: Optimized fluid channels and spherical porting significantly reduce operational noise levels.