Axial Piston Hydraulic Pump

A4VG series — closed-circuit hydrostatic transmission pump for mobile machinery.

More Power, Less Space — High pressure rating in a compact package

Smooth & Precise — Stepless flow control with stable reversing

Simpler Systems — Integrated charge pump cuts piping and components

Flexible Setup — Through-drive & multiple control options for easy integration

Built to Last — Overload protection and durable bearings for long service life

Product Highlights

A4VGAxial Piston Variable Pump | Product Highlights

The A4VG series swashplate axial piston variable pump is purpose-built for closed-circuit hydrostatic transmission, serving as the core power component in mobile machinery hydraulic systems.

Key Advantages:

High Pressure & Power Density: Rated pressure 400–450 bar, peak pressure up to 500 bar — powerful output in a compact design

Stepless Variable Control: Flow is proportional to drive speed and displacement; swashplate angle adjusts steplessly from zero to maximum for smooth reversing through neutral

Integrated Charge System: Built-in charge pump handles charge oil and pilot control supply, simplifying system plumbing

Flexible Configuration: Supports 100% through-drive for tandem pump combinations; available with HW, EP, DA, ET and other control options

Reliable & Durable: High-pressure side relief valve protects against system overload; optimized O-ring sealing; long-life rolling bearings

Axial Piston Pump

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Applications

Travel drive and implement systems for construction and agricultural machinery — excavators, wheel loaders, road rollers, harvesters, concrete mixer trucks, and more.

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FAQ

  1. 1.What are your main products? 

    2-way cartridge valves, electro-hydraulic integrated control systems, multi-way valves, prefill valves, piston pumps, hydraulic cylinders. 

  2. How to choose models? 

    Send us working pressure, flow rate & control requirements, our engineers help you select. 

  3. Can you customize products? 

    Yes, custom service supported.

  4. Industries for application? 

    Machine tools, metallurgical machinery, renewable resources, construction machinery. 

  5. Delivery lead time? 

    Shipment as per contract agreement on quantity, date and destination. 

Online Consultation

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