Bosch Rexroth A10VG axial piston hydraulic pump for Dynapac Equipment 4700372352 4700387269 4812026127 4812155786 967003928 D967005441

The A10VG is a variable displacement axial piston pump built on a swashplate design, manufactured by Bosch Rexroth — one of the most established names in mobile and industrial hydraulics. It's part of Rexroth's broader A10V family, but the "G" designation specifically points to its role in closed-circuit hydrostatic drive systems, which is exactly the kind of drivetrain Dynapac uses on many of its compactors and light-to-medium pavers.

Core Design Features

Axial piston, swashplate architecture — pistons arranged in a circular cylinder block, driven by a tiltable swashplate that determines stroke length and therefore flow output.

Closed-loop circuit compatibility — designed to work in closed hydrostatic circuits, common in compaction and paving machinery, where forward/reverse travel needs to be smooth and precise.

Integrated control options — depending on the variant, the A10VG can come with hydraulic, electro-hydraulic (EP), or electronic displacement control, letting Dynapac tune throttle response and travel behavior to the specific machine model.

Charge pump and control valves — most A10VG units integrate a charge pump to maintain circuit pressure and prevent cavitation, along with a high-pressure relief and flushing valve arrangement.

Why Dynapac Uses the A10VG in Its Equipment

Dynapac builds machines where controllability matters as much as raw power — think of a tandem roller creeping along a fresh asphalt mat, or a soil compactor working close to a trench edge. A few reasons this pump family fits that need:

1. Precise, stepless variable travel speed. Operators can creep forward at a fraction of a mile per hour or move at transport speed, all from the same pump, just by changing swashplate angle.

2. Smooth reversing. Compaction work involves constant forward-reverse cycling. A closed-loop axial piston pump handles that direction change far more smoothly than open-circuit alternatives.

3. Compact power density. Axial piston pumps deliver a lot of flow and pressure capability for their physical size — important on compact and mid-size Dynapac rollers, where engine bay space is tight.

4. Proven reliability in harsh conditions. Compaction equipment lives in dust, vibration, and temperature swings. The A10VG's sealed, robust construction is built for exactly that environment.

Typical Dynapac Applications

Soil and landfill compactors — where the pump drives the hydrostatic propulsion system for the drum(s) and/or wheels.

Tandem asphalt rollers — where smooth speed transitions directly affect mat finish quality.

Combination and pneumatic-tire rollers — similar hydrostatic drive logic, often paired with a second pump section for vibration or steering circuits.

Compact pavers — where propulsion and auger/conveyor drive circuits may share pump technology from the same Rexroth family.

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Q1: What's the first thing to check if a Dynapac roller loses drive power?

A1: Start with the basics: hydraulic fluid level and condition, and charge pressure. A large percentage of "pump failure" complaints in the field turn out to be low fluid, a clogged filter, or air in the system rather than actual internal pump damage.

Q2: Does a failing A10VG pump affect anything besides propulsion?

A2: On machines where the A10VG is dedicated to the drive circuit, other functions like vibration or steering (often run by separate pump sections) may continue working normally even as propulsion degrades, which is actually a useful diagnostic clue that narrows the problem down to the drive circuit specifically.

Q3:What is the price and delivery time of the A10VG hydraulic pump for Dynapac Equipment？

A3: The specific price and delivery time will depend on the equipment model or specific product model you provide.

Q4:How to purchase an A10VG hydraulic pump for Dynapac Equipment?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.