Bosch Rexroth A24VG axial piston variable double pump

The A24VG is a variable displacement axial piston double pump built on a swashplate design, engineered for closed-circuit hydrostatic drives in mobile equipment. In plain terms: it's actually two independent pumping units housed in a single casing, sharing one input shaft, but each capable of delivering its own flow, direction, and pressure completely independent of the other.

That's the defining feature. Most machines that need two separate hydraulic functions — say, travel drive and slew (swing) drive on an excavator — historically needed either two separate pumps or a more complex, compromise-prone shared circuit. The A24VG solves that by combining dual rotary groups into one compact package, each with its own swashplate that can be adjusted to vary displacement independently.

Key Design Characteristics

Two independent flows from a single drive input, each proportional to speed and displacement

Infinitely variable displacement via swashplate angle adjustment

Smooth reversal through neutral, meaning flow direction changes without harsh transitions

Integrated pressure relief valves (typically four) on the high-pressure side, protecting both pump and motor from overload

Boost pressure functionality, with relief valves doing double duty as boost valves

This is a pump designed specifically for closed-loop hydrostatic transmissions — not general-purpose open-circuit fluid transfer.

Typical Applications

Excavators — separate circuits for travel drive and upper-structure slewing

Cranes — independent hoist, slew, and travel functions without cross-interference

Drilling rigs — simultaneous rotary and feed functions

Other multi-function construction and mining equipment where two hydrostatic circuits need to run off one prime mover

The practical benefit is efficiency and control precision. Because each circuit is independently variable, the operator gets smoother, more responsive control, and the engine doesn't have to compromise between two competing hydraulic demands routed through a single variable unit.

Choosing the Right A24VG for Your Application

A few practical questions worth answering before specifying a size:

1. What are the independent flow demands of each circuit? Travel and slew drives rarely need identical displacement — that's exactly why the asymmetric size combinations (like 110-85 or 125-110) exist.

2. What's the realistic peak operating pressure, not just the theoretical maximum? Sizing a pump to run near its 500 bar ceiling constantly will cost you in service life and unplanned downtime.

3. Does the application benefit from on-board electronics? If engine downsizing, emissions reduction, or travel drive efficiency gains are priorities, the OBE variant deserves a serious look rather than defaulting to a purely mechanical control setup.

4. What fluid environment will the machine operate in? Standard mineral oil, environmentally acceptable fluid, or fire-resistant fluid — this decision affects seal compatibility and should be locked in before final pump selection.

For more information on the A24VG hydraulic pump, please visit https://www.baolilaihydraulic.com/product/.

Specifications

Selection Table

Q1: What machines commonly use this pump?

A1: Excavators, cranes, and drilling equipment are the most common applications — essentially any mobile machine that needs two independent, simultaneously operating hydrostatic circuits from a single engine.

Q2: How does the pump protect itself from overload?

A2: Four integrated pressure relief valves on the high-pressure side guard both the pump and the connected motor from overload, and those same valves double as boost pressure valves.

Q3: How to purchase an A24VG hydraulic pump?

A3: You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.

Q4: What is the price and delivery time of the A24VG hydraulic pump?

A4:The specific price and delivery time will be provided based on the specific model you provide.