Bosch Rexroth A10VO open-circuit hydraulic pump for Atlas Copco Deep hole drilling rig 5580019825 3216638981 3217852520 3222334452 5112287918 5580006108 5740182011

The A10VO is a swashplate-design, variable-displacement axial piston pump built specifically for open-circuit hydrostatic drives. Unlike its closed-circuit sibling (the A4VG), the A10VO draws fluid from a reservoir at the suction port and discharges it to the working circuit, with return flow going straight back to the tank rather than recirculating through the pump.

Why Atlas Copco Deep Hole Drilling Rigs Use This Pump Architecture

Atlas Copco's deep hole and core drilling rigs — the Diamec U6/U8 family being the clearest example — are built around hydraulic circuits that need to do several things simultaneously and precisely: rotate the drill string, apply and hold feed force, control chuck and rod-handling functions, and run auxiliary systems, all while the operator dials in fine adjustments hundreds of meters from the bit.

Precision Feed Control at Depth

Deep hole drilling is fundamentally a feed-force problem. Too much thrust and you risk deviation or rod damage; too little and the penetration rate collapses. The A10VO's infinitely variable displacement lets the rig's control system — whether a Pilot Hydraulic Control (PHC) console or an Automatic Performance Control (APC) system — modulate flow smoothly rather than in steps, which translates directly into smoother, more controllable feed and rotation response.

Duty-Cycle Durability

Drilling rigs run long shifts under sustained load, often in remote or underground sites where downtime is expensive and parts logistics are slow. The A10VO's swashplate rotary group is designed for long service life and good suction characteristics, which matters when a rig is drawing fluid through long suction lines on a mobile chassis rather than a stationary reservoir with ideal head pressure.

Compact Power-to-Weight Ratio

Underground and skid-mounted surface rigs are space- and weight-constrained. The A10VO's favorable power-to-weight ratio and relatively compact envelope (compared to older pump designs of equivalent output) let rig designers fit adequate hydraulic power into a chassis that still needs to move through drifts or narrow drill pads.

Multi-Circuit Integration via Through-Drive

A single A10VO rarely runs an entire rig alone. Through-drive lets a second pump — commonly a fixed-displacement gear pump feeding the water/flush system, winch, or hydraulic breakout wrench — mount directly on the back of the A10VO. This keeps the whole power pack compact and reduces the number of separate drive connections the OEM has to engineer.

Selecting and Specifying an A10VO for Rig Service

If you're specifying a replacement or upgrade pump for an Atlas Copco deep hole rig, a few decisions matter more than others:

Match the Control Type to the Existing Console

Pulling a DR (pressure control) pump and dropping in an LS (load-sensing) unit without also changing the valve bank and controller wiring will not work as a like-for-like swap. Confirm control type from the nameplate and type code before ordering.

Confirm Displacement Against Rig Horsepower

Oversizing a pump wastes input power and generates unnecessary heat; undersizing starves the rotation or feed circuit under load. Displacement should be matched to the prime mover's rated speed and the circuit's required flow at working pressure, not simply swapped by frame bolt pattern.

Check Series Compatibility

Rexroth has issued multiple A10VO series (31, 52/53, 60, among others) with different technical data sheets, mounting details, and control hardware. A series 31 pump and a series 60 pump of the same nominal size are not automatically interchangeable — verify against the current Rexroth data sheet (RE 927xx series) for the specific unit.

Verify Suction Conditions

Because the A10VO is an open-circuit pump, the minimum inlet pressure at the suction port is speed- and displacement-dependent. On a mobile rig with long or elevated suction lines, this is worth checking against Rexroth's suction pressure diagrams to avoid cavitation, especially at high engine speed with the pump destroked.

Confirm Hydraulic Fluid Compatibility

The A10VO is typically specified with HLP mineral oil per DIN 51524; rigs running biodegradable or fire-resistant fluids need to confirm compatibility and seal material before commissioning.

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Q1: How do I identify the correct replacement pump for my rig?

A1: Read the full type code and Mat.-Nr. (material number) off the nameplate on the existing pump, and cross-reference it against the current Rexroth data sheet for that series — frame size and mounting bolt pattern alone aren't sufficient to guarantee compatibility.

Q2: Can an A10VO be used with an Atlas Copco Diamec U6 or U8 rig?

A2: Yes — the Diamec family's PHC and APC hydraulic control architectures are commonly built around variable displacement axial piston pumps of this type, matched in size and control configuration to the rig's rotation and feed circuits.

Q3:What is the price and delivery time of the A10VO hydraulic pump for the Atlas Copco Deep hole drilling rig？

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

Q4:How to purchase an A10VO hydraulic pump for an Atlas Copco Deep hole drilling rig?

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