Bosch Rexroth A10VO open-circuit hydrauilc pump for the Palfinger Construction Machinery 150190 150194 150196 150196 151039

The A10VO is a variable-displacement axial piston pump in swashplate design, built for open-circuit hydraulic systems. In an open circuit, the pump draws oil from a reservoir, sends it through the valves and actuators, and returns it to the tank.

Key characteristics of the family:

Variable displacement: Output flow changes with the swashplate angle, so the pump delivers only what the system needs.

High pressure rating: Typical nominal pressures sit around 280 bar, with peak ratings higher depending on series and size (check the datasheet for your exact model).

Wide size range: Displacements run from compact units of roughly 18 cm³/rev up to around 140 cm³/rev.

Through-drive options: Many versions can mount a second pump on the back, which is useful on trucks with a single PTO.

Multiple control options: From simple pressure cut-off to load-sensing and electro-hydraulic control.

A10VO vs. A10VSO: What's the Difference?

You'll see both names in catalogues and on parts lists. The A10VSO (notably series 31) is the long-established industrial and mobile workhorse, while A10VO designations cover related series with differing mounting, port, and control details. They share the same operating principle. In practice, match the full type code on the nameplate, not just the family name.

Why the A10VO Suits Palfinger-Type Cranes and Construction Machinery

Load-Sensing Compatibility

Modern crane hydraulics often use load-sensing (LS) proportional valves, which let an operator move several functions at once (lift, slew, extend) without one starving the others. A load-sensing pump controller (the DFR family of controls) adjusts pressure and flow to meet the highest-loaded function's needs, plus a small margin.

Compact Packaging and PTO Drive

Truck-mounted cranes typically run off a power take-off (PTO), with space at a premium behind the cab. The A10VO's compact swashplate design and SAE-style mounting flanges make installation straightforward, and through-drive versions let you stack a second pump for auxiliary functions such as outriggers or a winch.

Durability in Dirty, Vibrating Environments

Construction sites mean dust, shock loads, temperature swings, and long idle periods followed by hard use. The A10VO's robust bearings and proven rotating group have a long track record in mobile service.

Installation Best Practices

Inlet Line and Priming

Most premature pump failures trace back to cavitation or air ingestion on the suction side. Keep these points in mind:

Use a short, large-diameter suction line with minimal bends

Avoid suction strainers that clog easily

Fill the pump housing with clean oil before first start

Keep inlet pressure within the datasheet limits

Case Drain Line

The case drain returns leakage oil to the tank. It should run directly to the reservoir, below the oil level, with minimal back-pressure. Back-pressure on the case can damage the shaft seal.

Shaft Alignment and PTO Coupling

Misalignment or poorly matched splines cause vibration and bearing wear. Follow torque specs on mounting bolts and check driveline angles on truck installations.

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Q1: How do I find the right replacement pump for my Palfinger crane?

A1: Read the nameplate on the existing pump, then cross-check the type code with the crane’s parts list or Palfinger’s service documentation. When in doubt, ask an authorized service partner.

Q2: What pressure can an A10VO handle?

A2: Nominal pressure is typically around 280 bar, with higher peak ratings on some series. The exact limits depend on size and series, so check the datasheet for your type code.

Q3: What are the price and delivery time for the A10VO hydraulic pump for the Palfinger Construction Machinery?

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

Q4: How do I purchase an A10VO hydraulic pump for the Palfinger Construction Machinery?

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