Bosch Rexroth A10VSO Axial Piston Variable Pump

Overview

The Bosch Rexroth A10VSO is a swash-plate design, variable-displacement axial piston pump built for open-circuit hydraulic power units, and it is one of the most widely specified variable pumps in industrial fluid power because of its favorable power-to-weight ratio, low noise level, and long service life across continuous-duty applications. The A10VSO series covers displacements from roughly 18 to 140 cc/rev across a common frame architecture, giving system designers a single, well-documented pump family that can be scaled across small machine tool hydraulic units through large industrial press and plastic injection molding power packs.

As the official trusted supplier and regional supplier for Bosch Rexroth, Seven Star LLC proudly supplies the A10VSO axial piston pump to industrial plants, hydraulic workshops, and OEM machine builders across the Sultanate of Oman and the wider GCC. Bosch Rexroth pumps supplied through Seven Star LLC come with manufacturer documentation, which matters on a rotating hydraulic component where a counterfeit unit can fail catastrophically inside a pressurized system.

Operating Principle

The Bosch Rexroth A10VSO pump uses a cylinder barrel containing a set of axial pistons that reciprocate against a swash plate as the barrel rotates with the drive shaft; the swash plate angle determines the stroke length of each piston and therefore the pump’s displacement per revolution. By varying the swash plate angle with an integrated hydraulic or electro-hydraulic control, the Bosch Rexroth A10VSO can continuously adjust its output flow from maximum displacement down toward zero while the drive motor continues running at constant speed, allowing the hydraulic circuit to match flow to actual load demand instead of relenting excess flow across a relief valve.

Because displacement is varied mechanically rather than by throttling flow after the pump, the Bosch Rexroth A10VSO delivers substantial energy savings compared with a fixed-displacement gear or vane pump running against a pressure-compensated relief circuit, particularly in duty cycles with long dwell or low-flow periods such as clamping, holding, or intermittent cylinder actuation. The pump’s controller program – pressure compensator, load-sensing, power control, or a combination – can be matched to the specific machine control strategy, and dual drain ports allow flexible case-drain routing in tandem or multi-pump power unit configurations.

Engineering Design of the Bosch Rexroth A10VSO

The Bosch Rexroth A10VSO housing is a cast, through-drive-capable design rated for 100% through-drive torque, which lets a second Bosch Rexroth A10VSO or auxiliary pump be mounted directly on the back of the first unit to build a compact tandem pump assembly without a separate coupling and bracket, a common requirement on machine tools and mobile equipment that need two independent hydraulic circuits from a single prime mover. The rotating group is supported on a shaft bearing arrangement engineered for continuous industrial duty, and the pump is compatible with standard mineral hydraulic oils as well as HF fire-resistant fluids where fire safety codes require them.

Displacement control options range from a simple manual override and pressure-compensated control through load-sensing and remote proportional electro-hydraulic control, letting the same base pump casting serve as either a simple pressure-limited power source or the flow-matching heart of a fully closed-loop hydraulic control system. Nominal operating pressure is rated at 280 bar continuous with peak pressure capability to 350 bar, and the pump’s good suction characteristics allow reliable self-priming performance even at the higher end of its speed range.

Key Features

The Bosch Rexroth A10VSO variable pump gives hydraulic system designers and maintenance engineers the following advantages:

• Swash-plate variable displacement from approximately 18 to 140 cc/rev across the series, matching a wide range of power unit sizes.
• Continuous operating pressure rated to 280 bar with peak capability to 350 bar for demanding industrial cycles.
• 100% through-drive capability for compact tandem and multi-pump power unit configurations.
• Multiple control options – pressure compensator, load-sensing, power control, and electro-hydraulic proportional – on a common casting.
• Favorable power-to-weight ratio and low noise level compared with equivalent fixed-displacement alternatives.
• Dual drain ports for flexible case-drain plumbing in complex power unit layouts.
• Compatibility with mineral hydraulic oil and HF fire-resistant fluids for fire-code-sensitive installations.
• Long service life supported by a well-established, widely stocked spare parts and seal kit program.

Industrial Applications

The Bosch Rexroth A10VSO axial piston pump is specified across injection molding machines, hydraulic presses, machine tools, mobile construction and material handling equipment, and industrial power units feeding cylinders, motors, and actuators throughout the region’s manufacturing, cement, and oilfield service sectors. The Bosch Rexroth A10VSO’s variable-displacement design is particularly valuable in duty cycles with significant idle or holding time, where a fixed-displacement pump would waste energy across a relief valve while the A10VSO simply reduces its swash plate angle and draws only the power the cycle actually requires.

In Oman and the GCC, Seven Star LLC distributes Bosch Rexroth A10VSO pumps and seal kits to hydraulic workshops, OEM machine builders, and plant maintenance departments across Muscat, the Sohar industrial zone, and the Salalah free zone, supporting both new power unit builds and breakdown replacement of worn or failed pumps. Planning a spare for a rotating component like this is critical, since an unplanned pump failure on a press or injection molding line can halt production until a replacement is fitted.

Technical Specifications

Representative specifications for the Bosch Rexroth A10VSO series 31 axial piston variable pump are summarized below; exact displacement, control type, and shaft configuration vary by ordering code.

Request a Quote for Bosch Rexroth A10VSO

Seven Star LLC supplies the Bosch Rexroth A10VSO axial piston pump and associated seal kits on request, and supports formal RFQs, power unit bill-of-material quotations, and urgent breakdown replacement enquiries in Oman. Contact our hydraulics division for the current A10VSO datasheet, control-option selection assistance, or a quotation against a specific displacement and ordering code. In Oman and the GCC, Seven Star LLC supplies every A10VSO pump on request with manufacturer documentation and lead time confirmed at quotation.

Browse the full Bosch Rexroth range or see more Pumps products supplied by Seven Star LLC in Oman and the GCC.