Bosch Rexroth A10VSO Variable Piston Pump

The Bosch Rexroth A10VSO Series is the industry standard for medium-pressure, open-circuit hydraulic systems. Utilizing a highly efficient swashplate axial piston design, this variable displacement pump is renowned for its exceptional reliability, low operating noise, and energy-saving capabilities. With a nominal pressure of 280 bar, the A10VSO (available in sizes from 10 to 45 and beyond) is the go-to power source for a vast range of stationary industrial applications, from plastic injection molding to machine tools.

Key Features:

Series: A10VSO (Open Circuit, Industrial)
Sizes Included: 10, 18, 28, 32, 45
Max. Pressure: 280 bar (Nominal) / 350 bar (Peak)
Model Highlight: A10VSO45DFR/31R-PPA12N00
Control Type: DFR (Pressure & Flow Control / Load Sensing).

Product Overview

The Rexroth A10VSO Variable Pump is engineered for continuous operation in demanding industrial environments. The flow is proportional to the drive speed and the displacement, and it can be infinitely varied by adjusting the swashplate angle. The series 31 design offers excellent suction characteristics and remarkably low noise levels, ensuring a better working environment in factories.

Why Choose the Rexroth A10VSO Series?

Energy Efficient (DFR Control): Models equipped with the DFR (Pressure and Flow Control) valve operate on the Load Sensing principle. The pump only delivers the exact amount of flow and pressure required by the actuator, drastically reducing energy consumption and heat generation.
Low Noise Level: The optimized port plate and robust housing design minimize pulsations and mechanical noise, making it ideal for indoor industrial settings.
High Reliability: Features high-quality hydrostatic bearings for the cylinder barrel and robust rolling bearings for the drive shaft, guaranteeing a long service life.
Through-Drive Option: Can be equipped with a through-drive to mount additional pumps (like gear pumps for cooling loops), creating a compact multi-circuit power unit.

Common Applications:

Plastics Machinery: Injection molding machines, blow molding.
Machine Tools: CNC machining centers, press brakes, hydraulic presses.
Metallurgy: Steel mill lubrication systems, rolling mills.
General Manufacturing: Hydraulic power units (HPUs), test stands.

Specification	Value / Description
Product Type	Variable Displacement Axial Piston Pump
Circuit Type	Open Circuit
Series	A10VSO (Series 31)
Displacement ( $V_{g max}$ )	45 cm³/rev (Also available: 10, 18, 28, 32 cc/rev)
Nominal Pressure	280 bar (4000 psi)
Peak Pressure	350 bar (5100 psi)
Model Breakdown	A10VSO 45 DFR / 31 R – P P A 12 N00
– A10VSO	Swashplate variable pump, Industrial version, Open circuit
– 45	Size: 45 cc/rev
– DFR	Control: Pressure and Flow Control (Load Sensing)
– 31 R	Series 31, Right (Clockwise) rotation
– P	Shaft: Parallel keyed shaft (DIN 6885)
– P	Mounting Flange: ISO 2-hole
– A	Port Connections: SAE flange ports, rear/side
– 12	NBR seals (Nitrile)
– N00	Standard version, No through-drive