A10VSO18DFR1/31R-PSC12N00 SO36

The A10VSO18DFR1/31R-PSC12N00 SO36 pump is built by Bosch Rexroth for the A10VSO Variable Pumps series and provides adjustable fluid delivery for hydraulic automation. The displacement equals 18 cm³ per revolution, so each shaft turn transfers that volume into the circuit. When operated at 1800 rpm with the swashplate at maximum setting, flow reaches 32 L/min, supplying steady medium-capacity oil to downstream valves and actuators. Driving the unit under the same speed and a pressure of 280 bar requires 15 kW of mechanical power, a figure used to match electric motors or diesel engines. A case volume of 0.4 L holds internal leakage oil for cooling and lubrication. Without a through drive the pump weighs 12.9 kg, which affects mounting choices on compact power packs and vehicle frames.

For continuous duty the nominal pressure is 280 bar, while short-term peaks can rise to a maximum pressure of 350 bar to absorb transient loads. The shaft may turn up to 3300 rpm at full displacement, allowing higher flow rates in high-speed drive arrangements. At 280 bar and maximum volume the drive must transmit 80 Nm of torque, information needed when selecting couplings and gearboxes. The rotating group’s moment of inertia is 0.00093 kg·m², keeping acceleration demands low and enabling quick response in closed-loop control systems. These parameters together define the pump’s performance envelope and guide its integration into presses, injection machines, and mobile hydraulic platforms.