AA10VO100DFR/31R-VUC62K07

The AA10VO100DFR/31R-VUC62K07 pump is produced by Bosch Rexroth and belongs to the A10VSO Variable Pumps series. This variable-displacement axial piston unit supplies pressurized hydraulic fluid in automation circuits. Its geometric displacement is 100 cm³ per revolution, so each turn of the shaft moves that volume into the system. At 1800 rpm with the displacement set to maximum, the pump delivers 180 L/min, which suits medium-flow actuator groups. When the shaft speed reaches the rated peak of 2000 rpm, the flow output rises to 200 L/min, providing extra capacity during dynamic cycles. The permitted direction of flow is from port S to port B, guiding circuit designers on connection layout. Continuous operation is allowed up to a nominal pressure of 280 bar, enabling stable power transmission in standard duty. Short transients can reach a peak pressure of 350 bar, so the unit handles brief overloads without damage.

The differential pressure setting of 14 bar maintains the regulator’s control margin between load sense and standby, ensuring prompt swashplate adjustment without external orifice plates. During idle periods the pump holds a standby pressure of 18 bar, keeping circuits primed while limiting heat generation. The inlet side accepts absolute pressures down to 0.8 bar, allowing installation above the reservoir, and up to 30 bar when boost feeding is available; this wide range supports reliable lubrication and reduces cavitation risk. Case drain pressure must stay below 2 bar absolute to protect shaft seals and bearing service life. Service ports are located on the side in version 62, which simplifies hose routing inside compact power units and eases maintenance access. All dynamic seals are made from FKM, giving compatibility with common mineral oils and higher temperature ranges.