Bosch Rexroth | AA10VSO45DRG31R-PPA12N00
AA10VSO45DRG/31R-PPA12N00
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The AA10VSO45DRG/31R-PPA12N00 pump is part of the A10VSO Variable Pumps series produced by Bosch Rexroth for closed-loop hydraulic automation. It varies axial-piston displacement to regulate actuator motion, delivering 45 cm³ per revolution to match medium-frame mobile and industrial drives. Clockwise shaft rotation coordinates with standard right-hand prime movers, and the unit accepts HLP hydraulic oil according to DIN 51524-2 for stable lubrication and sealing. At its nominal speed of 2600 rpm the pump outputs 117 L/min, developing 55 kW of hydraulic power for cylinders or motors while maintaining a nominal pressure of 280 bar. These operating points are supported by a bare weight of 23.5 kg, allowing direct mounting on gearboxes or diesel engines without excessive structural reinforcement.
The pressure envelope peaks at 350 bar, so system designers can include short high-load events without exceeding component limits; the pilot port tolerates the same 350 bar to ensure proportional control remains functional during those peaks. Drive sizing is simplified by the 200 Nm torque requirement at 280 bar, and reduced-displacement operation raises allowable shaft speed to 3100 rpm for fast cycling with lower flow. Suction integrity is protected by a minimum absolute inlet pressure of 0.8 bar to prevent cavitation, while an upper inlet limit of 10 bar accommodates boost pumps. Internal case drainage may rise to 2 bar absolute, and the continuous fluid temperature limit of +110 °C allows operation in warm ambient zones or with high duty factors without oil breakdown.
Technical Specifications
Direction Of Rotation
Clockwise
Displacement
45 cm³/rev
Hydraulic Fluid
HLP (DIN 51524-2)
Max Case Pressure (abs)
2 bar
Max Flow At Nominal Speed
117 L/min
Max Fluid Temp (continuous)
+110 °C
Max Inlet Pressure
10 bar
Max Speed (reduced Displacement)
3100 rpm
Maximum Pressure
350 bar
Min Inlet Pressure (abs)
0.8 bar
Nominal Pressure
280 bar
Nominal Speed (vgmax)
2600 rpm
Pilot Port Pressure Max
350 bar
Power At Nominal Speed
55 kW
Torque At 280 Bar
200 Nm
Weight (without Through Drive)
23.5 kg
1620 Old Apex Road
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