Bosch Rexroth | AA10VSO71DFR31R-PPA12K68
AA10VSO71DFR/31R-PPA12K68
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The AA10VSO71DFR/31R-PPA12K68 pump from Bosch Rexroth belongs to the A10VSO Variable Pumps series and supplies closed-loop hydraulic circuits with adjustable flow for automated machinery. Its geometric displacement is 71 cm³ per revolution, so each shaft turn moves a defined volume that determines circuit output. At a rated speed of 2200 rpm the unit delivers 156 l/min, providing the flow needed for medium-power actuators. The nominal pressure rating of 280 bar allows continuous operation in systems that demand high force, while a maximum pressure limit of 350 bar accommodates short overloads during rapid motion profiles. To maintain inlet conditions the pump requires a minimum suction pressure of 0.8 bar and connects to the reservoir through a 2-inch SAE suction port that follows ISO 6162-1. Internal leakage collects in a 1.6 liter case volume, ensuring oil is retained for bearing lubrication before being routed back to tank.
Drive requirements and interface details support integration into multi-pump arrangements. The shaft needs 113 Nm of torque at 100 bar and 316 Nm at 280 bar, figures that help size the prime mover for both standby and full load. When process demands increase, the pump can turn up to a permissible 2600 rpm, extending the speed range beyond the rated point. A maximum case pressure of 2 bar protects shaft seals by limiting back pressure in the housing. Control signals enter through a pilot port threaded 7/16-20 UNF-2B, while working fluid exits the 1-inch SAE pressure port that matches ISO 6162-1 manifolds. For through-drive configurations the hub uses a 7/8-inch, 13-tooth, 16/32DP spline designated K68, allowing additional pumps to be mounted in series. The bare unit weighs 35.2 kg, a factor considered when selecting mounting brackets and handling equipment during installation.
Technical Specifications
Case Volume
1.6 L
Drive Torque At 100 Bar
113 Nm
Drive Torque At 280 Bar
316 Nm
Flow At Rated Speed
156 l/min
Geometric Displacement
71 cm³/rev
Max Case Pressure (abs)
2 bar
Max Permissible Speed
2600 rpm
Maximum Pressure
350 bar
Min Suction Pressure (abs)
0.8 bar
Nominal Pressure
280 bar
Pilot Port X Thread
7/16-20 UNF-2B
Rated Speed (vg Max)
2200 rpm
Suction Port S Size
2 in SAE (ISO 6162-1)
Through Drive Hub
7/8 in 13T 16/32DP (K68)
Weight (no Through Drive)
35.2 kg
Working Port B Size
1 in SAE (ISO 6162-1)
1620 Old Apex Road
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