Bosch Rexroth | AA4VG71HD3D132L-NSF52F001D
AA4VG71HD3D1/32L-NSF52F001D
Request a Quote
Call For Quote
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The AA4VG71HD3D1/32L-NSF52F001D pump is produced by Bosch Rexroth within the AA4VG Variable Pumps series and serves in hydraulic automation where variable axial piston output is required. Its geometric displacement of 71 cm³ per revolution sets the basic flow capacity, and at the nominal speed of 3300 rpm the unit can supply up to 234 l/min for work circuits. Intermittent duty allows speeds to reach 4100 rpm, supporting short bursts of extra flow. The housing withstands a nominal pressure of 400 bar and accepts peaks to 450 bar, so high actuation forces can be generated without upsizing lines. When operated at 400 bar the shaft must transmit 156 kW, and the resulting hydraulic load corresponds to 452 Nm of torque, figures used to choose the prime mover and coupling. Minimum suction pressure of 0.8 bar absolute lets the pump draw fluid from shallow tanks, minimizing installation height.
A dedicated charge section displaces 19.6 cm³ per revolution to keep the main circuit flooded and prevent cavitation. Displacement change begins at a pilot pressure of 6 bar and is completed by 18 bar, giving predictable swashplate positioning. The control spool also requires at least 20 bar above case pressure to move reliably under load. Internal leakage is collected in a 1.3 liter case volume that moderates fluid temperature and dampens pressure spikes. Continuous running limits case differential pressure to 2 bar, while brief surges up to 10 bar are permissible during rapid load changes, factors that govern drain line sizing. These internal pressures, together with the charge flow and pilot stages, ensure stable operation and protect the pump during the duty cycles typical of automated hydraulic machinery.
Technical Specifications
Boost Pump Displacement
19.6 cm3/rev
Case Differential Pressure (cont.)
2 bar
Case Pressure Peak
10 bar
Case Volume
1.3 l
Control Pressure Min (hd)
20 bar (above case)
Geometric Displacement
71 cm3/rev
Max Flow At Nominal Speed
234 l/min
Max Speed (intermittent)
4100 rpm
Maximum Pressure
450 bar
Nominal Pressure
400 bar
Nominal Speed
3300 rpm
Pilot Pressure End (hd)
18 bar
Pilot Pressure Start (hd)
6 bar
Power At 400 Bar
156 kW
Suction Pressure Min (absolute)
0.8 bar
Torque At 400 Bar
452 Nm
1620 Old Apex Road
Shipping & Payment Options
