Bosch Rexroth | A10VO71DFR31R-PSC62K07
A10VO71DFR/31R-PSC62K07
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The A10VO71DFR/31R-PSC62K07 variable displacement pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and is built to modulate hydraulic flow for automated motion control. Its displacement is 71 cm³ per revolution, and when driven at 2200 rpm the unit provides 41.2 gallons per minute, matching mid-size circuit demands. The shaft turns clockwise, and the rotating group can reach 2600 rpm at less than full geometric volume to support rapid cycle rates. A C-size SAE J744 127-2 mounting flange aligns the housing with common diesel or electric prime movers. Fluid is drawn through a 2 inch SAE J518 suction port and discharged through a 1 inch SAE J518 B port, while a 7/16-20 UNF-2B pilot port supplies control pressure to the DFR regulator. The nominal working limit is 280 bar, giving the pump a pressure range suitable for servo-controlled industrial equipment.
The pump withstands transient rises to 350 bar, and the DFR control stage limits output by reacting when its internal differential reaches 14 bar. Driving components must be sized for a maximum input torque of 462 lb-ft, yet in continuous service at 280 bar the shaft transmits 233 lb-ft, improving energy use. If a secondary unit is mounted in series, the through-drive can pass up to 363 lb-ft without additional couplings. Internal leakage is routed to tank through a 7/8-14 UNF-2B case drain, protecting the bearings from excess housing pressure. Together, the pressure capability, regulated flow response, and torque handling define the operating envelope of the A10VO71DFR/31R-PSC62K07 within automated hydraulic systems.
Technical Specifications
Case Drain Port Size
7/8-14 UNF-2B
Dfr Differential Pressure
14 bar
Direction Of Rotation
Clockwise (R)
Displacement
71 cm3/rev
Max Flow @ 2200 Rpm
41.2 gpm
Max Input Torque (s Shaft)
462 lb-ft
Max Speed (vg<vgmax)
2600 rpm
Max Through-drive Torque (s Shaft)
363 lb-ft
Mounting Flange
SAE J744 127-2 (C)
Nominal Pressure
280 bar
Peak Pressure
350 bar
Pilot Port X Size
7/16-20 UNF-2B
Suction Port S Size
SAE J518 2 in
Torque @ 280 Bar
233 lb-ft
Working Port B Size
SAE J518 1 in
1620 Old Apex Road
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