Bosch Rexroth | A10VSO71DRG31R-PPA12N00-TEST-CODE-000
A10VSO71DRG/31R-PPA12N00 Test Code 000
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The A10VSO71DRG/31R-PPA12N00 variable pump belongs to the A10VSO Variable Pumps series produced by Bosch Rexroth for closed-loop hydraulic automation. It adjusts delivery by changing the swashplate angle while turning clockwise. A geometric displacement of 71 cm³ per revolution yields 128 L/min at 1800 rpm and up to 156 L/min when the drive reaches its nominal speed. Continuous duty is specified at 2200 rpm, with a short-term ceiling of 2600 rpm. Shaft power reaches 69 kW at 1800 rpm and can rise to 73 kW as flow increases. System limits include a nominal pressure of 280 bar and a maximum setting of 350 bar, allowing the unit to support actuators that require high work pressure.
The internal case holds 1.6 L of oil for cooling and bearing lubrication, and the rotating group presents a moment of inertia of 0.0083 kg·m², enabling rapid speed changes with limited drive energy. Under the reference load of 280 bar the shaft produces 316 Nm of torque, yet the assembly weighs only 35.2 kg, easing installation in mobile or stationary power units. The integrated DRG regulator maintains a differential pressure of 20 bar and consumes 4.5 L/min of pilot fluid, so control ports keep the swashplate stable during fast load reversals; the pilot flow also prevents cavitation in the control piston and preserves response accuracy across the full displacement range.
Technical Specifications
Case Volume
1.6 L
Direction Of Rotation
Clockwise
Drg Differential Pressure
20 bar
Drg Pilot Fluid Consumption
4.5 L/min
Flow At 1800 Rpm
128 L/min
Geometric Displacement
71 cm³/rev
Max Flow At Nnom
156 L/min
Max Permissible Speed
2600 rpm
Max Power
73 kW
Max Torque (280 Bar)
316 Nm
Maximum Pressure
350 bar
Moment Of Inertia
0.0083 kg·m²
Nominal Pressure
280 bar
Power At 1800 Rpm
69 kW
Rated Speed (vg Max)
2200 rpm
Weight (without Through Drive)
35.2 kg
1620 Old Apex Road
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