Bosch Rexroth | AA10VO28DFR152L-VSC61N00
AA10VO28DFR1/52L-VSC61N00
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The AA10VO28DFR1/52L-VSC61N00 variable displacement pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and supplies hydraulic power to automated machinery. Its displacement of 28 cm³ per revolution sets the volume of oil moved each shaft turn, enabling precise actuator speed control. When the swashplate is at maximum setting the shaft can run at 3000 rpm, and at that speed the unit sends 84 L/min to the pressure line for medium-size circuits. A nominal pressure rating of 280 bar defines continuous working load, while an input power demand of 39 kW at that pressure helps designers match electric or diesel drives. The torque requirement is 45 Nm at 100 bar, indicating moderate shaft loading during low-pressure cycles. An SAE J518 1 1/4 in inlet port accommodates the suction hose, and a minimum absolute inlet pressure of 0.8 bar prevents cavitation at high speed. Output oil leaves through an SAE J518 3/4 in pressure port that fits standard flange adapters.
The pump tolerates a maximum pressure of 350 bar for brief overloads without internal damage. Its DFR1 standard control keeps differential pressure near 14 bar so the swashplate automatically adjusts flow as load varies. A permissible speed ceiling of 3600 rpm allows short acceleration phases, and the shaft can transmit 125 Nm at 280 bar to handle full load torque. A 3/4-16 UNF-2B case drain port returns leakage oil to tank, and internal case pressure must stay below 2 bar to protect seals and bearings. The dry weight of 15 kg permits single-person handling during installation or maintenance. These limits support reliable operation in hydraulic automation systems that demand consistent pressure, controllable flow, and compact sizing.
Technical Specifications
Case Drain Port
3/4-16 UNF-2B
Case Pressure Max (abs)
2 bar
Differential Pressure (dfr1 Std.)
14 bar
Displacement
28 cm³/rev
Inlet Port
SAE J518 1 1/4 in
Max Flow At 3000 Rpm
84 L/min
Max Permissible Speed (vg<vgmax)
3600 rpm
Maximum Pressure
350 bar
Min Inlet Pressure (abs)
0.8 bar
Nominal Pressure
280 bar
Power At Nnom (280 Bar)
39 kW
Pressure Port
SAE J518 3/4 in
Speed At Vg Max
3000 rpm
Torque At 100 Bar
45 Nm
Torque At 280 Bar
125 Nm
Weight (without Fluid)
15 kg
1620 Old Apex Road
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