Bosch Rexroth | AA10VSO28DR31R-PKC62K40-TEST-CODE-000
AA10VSO28DR/31R-PKC62K40 Test Code 000
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The AA10VSO28DR/31R-PKC62K40 Test Code 000 pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth. It is a variable-displacement axial piston unit intended for closed-loop hydraulic automation where controlled oil delivery is required. The pump provides a displacement of 28 cm³ per revolution. When driven at 1,800 rpm with the swashplate at maximum displacement it supplies 13.3 gpm, and this output rises to 22 gpm at the rated speed of 3,000 rpm. Under a differential pressure of 100 bar the shaft transmits 33 lb-ft of torque, while 280 bar operation raises the torque demand to 92 lb-ft. Continuous duty is supported by a nominal pressure of 4,100 psi, and transient load peaks are permitted up to 5,100 psi.
The standard pressure compensator is set for 4,100 psi, so delivery is automatically reduced when system pressure reaches that level. Dynamic control is aided by a maximum pressure change rate of 232,060 psi per second. Inlet conditions are defined by a minimum absolute suction pressure of 12 psi and a suction port limit of 145 psi to prevent cavitation. The case drain circuit may see up to 30 psi, and the internal pilot line tolerates as much as 5,100 psi during control events. A case volume of 0.185 gal stores leakage flow for bearing lubrication before it returns to tank, while an assembled mass of 40 lb allows installation without lifting equipment in most power units.
Technical Specifications
Case Drain Port Max Pressure
30 psi
Case Volume
0.185 gal
Displacement
28 cm³/rev
Dr Pressure Setting (standard)
4100 psi
Flow At 1800 Rpm (vg Max)
13.3 gpm
Flow At Max Speed (vg Max)
22 gpm
Max Pressure Change Rate
232060 psi/s
Max Speed (vg Max)
3000 rpm
Min Suction Port Pressure (abs)
12 psi
Nominal Pressure
4100 psi
Peak Pressure
5100 psi
Pilot Port Max Pressure
5100 psi
Suction Port Max Pressure
145 psi
Torque At 100 Bar (vg Max)
33 lb-ft
Torque At 280 Bar (vg Max)
92 lb-ft
Weight (without Through Drive)
40 lb
1620 Old Apex Road
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