Bosch Rexroth | AA10VO60ED7252R-VSC62N00P
AA10VO60ED72/52R-VSC62N00P
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The AA10VO60ED72/52R-VSC62N00P pump belongs to the A10VSO Variable Pumps series and is produced by Bosch Rexroth for closed-loop hydraulic automation. It delivers oil from port S to port B, providing controlled variable displacement for actuator circuits. The pump tolerates inlet conditions between 12 psi absolute and 435 psi absolute, protecting the rotating group from cavitation or seal stress. System working pressure can be maintained at 4000 psi, while short load peaks up to 5100 psi are accepted without structural damage. A maximum case drain pressure of 29 psi absolute prevents leakage across shaft seals. Side-mounted ports identified as code 62 N00 simplify manifold routing, and the N00 through-drive designation indicates no secondary pump is coupled, reducing overall package length.
The integrated ED72 proportional valve modulates displacement with a 24 V supply that may vary by ±20 %. Control begins at 50 mA when the pump is at maximum pressure and at 600 mA when minimum pressure is demanded, allowing linear flow adjustment. Electronic circuitry must restrict current to 0.77 A, and a continuous 100 % duty cycle supports constant command signals without overheating. A dither of 100 Hz reduces static friction in the control spool for finer positioning. The valve coil presents a nominal resistance of 22.7 Ω, which helps size the driver electronics, and the winding operates safely up to 239 °F, ensuring stable performance in elevated fluid or ambient temperatures.
Technical Specifications
Case Drain Pressure Max (abs)
29 psi (2 bar)
Direction Of Flow
S To B
Ed72 Coil Voltage
24 V (±20%)
Ed72 Control Current Start (pmax)
50 mA
Ed72 Control Current Start (pmin)
600 mA
Ed72 Current Limit
0.77 A
Ed72 Dither Frequency
100 Hz
Ed72 Duty Cycle
100%
Ed72 Nominal Resistance
22.7 Ω
Inlet Pressure Max (abs)
435 psi (30 bar)
Inlet Pressure Min (abs)
12 psi (0.8 bar)
Nominal Pressure
4000 psi (280 bar)
Peak Pressure
5100 psi (350 bar)
Port Orientation
Side (62 N00)
Through Drive
None (N00)
Valve Temp Max (ed72)
239 °F (115 °C)
1620 Old Apex Road
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