Bosch Rexroth | AA10VO100DRG31R-PKC62N00
AA10VO100DRG/31R-PKC62N00
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The AA10VO100DRG/31R-PKC62N00 variable pump is produced by Bosch Rexroth within the A10VSO Variable Pumps series. It is an axial piston unit that supplies pressurized hydraulic fluid to actuators and allows continuous displacement adjustment for automated motion control. Its displacement is 100 cm³ per revolution, determining the volume transferred each shaft rotation. At nominal speed it can deliver a maximum flow of 52.8 gpm, a key figure for circuit sizing. The pump supports a nominal pressure of 280 bar for continuous duty, while a peak pressure rating of 350 bar covers short-term overloads. When the system operates at 280 bar, the drive must supply up to 125 hp, and the shaft transmits 324 lb-ft of torque for coupling calculations. With the swashplate at full stroke the permitted speed is 2000 rpm, defining the limit when maximum flow is required. The housing weighs 99 lb without fluid, which affects mounting and service planning.
Additional limits govern suction conditions, control behavior, and auxiliary connections. When the displacement is reduced, the speed ceiling increases to 2400 rpm so higher rotational speed is possible at lower flow. Inlet pressure may reach 435 psi absolute, yet it must not fall below 12 psi absolute to prevent cavitation. Case drain pressure is limited to 29 psi absolute to protect seals and bearing lubrication. The pressure compensator in the DRG control operates with a standard differential of 290 psi, and achieving that setting requires only 0.4 gpm of pilot flow, minimizing losses in the control circuit. Displacement change hysteresis does not exceed 45 psi, keeping pressure fluctuations small during load transitions. Pilot pressure port X uses a 7/16-20 UNF-2B thread, providing a common interface for external control lines.
Technical Specifications
Displacement
100 cm3/rev (6.10 in3)
Drg Differential Pressure (std)
290 psi (20 bar)
Drg Pilot Flow At Std Δp
0.4 gpm (1.5 L/min)
Hysteresis (dr/drg) Max
45 psi (3 bar)
Max Case Drain Pressure (abs)
29 psi (2 bar)
Max Flow (at Nnom)
52.8 gpm (200 L/min)
Max Inlet Pressure (abs)
435 psi (30 bar)
Max Power (at 280 Bar)
125 HP (93 kW)
Max Speed (at Vg < Vg Max)
2400 rpm
Max Speed (at Vg Max)
2000 rpm
Min Inlet Pressure (abs)
12 psi (0.8 bar)
Nominal Pressure
280 bar (4000 psi)
Peak Pressure
350 bar (5100 psi)
Pilot Pressure Port X
7/16-20 UNF-2B
Torque (at 280 Bar)
324 lb-ft (445 Nm)
Weight (without Fluid)
99 lb (45 kg)
1620 Old Apex Road
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