Bosch Rexroth | A10VSO100DFR31R-PPA12KB6
A10VSO100DFR/31R-PPA12KB6
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The A10VSO100DFR/31R-PPA12KB6 pump belongs to the A10VSO Variable Pumps series manufactured by Bosch Rexroth. This axial piston unit supplies closed-loop hydraulic systems with adjustable flow for cylinders and motors. Its displacement is 100 cm³ per revolution, allowing predictable volumetric output for circuit designers. When the shaft turns at 1800 rpm the pump delivers 47.6 gpm, supporting medium-duty actuator feeds, and at 2000 rpm the flow rises to a maximum of 52.8 gpm for short-term demand peaks. The housing withstands a nominal pressure of 280 bar so continuous operation can occur without risk of case deformation, while a peak rating of 350 bar permits brief pressure transients. For full stroke service the rotating group can run up to 2000 rpm, a limit that balances centrifugal loading with oil film stability. Fluid enters through a 2 1/2 in SAE J518 suction port which minimizes inlet restriction, and leaves via a 1 1/4 in SAE J518 working port sized to keep velocity within acceptable limits.
In variable displacement mode the rotating assembly can spin to 2400 rpm when set below the maximum swash plate angle, aiding compact power density in load-sensing circuits. The internal case drain is restricted to 2 bar, maintaining bearing lubrication while preventing excessive heat generation. A 1 1/16-12 UNF-2B drain port thread provides a standardized connection for that return line, and the 7/16-20 UNF-2B pilot port thread matches common test hoses for remote pressure control. The pilot interface tolerates pressures up to 350 bar, allowing direct interaction with high-pressure compensators. Under a 280 bar differential the pump can transmit 125 hp to the hydraulic network at full displacement, while the same pressure at 1800 rpm draws 111 hp from the prime mover for energy planning. Output torque reaches 328 lb-ft at rated pressure and maximum volume, supplying the shaft strength needed for direct coupling to industrial diesel or electric drives.
Technical Specifications
Case Drain Max Pressure
2 bar (30 psi)
Displacement
100 cm³/rev (6.10 in³)
Drain Port Thread
1 1/16-12 UNF-2B
Flow (1800 Rpm)
47.6 gpm (180 l/min)
Max Flow (2000 Rpm)
52.8 gpm (200 l/min)
Max Power (Δp 280 Bar)
125 hp (93 kW)
Max Speed (vg < Vg Max)
2400 rpm
Max Speed (vg Max)
2000 rpm
Nominal Pressure
280 bar (4100 psi)
Peak Pressure
350 bar (5100 psi)
Pilot Port Max Pressure
350 bar (5100 psi)
Pilot Port Thread
7/16-20 UNF-2B
Power (1800 Rpm, Δp 280 Bar)
111 hp (84 kW)
Suction Port Size
2 1/2 in SAE J518 (ISO 6162-1)
Torque (Δp 280 Bar, Vg Max)
328 lb-ft (445 Nm)
Working Port Size
1 1/4 in SAE J518 (ISO 6162-2)
1620 Old Apex Road
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