Bosch Rexroth | A10VO100DFR131R-PSC62K07
A10VO100DFR1/31R-PSC62K07
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The A10VO100DFR1/31R-PSC62K07 axial piston variable pump is part of the A10VSO Variable Pumps series and is manufactured by Bosch Rexroth. It supplies hydraulic power to closed-loop control systems in mobile and industrial automation. The geometric displacement of 100 cm³ per revolution establishes the volume moved by each shaft rotation, while a differential pressure setting of 14 bar on the DFR1 control maintains constant power when load conditions fluctuate. When operated at 1800 rpm with full displacement, the pump delivers 180 L/min, and it can reach a maximum flow of 200 L/min to satisfy circuits with higher demand. Continuous operation is supported at a nominal pressure of 280 bar, and short load peaks up to 350 bar are permitted to accommodate pressure transients. Speeds of up to 2000 rpm are allowed at full displacement, and the permitted speed increases to 2400 rpm when the displacement is reduced, allowing designers to balance flow against mechanical limits. A minimum inlet pressure of 0.8 bar absolute prevents cavitation at the suction port.
The case construction allows a maximum internal case pressure of 2 bar absolute, and a case volume of 2.2 L provides enough space for internal leakage oil before it is routed back to tank. Suction conditions can tolerate up to 30 bar absolute at the inlet, enabling the pump to work with supercharged feed lines. Shaft loading is governed by a maximum torque of 445 Nm at 280 bar, while at 100 bar the torque demand drops to 159 Nm, offering flexibility for smaller prime movers during low pressure cycles. A rotor moment of inertia of 0.0167 kg·m² assists rapid acceleration and deceleration in servo-controlled drives. The control port tolerates pilot pressures up to 350 bar, so remote displacement adjustment can be executed without auxiliary pressure reducers. Dry weight is 45 kg, which influences mounting requirements and support structures inside the power unit.
Technical Specifications
Case Pressure Max (abs)
2 bar
Case Volume
2.2 L
Differential Pressure Setting (dfr1)
14 bar
Flow At 1800 Rpm (vg Max)
180 L/min
Geometric Displacement
100 cm³/rev
Inlet Pressure Max (abs)
30 bar
Inlet Pressure Min (abs)
0.8 bar
Max Flow (vg Max)
200 L/min
Max Speed (vg < Vg Max)
2400 rpm
Max Speed (vg Max)
2000 rpm
Max Torque (280 Bar)
445 Nm
Moment Of Inertia
0.0167 kg·m²
Nominal Pressure
280 bar
Peak Pressure
350 bar
Pilot Pressure Max (port X)
350 bar
Torque (100 Bar)
159 Nm
Weight (without Fluid)
45 kg
1620 Old Apex Road
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