Bosch Rexroth | AA10VO45DFR152L-VSC64N00
AA10VO45DFR1/52L-VSC64N00
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The AA10VO45DFR1/52L-VSC64N00 variable pump is part of the A10VSO Variable Pumps series from Bosch Rexroth and supplies pressurized fluid for hydraulic automation tasks. Its displacement of 45 cm³ per revolution defines the volume delivered each shaft turn, and a flow of 81 L/min at 1800 rpm covers medium actuator demands. Continuous service is supported by a nominal pressure of 280 bar, while a peak pressure limit of 350 bar absorbs short surges. The pressure control standard setting holds the line at 280 bar to maintain system stability. A power draw of 38 kW at 1800 rpm and 280 bar guides prime-mover sizing, and a required torque of 72 Nm at 100 bar indicates startup load. The rotating assembly’s 0.0033 kg·m² moment of inertia influences acceleration, the dry weight of 21 kg affects mounting design, and a 1.0 L case volume provides internal oil space for lubrication.
The pump permits 2600 rpm at full displacement to protect internal surfaces, and with reduced displacement the allowable speed rises to 3100 rpm for faster cycling at lower flow. Under nmax conditions the output reaches 117 L/min, giving headroom for peak machine demand. Power requirement climbs to 55 kW at nmax and 280 bar, so the drive and cooling system must handle the higher load. Shaft torque increases to 200 Nm at 280 bar, influencing coupling and gear selection. The load-sensing differential pressure of 14 bar keeps displacement just above demand, improving efficiency at partial load. Together these limits and control parameters permit stable flow regulation and pressure matching, making the unit suitable for automation that needs rapid speed changes and energy savings.
Technical Specifications
Case Volume
1.0 L
Displacement
45 cm³/rev
Flow (1800 Rpm)
81 L/min
Ls Differential Pressure (dfr1)
14 bar
Max Flow (nmax)
117 L/min
Max Speed (reduced Vg)
3100 rpm
Max Speed (vg Max)
2600 rpm
Moment Of Inertia
0.0033 kg·m²
Nominal Pressure
280 bar
Peak Pressure
350 bar
Power (1800 Rpm, 280 Bar)
38 kW
Power (nmax, 280 Bar)
55 kW
Pressure Control Standard Setting
280 bar
Torque (100 Bar)
72 Nm
Torque (280 Bar)
200 Nm
Weight (without Fluid)
21 kg
1620 Old Apex Road
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