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The AA2FM80/61W-VSD510 motor belongs to the A2FM Fixed Motors series from Bosch Rexroth and converts hydraulic pressure into controlled rotary motion for industrial automation. Its displacement is 80.4 cm³ per revolution, defining how much fluid is exchanged each shaft turn. A nominal operating pressure of 400 bar supports continuous duty, and at this level the shaft supplies 512 Nm of torque for heavy load drives. Continuous speed reaches 4500 rpm, while uniform motion can be maintained down to 50 rpm for low-speed tasks. The unit can turn in either direction, allowing flow reversal without changing plumbing. An ISO 3019-2 four-hole flange simplifies alignment with standard housings, and FKM seals resist common hydraulic oils and higher temperatures.
The motor tolerates intermittent peaks up to 450 bar and a combined system pressure of 700 bar to absorb short load spikes. Rated inlet flow is 362 l/min at nominal speed, supplying enough oil for cooling and lubrication. A continuous 2 bar case pressure differential limits internal leakage, while the 0.55 l case volume retains oil for heat dissipation during transients. Intermittent speed capability rises to 5000 rpm, and the rotor can accept angular acceleration up to 6000 rad/s², enabling rapid start-stop cycles. Rotary stiffness of 8.73 kNm/rad minimizes torsional deflection so position sensors remain accurate during high dynamic operation.
Case Pressure Diff (continuous)
2 bar
Case Volume
0.55 l
Direction Of Rotation
Bidirectional
Displacement
80.4 cm³/rev
Inlet Flow (at Nnom)
362 l/min
Max Angular Acceleration
6000 rad/s²
Max Speed (continuous)
4500 rpm
Max Speed (intermittent)
5000 rpm
Maximum Pressure
450 bar
Min Speed For Uniform Motion
50 rpm
Mounting Flange
ISO 3019-2 (4-hole)
Nominal Pressure
400 bar
Rotary Stiffness
8.73 kNm/rad
Seal Material
FKM
Sum Pressure (psu)
700 bar
Torque At 400 Bar
512 Nm
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