Bosch Rexroth | AA4VG56EP3D132R-NSC52F005DP
AA4VG56EP3D1/32R-NSC52F005DP
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The AA4VG56EP3D1/32R-NSC52F005DP pump is part of the AA4VG Variable Pumps series manufactured by Bosch Rexroth for hydraulic automation circuits where adjustable delivery is required. Its geometric displacement is 56 cm³ per revolution, and at the nominal speed of 3600 rpm the pump supplies 202 l/min. The design tolerates a nominal pressure of 400 bar and can be operated up to a maximum pressure of 450 bar for short periods. Installation is performed through an SAE J744 127-2 (C) mounting flange. Electronic control is powered with 12 V while allowing a ±20% voltage window; the control spool begins to shift at 400 mA and is protected by a 1.54 A current limit. Fluid enters through suction port S threaded 1 5/16-12 UN.
The minimum operating speed is 500 rpm, and intermittent duty permits rotation up to 4500 rpm to match fast-cycling machines. When the system pressure reaches 400 bar the shaft transmits 357 Nm of torque and draws 134 kW of mechanical power. Working ports A and B are 3/4 in connections conforming to SAE J518, supporting balanced flow to actuators. These parameters define the usable speed range, power demand, and interface sizes necessary for integrating the pump into closed-loop or open-loop hydraulic drives.
Technical Specifications
Control Voltage
12 V (+/-20%)
Current Limit
1.54 A
Flow At Nnom, Vg Max
202 l/min
Geometric Displacement
56 cm3/rev
Intermittent Max Speed
4500 rpm
Maximum Pressure
450 bar
Minimum Speed
500 rpm
Mounting Flange
SAE J744 127-2 (C)
Nominal Pressure
400 bar
Nominal Speed
3600 rpm
Power At 400 Bar
134 kW
Start Of Control Current
400 mA
Suction Port S
1 5/16-12 UN
Torque At 400 Bar
357 Nm
Working Port A/b
3/4 in (SAE J518)
1620 Old Apex Road
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