Bosch Rexroth | AA4VG125EP4DM132L-NTF52F071DH-S
AA4VG125EP4DM1/32L-NTF52F071DH-S
Request a Quote
Call For Quote
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The AA4VG125EP4DM1/32L-NTF52F071DH-S variable pump belongs to the AA4VG Variable Pumps series from Bosch Rexroth and supplies adjustable hydraulic power in closed-loop circuits. A displacement of 125 cm³ per revolution sets the basic delivery per shaft rotation, while a nominal speed of 2850 rpm fixes the reference operating point for standard duty cycles. At that condition the unit provides a nominal flow of 356 l/min to actuators and holds a nominal pressure limit of 400 bar for typical system loads. When running at this pressure the shaft must transmit 238 kW, and the output torque reaches 796 Nm to match heavy machine requirements. The rotary group inertia is 0.0232 kg·m², which influences acceleration during speed changes. For brief peaks the shaft can accelerate to a maximum intermittent speed of 3450 rpm, ensuring reserve capacity without overstressing rotating parts.
The maximum working pressure capability rises to 450 bar to cover transient overloads, yet inlet conditions are limited to 5 bar absolute so suction lines must stay within that range. A pressure ramp rate of 9000 bar/s allows fast control transitions without cavitation. Electronic regulation is fed by a 24 V control supply, and the servo mechanism requires at least 20 bar above case pressure to move the swashplate. An internal boost pump displaces 28.3 cm³ per revolution to charge the main circuit and sustains 25 bar nominal boost pressure for bearing lubrication and pilot flow. The casing holds 2.0 l of hydraulic fluid, providing a thermal buffer and oil reserve for the rotating assembly. Combined, these parameters support precise and rapid power delivery in mobile or industrial hydraulic drives.
Technical Specifications
Boost Pump Displacement
28.3 cm3/rev
Boost Pump Nominal Pressure
25 bar
Case Volume
2.0 l
Control Supply Voltage
24 V
Displacement
125 cm3/rev
Max Inlet Pressure
5 bar abs
Max Pressure
450 bar
Max Pressure Ramp Rate
9000 bar/s
Max Speed (intermittent)
3450 rpm
Min Control Pressure (ep)
20 bar above case
Nominal Flow
356 l/min
Nominal Pressure
400 bar
Nominal Speed
2850 rpm
Power At 400 Bar
238 kW
Rotary Group Inertia
0.0232 kg·m²
Torque At 400 Bar
796 Nm
1620 Old Apex Road
Shipping & Payment Options
