Bosch Rexroth | AZPF-21-025RXB07MB-SO294
AZPF-21-025RXB07MB SO294
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The AZPF-21-025RXB07MB SO294 model belongs to the AZPF External High Performance Gear Pumps series from Bosch Rexroth and is applied in hydraulic automation circuits where fixed displacement flow is required. Its displacement is 25 cm³ per revolution, so each shaft rotation delivers a predictable volume to actuators. The unit supports continuous service at 195 bar, while 225 bar is allowed for intermittent duty and brief pressure peaks can reach 265 bar without damage. A maximum suction port absolute pressure of 3 bar prevents aeration and cavitation at the inlet. With a weight of 4.4 kg, the pump may be mounted directly on compact power packs or machine frames without additional lifting equipment.
For speed related parameters, the pump can run up to 3000 rpm at the rated pressure P2, giving designers flexibility for higher flow rates, whereas minimum operating limits depend on system load: 500 rpm is acceptable below 100 bar, 800 rpm between 100 and 180 bar, and 1000 rpm from 180 bar up to P2. When the fluid viscosity is 25 mm²/s at P2, the minimum speed requirement returns to 500 rpm. Cold start conditions permit viscosities as high as 2000 mm²/s so the circuit can begin working with chilled oil. Seal materials define thermal capability; versions with FKM tolerate fluid temperatures to 110 °C, while NBR seals limit the medium to 80 °C. These limits allow the pump to maintain flow stability across diverse hydraulic installations.
Technical Specifications
Displacement
25 cm³/rev
Max Continuous Pressure
195 bar
Max Fluid Temperature (fkm)
110 °C
Max Fluid Temperature (nbr)
80 °C
Max Intermittent Pressure
225 bar
Max Pressure Peaks
265 bar
Max Speed At P2
3000 rpm
Max Viscosity For Cold Start
2000 mm²/s
Min Speed (≤100 Bar)
500 rpm
Min Speed (100–180 Bar)
800 rpm
Min Speed (180 Bar To P2)
1000 rpm
Min Speed (ν=25 Mm²/s, At P2)
500 rpm
Suction Port Pressure (abs.) Max
3 bar
Weight
4.4 kg
1620 Old Apex Road
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