Model Series: The A4FO series is a line of fixed axial piston pumps by Rexroth, recognized for its stable performance and high reliability in the hydraulic field.
Application: It is widely used in industrial machinery, construction equipment, agricultural machinery and other fields that require a stable hydraulic power supply. For example, it can be used in metal processing machine tools, forklifts, and tractors.
Performance Specifications
Displacement: The displacement of the A4FO series usually ranges from 25 cm³/rev to 100 cm³/rev. Different models within the series offer specific displacement values to meet various flow requirements in hydraulic systems.
Pressure Ratings
Rated Pressure: The rated pressure is generally around 280 bar. This is the pressure at which the pump can continuously operate under normal working conditions to provide the required flow.
Maximum Pressure: The maximum pressure that the pump can withstand reaches up to 350 bar for a short time. This allows the pump to handle sudden pressure surges and high - load situations in the hydraulic system.
Speed
Rated Speed: The rated speed of the A4FO series pumps is typically between 1500 rpm and 2000 rpm. Operating at the rated speed ensures optimal performance in terms of flow and pressure output.
Maximum Speed: The maximum allowable speed is around 2200 rpm. Exceeding this speed may cause increased wear and reduced pump lifespan.
Flow Rate: The flow rate of the A4FO pump depends on its displacement and operating speed. It can be calculated by the formula: Flow rate (L/min) = Displacement (cm³/rev) × Speed (rpm) / 1000. In practical applications, due to internal leakage and other factors, the actual flow rate is about 90% - 95% of the theoretical value.
