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Model Identification: The Ex120 – 1 Hydraulic Pump is designed for a specific excavator model, likely the EX120 – 1. It plays a vital role in the hydraulic system of the excavator, providing the necessary hydraulic power to operate various components such as the boom, arm, and bucket.
Leistungsspezifikationen
Durchflussrate
Variable Flow: The pump usually offers a variable flow rate to meet different operational demands of the excavator. The minimum flow rate can be adjusted to a relatively low value, perhaps around 0 – 20 Liter pro Minute (L/min), depending on the control settings. The maximum flow rate is typically in the range of 100 – 200 L/min. This allows for precise control of the speed and force of the hydraulic actuators.
Flow Control Precision: The pump is engineered to provide accurate flow rate control. The adjustment mechanism enables fine – tuning of the flow, with an accuracy of usually within a few percent of the set value. This precision is crucial for delicate operations such as precise digging or leveling.
Pressure Ratings
Rated Pressure: It has a rated working pressure, which is generally in the range of 200 – 300 bars (2900 – 4350 psi). This pressure level is sufficient to power the hydraulic cylinders and motors that drive the excavator's working parts, enabling them to exert the required force.
Peak Pressure Tolerance: In addition to the rated pressure, the pump can withstand peak pressures for short – term surges. The peak pressure is typically higher than the rated pressure and may be around 350 – 400 bars (5075 – 5800 psi), depending on the pump's design and construction.
Speed Specifications
Operating Speed Range: The hydraulic pump has an operating speed range measured in revolutions per minute (Drehzahl). The minimum operating speed is usually around 600 – 1000 rpm to ensure proper lubrication and smooth operation of the internal components. The maximum speed can reach up to 3000 – 3500 Drehzahl, depending on the specific requirements of the hydraulic system and the excavator's engine power.
