Rated Pressure: For hydraulic piston pumps applied to large-scale construction equipment such as the LiuGong CLG939E, the rated pressure is generally relatively high. The rated pressure of the K5V140DT - 9N25 is likely to be around 280 bar (28MPa) to 350 bar (35MPa), which can provide sufficient power for the hydraulic system of the equipment to drive various working devices such as digging, lifting, and steering to carry out high-intensity operations.
Maximum Pressure: The maximum pressure is usually slightly higher than the rated pressure, and it may reach 380 bar (38MPa) to 420 bar (42MPa). This is the limit pressure value that the pump can withstand in a short period. When the equipment performs some special high-load operations or encounters sudden resistance, the pump needs to withstand such high pressure in a short time.
Rotational Speed
Rated Rotational Speed: Generally, the rated rotational speed is around 1500 revolutions per minute (rpm) to 2200 rpm. At this rotational speed, the pump can work stably and output the flow rate and pressure required by the design, ensuring the normal operation of the equipment's hydraulic system.
Maximum Rotational Speed: The maximum rotational speed may reach around 2500 rpm. However, running at the maximum rotational speed for a long time may affect the service life and performance stability of the pump. It generally only reaches the maximum rotational speed in special situations such as when the equipment needs to move quickly in a short time.
