
Rated Pressure: The rated pressure of these pumps is generally in the range of 320 - 400 bar (32 - 40 MPa). This pressure rating is crucial to effectively power the various hydraulic actuators in these large excavators, ensuring smooth and efficient operation of the working equipment. Higher pressure is required to handle the heavy loads and complex movements associated with these excavators during tasks such as digging in hard soil or moving large rocks.
Maximum Pressure: The maximum pressure that the pumps can withstand for short periods is usually higher than the rated pressure, often reaching up to 450 bar (45 MPa) or more. This extra pressure capacity allows the pumps to handle sudden high-load situations that may occur during heavy-duty excavation tasks. For example, when the bucket encounters an unexpectedly large obstacle or when operating in extremely challenging terrains.