Displacement: This refers to the volume of fluid that the pump can move in a given amount of time, typically measured in cubic centimeters (cc) or liters (L) per revolution or minute.
Pressure: This refers to the maximum pressure that the pump can generate, typically measured in pounds per square inch (psi) or bars.
Flow rate: This refers to the volume of fluid that the pump can move in a given amount of time, typically measured in liters per minute (L/min) or gallons per minute (GPM).
Efficiency: This refers to the percentage of input power that is converted to hydraulic power by the pump, and can be influenced by factors such as the design of the pump and the viscosity of the hydraulic fluid.
A PTO (power take-off) box is a component that is used to transfer power from the engine of an excavator to a hydraulic pump or other auxiliary equipment. PTO boxes can vary in their design and specifications depending on the specific application and equipment involved, but common specifications that may be specified include:
Input and output shaft sizes and configurations
Maximum input and output torque and power ratings
Operating speed and direction of rotation
Lubrication and cooling requirements
