Rotational Speed of Actuators/Pump Capacity Required

For hydraulic operation the time necessary for the actuator to make its travel arc can be figured with reasonable accuracy.

Where:
Arc=amount of rotation required (in degrees).
t=time, in seconds, for the actuator to make its arc of rotation.
Av=Angular velocity, in degrees per minute, for the actuator to make its arc of rotation.
Da=displacement, in cubic inches per radian, of the actuator.
GPM=gallons per minute required to rotate the actuator the specified arc in the specified time.



Example:
Calculate the time necessary to rotate an actuator 100°, that displaces 3.78 cubic inches per radian, with a five gallon per minute fluid supply.