Linear actuators are used to convert rotational motion into a linear motion, with a push and pull effect. They can help with all sorts of technology and many industries, including opening automatic doors, car seats moving forward and backward, or open and close a computer disk drive.
The linear actuator uses an energy source to operate the mechanism that's integrated into a system. This results in a mechanical motion which enables it to perform many functions. The actuator converts the energy into a linear motion to move along a straight line.
The amount of energy used by a linear actuator is low, compared to other operating mechanisms. There are several types of energy sources for actuators including electrical, hydraulic, manual, pneumatic pressure, and even thermal or magnetic energy.