Linear actuator is a device that designed to make controlled straight movements; this device commonly used for industrial machinery or peripherals for computer like CD and DVD drives or printers that need controlled and automated linear movement. This device is usually powered using electric motor, hydraulic or pneumatic cylinders to create the linear motions. The electric linear actuator uses electric motor to create the circular motion; the use of traveling nut is the most common method to create electric linear actuator. The use of small electric linear actuator can be the solution for various mechanisms for providing linear action for furniture design, mounting bracket, rocker switch or other things that need dynamic linear mechanism.
The most common electric linear actuator is using 12 volts DC electricity as the power source; this device is popular to create progressive automation devices. The smaller size, but strong enough power and simple application make electric linear actuators become popular. This device can be attached to almost any kind of material with its simple mounting system. The electric actuator only can be controlled easily for programmed automation. Several actuators can be used together for creating dynamic movements with simple control system; the use of control box can provide simultaneous control for up to 10 units or up to 4 actuators individually.