What is a Linear Actuator?
A linear actuator is a device that converts the rotational motion of an AC or DC motor into linear motion – that is, it will provide both push and pull movements.
By pushing and pulling it is possible to lift, drop, slide, adjust, tilt, push or pull objects, simply by pushing a button.
Additionally, Linear Actuators provide a safe and clean movement with accurate motion control that you, the operator have full control over. They are energy efficient and have a long lifetime with little or no maintenance.
Read our Blog post Linear Actuators 101 to read more
How do linear actuators work?
The Linear motion is created by using a screw or Lead-screw as they are more correctly called. The screw turns either clockwise or counter-clock-wise and this causes the shaft, which is basically a nut on the screw to move up and down the screw as the screw turns. This is what creates the linear motion.
The motors used are either AC or DC motors, most however run on 12v dc, but other voltages are also optional. To make the Actuator go the other way you simple reverse the wires from the Actuator (reverse polarity) from the battery or power supply. This is typically done through a switch that automatically reverses the polarity to the motor for you.
Firgelli created a Technical Blog post you can visit here. How do linear actuators work?
What are the different types of Linear Actuators?
There are many different types sizes and styles of Linear Actuators. the Most common type is a Rod style where a Rod shaft slides in and out of the body. These create the linear motion required to be called a Linear Actuator. Other types include, Track Actuators, Column Actuators, and within each type there will be different control methods. For more detail read our Blog posts titled Types of Electric Linear Actuators