There are not many people know about all of the inventions that we already created for the past decades. People are tends to only remember and know about the inventions which has the most valuable usage and able to make breakthrough in human work of field. However, there are also some people who are not aware that there are many inventions which are able to make their life easier. That it is why you better open your eyes and see for yourself that there might be some of the inventions which are not used effectively.
One of the useful inventions that not many people know is the Actuator. The Linear Actuator is very useful for people who do heavy jobs related to lifting some or even many object which obviously heavy and unable to be lifted by merely using human strength. This machine is able to create linear motion and also force by using the external energy source.
There are many types of Linear Actuators that you can find on the market nowadays, they are categorized based on the external energy source which being used. There is mechanical one, pneumatic, electro-mechanical, hydraulic, and piezoelectric. You find more information by reading some articles and reviews about the actuators.