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[[Category:Parts]]
[[Category:Hydraulic parts]]

=Introduction=
A hydraulic cylinder (also called a linear hydraulic motor) is a mechanical actuator that is used to give a unidirectional force through a unidirectional stroke. It has many applications, notably in construction equipment (engineering vehicles), manufacturing machinery, and civil engineering. 

=Challenges=

=Approaches=
* [http://www.surpluscenter.com Surplus Center]
* [http://www.tractorsupply.com Tractor Supply Company]

=References=
* [https://www.youtube.com/watch?v=NLscbeoIjAY 3D printed electric linear actuator]
* [https://en.wikipedia.org/wiki/Hydraulic_machinery Hydraulic machinery]
* [https://en.wikipedia.org/wiki/Hydraulic_cylinder Wikipedia: Hydraulic cylinder]