In this post, we’ll discuss the advantages and disadvantages of two of the most popular types of linear actuators – hydraulic and electric – to help you find the perfect device for the job.
Monday, October 21, 2019
Hydraulic vs electric linear actuators: which is best?
In this post, we’ll discuss the advantages and disadvantages of two of the most popular types of linear actuators – hydraulic and electric – to help you find the perfect device for the job.
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Actuation of motion can be a confusing and complicated process that can have dozens of factors. When it comes to selecting one in a theatrical application, it makes far more sense to go the electrical route since not only is much easier to customize and integrate into various control systems but also easier to maintain. Nevertheless, there can certainly be uses in our business for hydraulics, given their power density. This is why we still find them on high power, low speed applications such as a shear/punch or lifts. Another potential reason to choose a hydraulic actuator can come down to modes of failure. For example, if the motor were to fail on a scissor lift, someone could still easily be lowered by manually opening valves. On a worm-drive linear actuator, you don't have this luxury. Once again, it comes down to applications and doing the appropriate analysis to make the safest and smartest decision (Failure Mode and Effects Analysis).
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