Hydraulic Ram

[Greg]

Originally Posted by frizzen

The machine you referenced is called a 'Jackscrew mechanism'. You can use all-thread and nuts, or the nicer version uses Acme rod with Acme nuts.

Also a forum sponsor Actuonix makes several plug and play linear actuators, that can be run as either a linear servo that self centers or an actuator that holds position. It would be cheaper than hydro. They even have built in micro switches at travel limit.

Hi frizzen, thank you :-)
That's handy to know as I did look into some linear actuators some time back but at the time couldn't source one the right spec...I'll have to have a look at those if the hydraulic method doesn't work out.
All the best,
Greg