Designed to replace “H” block slides in confined spaces, these units use a splined oversized shaft traveling in ball bearing shoes to provide high torsion and high side load characteristics.
The 10 mm and 16 mm bore designs are depicted on the left. The 25 mm, 32 mm, 50 mm and 80 mm bores incorporate the design on the right.

I’ve included the weight chart above so that you may see the stroke lengths associated with each of these bore sizes. These actuators come in a fixed stroke length as indicated in the weight chart. Larger bore units use the internals of the DNC ISO family of cylinders. So, spare parts are easy to get when you need them.
If you need an intermediate stroke length you can get a double rod end version and place a stop collar on the rod shaft.