The gas strut (or lift-o-mat damper) supports and guides the opening of heavy lids and doors, stopping them from slamming shut or staying stuck halfway open.

Force in Newtons: the 1000-1500N range is the most powerful in the line-up, suited to large, heavy lids such as bigger vacuum chamber covers. For lighter loads see 100-199N or 0-99N.

How to choose the right replacement: besides the force in Newtons, what matters is the stroke and the bore diameter at the mounting brackets.

For the other gas struts, go back to Gas Struts.

Frequently asked questions

Is a 1000-1500N strut fine for a light lid?
No: an oversized strut makes the lid snap upward instead of guiding it, which is a risk to the user.

How do I know how many Newtons I need?
The force is usually printed on the body of the original strut; alternatively it must be calculated from the weight and geometry of the lid.