Gas Springs are available in the following sizes:

Force increases on a linear scale as the Gas Spring is compressed.
6 - 15 - Load Ratio 1.2, M6 *1.0 thread - for door weights of 1 - 10 kg.
(6 - 15 refers to 6mm rod and 15mm tube dia)
8 - 18 - Load Ratio 1.3, M6 *1.0 thread - for door weights of 6 - 35 kg
10 - 23 - Load Ratio 1.3, M8 *1.25 thread - for door weights of 25 - 140 kg
14 - 28 - Load Ratio 1.5, M10 x 1.5 thread - for door weights of 100 - 350 kg
(1kg = 9.8 N - 1lb = 4.45 N)

Calculating loads using load ratios:

The ration between initial load and final load is given in the table above.
Example: For a gas spring with an 8mm diameter rod and an intial load of 100N, the final load will be (100N x 1.3 ) = 130N
(Final Load - intial Load x Load Ratio)
(1kg = 9.8 N - 1b = 4.45 N)
A page to assist you in selecting the correct Spring is included at the end of the site.
If you are unsure of the spring to use, please contact us.