Double acting cylinder - Area - question

[adz600]

Yes the force will increase

[Liftoff]

Yes the force will increase

That's what I was hoping to hear
The below sketch is what I had in mind, using a heavy duty spring for a fliper, pneumatics for loading the spring only so no need for buffers etc. The only issue I found was that the size of cylinder I required was not going to be strong enough to compress the spring if I used an LP setup unless I reduced the rod diameter or went up to a higher pressure.

Double acting cylinder_02.jpg