[ChrisH]

Since we have limited air storage, even a stroke of 1' is pushing it in terms of air consumption. You only have so much volume to work with.

For a 1' stroke 2"diameter cylinder, you would burn through your stored air pretty much on the first use. After that system pressure would drop below 60psi, the next use would be below 30psi and the valves will stop working.

Yes, you do have the onboard compressor but it takes time and power to recharge the system. Not to mention that fact it weighs about 9lbs.

For linear motion greater than a few inches we tend to use cable. It's amazing what you can do with it when you know how. But you'll have to figure that out for yourself.