Anyone know of an electric, pneumatic, or hydraulic floor jack?

I believe air bags can flatten out almost to the end plates as I recall from presses. I'd be careful with placement so the bag lifts in the center as opposed to the outer edge.
The bags on this press have hardened points threaded into the loose side end plates. They bite into the plate they control to keep the bags from wandering and bubbling out the sides. These lower bags will flatten even more to allow the whole die set slide out.......