Out where I used to work, they use air pallets to move things, heavy
things. One of the possible problems is having a smooth level floor.
At work they spent a fair bit to get a level floor. Nothing like
having 60 tons wanting to go to the low spot. The other thing that I
never have understood is they use fairly high pressure air which ends
up being not very high pressure under the pallet. I think the reason
is so the hoses are not any bigger than they are. If I were designing
the system, I would look at using a ring compressor mounted on the
pallet.

Dan