Smaller Pnuematics Storage Tank

[jwfoss]

Coast Pneumatics has a large number of polypropylene tanks available.
Clippard also has a selection of metal air tanks.

[GeeTwo]

You probably wouldn't want to do this for competition, but if you're trying to figure out /verify how much tank you need, you can use a (probably large) pneumatic cylinder as an air tank. If you use the top (return) side, you can use nearly the full stroke x bore of the cylinder without moving anything. You can even tweak the volume by mechanically locking the output shaft in a given location. In fact, clippard's metal tanks are just cylinders with two "bottom" ends and no piston or rod; we have several of these and used one in 2014.