[ngreen]

2 points of contact should significantly help with rotating.

The optimal pressure according to the piab site is 26 psig. This is well under the 60 psig max. The limit of 4 clippard tanks (at 120 psig) should be able to sufficiently power the vacuum device. Higher pressures are actually detrimental to the suction and it relies mostly on the air speed through the venturi type nozzle.

If a constant running compressor (vacuum generators can be air intensive) are a concern, vacuums can be constucted with KOP motors (which in a vacuum actually draw less amps).