Can the electrical service to your garage take the load of all the
compressor hp you will need? You'd have to assume that they all could
try to start at the same time, doubling the current draw, or more!

You say "a" trailer frame. If you mean only one, then maybe you'd be
better off simply getting a big air supply tank and waiting for it to
pump up from time to time.
Since you mention that you don't have 3 phase power, you could
consider using a rotary converter to make your own 3 phase power, if you
do have significant power available.

Pete Stanaitis
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stryped wrote:

I am wanting to do some sandblasting in the future. (Like a trailer
frame). Most pressure blasters with a large nozzle take a huge amount
of air. I dont have 3 phase in my garage. Is it possible to run one
compressor and another one into one line going to the blaster?