shop-talk supported in part by Fat Chance Garage
Two stage always makes more air per unit power than single stage. Two stage
will _usually_ deliver air at a higher final pressure, too. (Typically 175
psi vs. 120 or 135)
I don't know anything about the quality of either machine.
> Do you know the CFM rating of your compressor? I am thinking
> of getting a 60-gallon single-stage twin-cylinder unit from Lowe's
> for $499 that claims 13.3 SCFM at 90 lb. The motor draws 17 amps at 220 v.
> They describe it as "7 HP (Peak)", but I think HP ratings on compressors
> are pretty meaningless.
> The alternative is a Delta compressor from Sam's Club for $769. It is
> 2-stage unit, rated at 16.9 CFM at 100 lb. It is rated at 6.5 HP, whatever
> It needs a 30-amp branch circuit.
> I am planning to use it for spraying and with a blast cabinet. Do you think
> the smaller unit would be sufficient?
> Doug Braun