I have a twin cylinder single stage Quincy on a 60 gallon tank and it handles my sandblasting cabinet just fine. The compressor has a pressurized oiling system and unloaders that don't allow the compressor to start making air until it has oil pressure. It's been my work horse for over 25 years.
I made my air drier out of 3/4" copper pipe running it up and down the wall behind the compressor (3-up and 3-down) with a 12" dirt leg and valve at the bottom of each down leg. The discharge from the dirt legs are all tee together and exit the building side wall. When using the compressor I pop each dirt leg valve open for a few seconds to drain the water they have collected. It's amazing how much water they pull from the air.
If I had to do it again I'd use copper fin tube pipe from base board heat to make the drier as I believe it would do an even better job cooling the air and condensing the water out.
Mike B
