bill50cal
Member
you CAN push a GOOD single stage higher than 125 PSI BUT it looses a lot of effective pumping at the higher PSI V a 2 stage pump, as to the CHEAP oil less units they are VERY noisy along with inefficient, just look at how long they run V a GOOD single stage. have you had one apart, I don't see how you could build it any cheaper and it still work. IMHO the only thing they are good for is a small pancake carry around unit for an air nailer and pumping up tire's:laughing:
Bill, I'd agree that a 2-stage would be preferable, but my current 30 gallon "Industrial Air by Coleman Powermate" is a single stage vertical 2-cylinder that kicks on at 125 and off between 150-155 psi. It's used a great deal and sometimes run continuously for pretty long periods of time and has never given me trouble at all. Of course, it only turns 6 years old this month.