[RickM]

FWIW, CH makes different grades of compressors. Their Iron Force series (or something like that) is a pretty decent machine.

Also, I've never heard of Duty Cycle being determined by the cylinder material. If going for a cast iron cylinder type unit make sure it's solid cast iron and not sleeved....or another material.

Unfortunately the motors can vary in quality and getting info can be tough. Look at the amp consumption on the motor. If two motors are rated at the same HP then the one with the higher AMP rating is likely closer to the claim. Does the motor have solid copper windings? Bushings or bearings?

Other features to look for:

- Lower running compressor. The lower the rpm requirement the better. (noise and heat)

- Pressure unloder- restarts are easier on the motor, starter and electrical system.

- Look for ceramic or SS disc valves as opposed to "reed' valves