[Shop-talk] More compressor questions

[John T. Blair]

Thanks again for all the replies to my original post about my compressor motor
not working.

With all this going on, I have been doing some thinking about having 
to buy a new
compressor if I can't get this motor running.  That said, this 
compressor appears
to come with a 3hp, 4hp, and 5hp motor.  I have the 5hp.  I know that when it
comes to getting a new compressor, bigger is better, to the extent of 
your budget.

1. What is the advantage of the different hp motors.  I know the big advantage
for the 5hp is it runs on 220V.  But how does the hp affect the compressor.
Based on the info in the manual, it appears that all 3 versions have the same
SCFM specs.

My current compressor is an oil lubricated one.

2. I see oil-less compressors that supposedly have fantastic specs 
for air supply
that are so much cheaper than oil lubed versions.  Any thoughts?

3.  Any body have an oil-less compressor?  How do you like it?  I was 
reading an
article that was talking about how the oil-less versions have come a 
long ways.
They were saying that the biggest advantage for the oil liubes was for high air
demand over a long time like in a commercial shop.  But my dad's compressor,
a 4hp 220V 20 gal unit and my 5hp 220V 30 gal rig were all oil 
lubed.  We got dad's
compressor back in the 60s and it was still running when he passed in 2015.  I
bought mine back about '90.  So I lean toward them.  But is that realistic?

John



John T. Blair  WA4OHZ     email:  jblair1948 at cox.net
Va. Beach, Va                  Phone:  (757) 495-8229

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