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Setting up air compressor


I just got a Jun-air compressor off craigslist and have a question
on setting it up.

First off I am changing the oil using the proper type.

Question - Does the compressor need any special ventilation and does
it emit fumes?

Thanks for any help.

Note From Ganoksin Staff:
Looking for an air compressor for your jewelry projects? We recommend:

Hello Margret,

set it where it is not going to be in the way. I have mine set under
my engraving bench. Change the oil regularly and use synthetic oil.
Mine is going on 20 years, have no complaints.

Have a fantastic day!
Hans Allwicher

Hi Margaret:

I’ve got a Jun-Air as well. I picked mine up from a JA rebuild
technician who was cleaning out his closet, and I got a chance to
pick his brains during the chatting.

So, (A) it is incredibly important that you use the proper JA oil.
You can destroy the pump otherwise. You also need to install a
coalescing oil filter into the airline right after the tank, so that
all the output flows through it. ($50 or so via Grainger. If you
can’t find one, I can pull the part number off mine, but it’s hard
to get to immediately.) That strips the oil out of the compressed
air. (critical if you’re using a gravermach or similar.) It may
already have one. Check to see what’s on there though, as there are
non- coalescing water traps that look similar, and don’t grab the
oil, just the water. Gravermach’s will notice and care.

The pumps themselves are stunningly quiet. You’ll love it. It doesn’t
‘need’ any special ventilation other than open airflow, but I keep a
pair of small muffin fans blowing on mine if I’m using it for a lot
of engraving. (Muffin fans=$10. New compressor if I cook this one?
$2000. Muffin fans it is…) Muffin fans are those little square fans
that one typically sees in the backs of computers. They’re not hard
to rig up, and they’re quiet.

I’ve never noticed mine emitting any fumes or grease. Mostly, it
just sits there and putters.

Brian Meek.

Note From Ganoksin Staff:
Looking for an air compressor for your jewelry projects? We recommend: