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jcjr
professor emeritus
Reged: 01/06/08
Posts: 563
Loc: TN, USA
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Re: What kind of compressed air?
06/27/08 01:00 AM
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I have no opinion re advisability of compressed air for this purpose. Re sand-blasting a mirror, one could reduce the pressure for a first pass, to take off the light grit before cranking it up...
Knowing very little of air compressors, I have a medium-sized 'Husky' home depot oil-less pancake compressor that's been working fine for small air tools and blowing stuff off. The main issue is that it is very loud.
With an air cleaner on it, the output seems pretty dry and oil-free.
Then I got a Harbor Freight small oil-using dual-tank compressor for a friend's Christmas present. Similar to the small Dewalt dual-tank jobbies, costed less than my Husky. A little over $100.
The immediately noticeable difference with the oiled compressor is that it is very quiet. It doesn't get on your nerves when it switches on. The oiled compressor chugs along slow-steady and quiet, getting the job done. Wheras the oil-less compressor sounds like a hot-rod winding out with the pedal-floored.
Assuming air cleaners work as advertised, wish I'd got an oiled compressor rather than the oilless model. Just watching the oiled model pumping slow steady and quiet, I'm betting my friend's oiled compressor will last longer than my airless too. Seems to be running much farther below the 'red line'.
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