Thread: air compressor
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02-04-2008 09:28 AM #10
Sounds like a normal, small, oil less compressor..........better than no compressor at all. Probably a lot of us here started with a small one like that. Just a couple more comments. Given that you'll likely be in constant run mode if you're doing any amount of work you'll be condensing a lot of water in the tank (depending on relative humidity in your area). So be prepared to drain it at least once a day, or more. Then get a water separator assembly, mount it as far from the tank as practical, and then back it up with a desicant filter at the tool end of the hose, especially if you're painting.
Now for the general comment that seems to be needed every time we talk compressors. For the kind of work we do, volume output of a compressor is more important than max air pressure. If you look at the specs on the tools you intend to use (as briefly mentioned above) you'll find most have operating pressures less than 100psi. If you've got some blasting equipment you might find line pressure requirements exceeding 125psi, but not too many "hobbyists" have that kind of equipment. By contrast, the typical spray gun today (if you want to get max transfer of expensive paint) is an HVLP, the HV standing for High Volume. Not high pressure. If you're going to be doing a lot of body work you'll be driving a DA sander quite a bit, could be comparable to cutting the end of hose off and letting the air flow. At the other end, an air ratchet is usually intermittent use, so doesn't tax a compressor near as much. The point is, a two stage compressor that is designed to produce 175psi isn't a bad thing, but you'd be paying for something (higher pressure) that will be of little use. If it becomes a cost/dollar value decision you'd be better trading off the extra cost for a high volume (as an example, Pops and I made that choice and got ~23cfm @ 100psi units) rather than high pressure unit. If you guys are going to be working with air tools in any significant way you'll learn this first hand as some of the rest of us have.Your Uncle Bob, Senior Geezer Curmudgeon
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