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Scroll Air Compressor- Experience?12/17
I don't have a great place to put an air compressor. Even with a cabinet around it, the thunk-thunk-thunk keeps me from thinking straight.
I just saw a scroll compressor on eBay for a reasonable price, and it claims 57 DbA and pretty decent efficiency.
Wikipedia says they are great except if they take in foreign bodies, which to me reads sanding dust. It could outbalance the rotating parts or cause interference, either of which could lead to trouble.
The compressors are known for low maintenance, oilless operation, and their quietness.
Sounds like a winner, except for price, which in this case is higher but reasonable. Does anyone have experience with one?
I would not go any other way. What HP are you considering, what brand? They are not silent but better than a piston compressor.
The machine is a dual 5 hp Atlas Copco. One of the compressors is seized, but the other works. I'd have the option later of fixing/replacing the busted one.
That might be a bit scant for my needs, but I've got a big tank and a lot of installed piping to buffer it. And I can always take a coffee break ;?)
Do you have to do anything special to filter the intake? Anything more to maintenance than changing filters & checking belt tightness?
I would be concerned as to how the non seized one was maintained if they are a pair.
I would also never buy a compressor that was not beyond my needs. A random orbit sander starved for air leaves swirl marks no matter what you do.
I bought a 30hp from an IRS auction for $5k. It has been a work horse. Although you change the oil less frequently the oil is very expensive.
Sounds risky to me & 5 hp isn't enough to run even a very small shop on. It takes most of what a 5 hp compressor puts out to run a random orbit sander. Being oil-less is an advantage. The problem with reciprocating compressors is their limited duty cycle. We are running a 25 hp oil flooded screw. They have 100% duty cycles. But as Bill said the oil, filters, & separators are expensive but only need to be changed every 6000 hours, if you are running synthetic.