air compressor, do these specs sound right?

[msgross]

seems like a lot of CFM for such a small guy, I need to use a die grinder, cutoff wheel and maybe a DA for short periods... thoughts? tank seems small but it's a decent price.


ChargeAir Pro Commercial Duty by DeVilbiss
GE 6.5HP 220vac Motor
12.2 SCFM @ 40PSI
10.2 SCFM @ 90PSI
Twin Cylinder, Oil Lubricated Compressor
Built in Regulator w/ Guages
20Gal tank
Comes with the hose in the picture
This is a great unit, not some oilless cheapy
$175 OBO

[fastwillie 696969]

should be good for small air tools
i had one for years wish i never sold it
but i like the one i got now upright tank

[Lugnut64052]

That DeVilbiss pump does put out a lot of air for its size. I had one of those for years on a 30 gallon tank. I could shoot acoustic ceiling spray with it, and did so many times.

It's the perfect size for impact wrenches and maybe air ratchets. High-speed tools like die grinders use huge amounts of air though. That compressor will support them for short periods (like, say, half a minute or so), but then you'll be waiting around for a couple of minutes for it to pump back up. Probably doable if you're just doing some occasional weekend warrior stuff, but I wouldn't attempt to do an extensive body restoration with it.

[mbgmike]

That sounds about right.

We are working on a compressor right now that puts out 44,000 psi I wish I had that for the shop but the motor is 3 times larger than the 10 cylinder compressor

[msgross]

There is another compressor local for sale with an 80 gallon tank, he doesn't know the cfm though. He wants $250 which seems fair if it runs well...

I can get this little one for $140 but would like to run a die grinder for a little longer...

[BarryB]

If your wanting to run a die grinder you'll need a bigger tank at least. You'll run that little compressor to death trying to run a DA. I tried running a DA with one that size. I ended up with a 60 gallon, and even at that when I use my DA it runs almost constantly. I'm now working on getting an 80 gallon IR two stage compressor.
Heck My 60 gallon will be up for sale once I get the 80 gallon in its place.

[fastwillie 696969]

That compressor will support them for short periods (like, say, half a minute or so), but then you'll be waiting around for a couple of minutes for it to pump back up.

we call this beer time

[Lugnut64052]

Originally Posted by 70blowngmc

we call this beer time

Buy as much compressor as you can possibly afford. Within six months you'll be wishing you had still more air.

[msgross]

Originally Posted by Lugnut64052

Buy as much compressor as you can possibly afford. Within six months you'll be wishing you had still more air.

I hear ya there, I already ditched the first compressor... now I need to run 220v to the garage.

[Atomsplitter]

I agree with Lugnut,

I started out with a 30 gallon 2 stage and it worked fine for my impact. When I bought my floor model sandblaster it didn't cut the mustard. Most continuous use air tools need a compressor that puts out at least 15 CFM. I bought a crapped out 80 gallon oil-less and frankinsteined a 3 cylinder single stage compressor to it and now it puts out about 18.5CFM (based on pump spec.s vs speed). I can use my sandblaster all day long, it refills to the high pressure setting while i'm using it and it never runs out of air. 2 cylinder high pressure pumps are great if you need the 175 psi but I get by with a high limit setting of 125 psi. Best tool I have in my shop.

My advice is to buy the highest CFM you can afford.

[cdowns]

get bigggg tank // sanders grinders blasters all love them