Alan,
You might want to take a look at Harbor Freight's larger offerings. I just purchased this one, on sale for $825 (unfortunately HF no longer allows the use of "XX% Off" coupons on compressors

):
5 HP, 60 Gallon, 165 PSI Two Stage Air Compressor
13.5 CFM @ 165 PSI, 15.8 CFM @ 90 PSI, 16.4 CFM @ 40 PSI
When researching these I first started by reading the 15 or so reviews on the Harbor Freight website - as I recall it, all were positive, including a couple that had been using the compressor daily for some time, or using it commercially. I then Googled the HF model no. (93274) and started reading write-ups on other various forums (Home Shop Machinist, Garage Forum maybe ?) .... long story short: I don't think I ever found a negative one .... or even much in the way of a real compliant - but I did find numerous purchasers that were pleased.
Contrast that with my experience reading up on the IR units (I found numerous complaints about problems/failures .... when the units were
brand new) .... once upon a time, Ingersoll-Rand was a very good name .... and may well still be on their larger, heavy-duty commercial products ($$$)
But, as the saying goes ....
they (apparently) ain't what the used to be .....
The HF unit has a "Made in USA" ASME tank, an AO Smith Motor (Hecho in Mexico I believe) which does not require a mag starter (the IR may), and the compressor itself is a high quality unit made in Italy.
The company that produces these for Harbor Freight is ABAC/American IMC, a large, global industrial air compressor company:
ABAC
They apparently also make identical units which are sold industrially under the "Bel-Aire" label (and, apparently, a couple of other brands):
Bel-Aire Compressors
Alan, I know there's been a lot of talk about anchoring a compressor to the concrete and if that's what you want to do, that's fine, but there's just no way I'd do that.
Nor would I, without using isolation/vibration dampening mounts - and even then don't crank it down solid.
In fact, in the instruction manual for my Harbor Freight unit, they say specifically
not to bolt it down solid - as it will cause metal to crack/fracture over time.
I picked up 4 heavy-duty vibration-damping leveling mounts from McMaster-Carr (Item No 60855K52 @ $7.24 ea.), rated at 80 lbs each (the shipping weight for the compressor is listed @ 260 lbs):
Heavy Duty Vibration-Damping Leveling Mounts
These seem to be working good so far, no evidence that it's walking around and I'm fairly sure it makes it quieter
All vertical tank compressors tend to be top heavy - I may chain this unit to the wall ... just to ensure it doesn't somehow get tipped over.
The only thing I can see on the compressor that is clearly of questionable quality is the pressure gauge. A new liquid-filled 0-200 psi pressure gauge with a stainless case ($23) from McMaster-Carr solved that.
I also installed a el-cheapo Husky air line filter and a 0-125 psi regulator (about $50) on it, from Home Depot, until it goes over in the polebarn .... and then I'll stick a very nice older Schrader filter/regulator and lubricator on it that's currently on my little portable up in the shed.
But whatever you do, you want to be sure you leave room to easily get to the condensation drain frequently.
As a cheap solution I ordered this compressor drain from Grainger:
CDI CONTROL DEVICES - Pneumatic Drain Valve
It's a simple poppet valve with a 5' steel cable with a loop on the end that you pull to drain. For the $8.18 that it cost - plus the cost of a 1/4 NPT 90 degree street elbow to mount it in the bottom of the tank - it's worth it to my back and legs not to have to bend over. :thumbsup:
Once I get the compressor over to the barn and all plumbed in I may install a Wilkerson Pneumatic Auto Drain (around $50 or so at McMaster) .... or not ....