buying a new air compressor
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Okay I need to buy a new air compressor since my old piston compressor is dead and my back up compressor isnt strong enough. any ideas on which brand to go with based on experience and maybe a good online source. i really want to upgrade to a rotary screw while im at it since all the piston compressors today look like low quality. thanks 😉
checkout http://www.eatoncompressor.com
another thing if you do want to go with a new screw compressor its best to spend the money and get one with a freq drive (Variable Frequency Drive) this is what we use at work it ramps up when needed and slows way down to conserve power on off peaks of use (our compressor runs 24-7 and is 200hp so this is a significant savings on electricity)
[quote=”Wydir” post=24287]checkout http://www.eatoncompressor.com[/quote%5D
my back up compressor has an eaton pump on it and its pathetic. its the 2nd eaton pump ive put on it. the first one went bad after a year so i got it replaced under warrenty and the second one sounds bad and its only been 5 months
[IMG]http://i288.photobucket.com/albums/ll186/paintbyding/MVC-166S.jpg[/IMG]
Wow I’m sorry to here that about you compressor but dont they have a 5year warranty?
I’d be hot and calling people if I were you
The compressors we use at work are Sullair and Qunicy you can check them out.
Our new compressor was $264,000 its a sullair 200hp 2stage variable speed rotary screw puts out 1000cfm @125psicheck this one out http://www.sullair.com/corp/details/0,,CLI1_DIV61_ETI5942,00.html
pics of our new comp below
[IMG]http://i219.photobucket.com/albums/cc277/Dwydir/IMG00086-20100919-1449.jpg[/IMG]
[IMG]http://i219.photobucket.com/albums/cc277/Dwydir/IMG00137-20101006-1829.jpg[/IMG]yea 5 year warrenty, i called them let them hear the first one over the phone, they didnt even want it back, they just sent the new one, second one sounds like the first one when it died but it actually has compression. i change the oil often like every month too
http://www.industrialgold.com/
http://www.saylor-beall.com/home.php
http://www.napaaircompressors.com/piston-simplex.html
I’d buy one off the floor at Napa here if my Eaton bit the dust.
hey bloverby it looks like all the compressors you linked to all have the same pump as the eaton compressors from the pictures.
the only thing different that I see are the electronics and where the air cooler is placed oh and the outlet is higher on the tank
its a shame that so many manufactures use the same pump in different configurations but such is life huh
In my experience there is a distinct line between the DIYers home compressor lines, and industrial units. Look at a name like IR and you’ll see a jump in price for units that have much beefier *looking* pumps on them. The motors on the real deal units are rated in actual HP, not ‘peak power’. My old unit was from high school, a ghetto unit from napa as well, and it said ‘7 hp peak’ right on it – but it only pulled like 16 amps…… that’s a 3hp pump.
I bought a 7.5hp industrial unit from NAPA, and I am thrilled with it. They run for many years, and are totally rebuildable. Schrader Bridgeport is the manufacturer, and they are much beefier than IR for the same price. I bought it at the suggestion of a number of mechanics I know – they all said it was a great bang for the buck.
Quincy makes good stuff, but even more money. Mine was $2400, and it’s more than enough air for a small paint shop. Big shops really should have a screw.
I considered an Eaton, but the reviews are just too mixed for me….. I’ve heard a lot of good, and a lot of bad.
Sorry but 16 amps multiplied by 240 volts=3840 watts divided by 746 watts per hp =5 HP not 3 sorry for opening my mouth
:whistle:
:agree your math is right, but if you think you get 240v at the wall, you’ve never metered it. And the plate on the motor said 16 amps, not the meter. The Fluke says it was a 3.1 hp motor. :cheers
thanks guys for your input but i got a couple questions for ya, i found a 10hp speedaire compressor, 120 gallon, piston pump and it says it runs at low rpm only 700 or close to that. i couldn’t find much user reviews on a speedaire so does anyone have experience with one? finally, the rpm sounds too low, does that mean its not gonna fill the tank as fast? thanks again
looks like they are made for Grainger so any parts if needed would be easily obtained.
The speed of the pump really doesnt mean it will fill slower as the HP is greater so the Pistons are much bigger movin that much more air , I have heard of the speedaire but I have no experience with them.
motor speed is 700 rpm, pump would go as fast as the motor turns it so idk. i also looked at some other compressors and motor speed is nearly twice that but the pump was the cheap chinese type. the better pumps have slower speed motors turning them.
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