How BIG is BIG enough for an AIR COMPRESSOR

MATTSRED · 01-15-2009, 09:04 PM

How big is big enough for an air compressor..

Using impact gun occasionally & cut off tools?

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96redtoy · 01-15-2009, 09:23 PM

Go bigger then you would ever think you will need because 5 years down the road when you want to run those big high cfm tools and you are stuck with the one that worked fine for your demands then, you will be kicking your self

Also buy one that is belt driven those direct drive ones are pieces of crap and louder then hell.

86tuning · 01-15-2009, 09:37 PM

For shop duty, a 60gal or larger is preferred. It's best to get a 220v one, and hard-wire it into the garage. High-output 220v motors are cheaper than the same output 110v one, and also uses less amperage and therefore smaller gauge power wiring.

We have a 18cfm@100psi compressor, and it works great. Big enough for a repair shop with 2 or 3 bays.

**waskillywabbit** · 01-16-2009, 05:04 AM

Quote:

Originally Posted by 86tuning

For shop duty, a 60gal or larger is preferred. It's best to get a 220v one, and hard-wire it into the garage. High-output 220v motors are cheaper than the same output 110v one, and also uses less amperage and therefore smaller gauge power wiring.

We have a 18cfm@100psi compressor, and it works great. Big enough for a repair shop with 2 or 3 bays.

X2

poynter · 01-16-2009, 05:30 AM

I have a 33 gallon craftsman I got a few months ago. It does the job but its loud and it runs a lot depending on what your doing. It works with an impact and air ratchet just fine, haven't tried to paint with it yet. Just make sure you get a good hose not the crappy ones they give you.

RevNL · 01-16-2009, 11:54 AM

I also have a Craftsman 30-something gallon upright direct drive compressor. It easily handles all the garage tasks I throw at it. Grinders, drills, chisels, 1/2" impact, tires, etc. For auto-body work or something else that will use large amounts of air for hours on end, I'd recommend something much bigger. For mechanical work, it's plenty.

Down side: It is really, really, really, really loud. I don't dare turn it on late at night (when I do most of my work) because it will wake up the entire neighborhood.

tc · 01-16-2009, 03:24 PM

4CFM at 90 psi per tool OFF THE COMPRESSOR (not off the tank) you want to run. The tank size is just surge capacity - at the end of the day, you can only use what the motor compresses.

algranger · 01-16-2009, 03:45 PM

you can always get a motor or smaller compressor and hook it up to a huge tank, it will be a slow fill but wont run out every time you remove a lug nut

4Crawler · 01-16-2009, 05:01 PM

http://www.4crawler.com/4x4/CheapTri...tml#HowMuchAir

I run a 12CFM/20 gallon tank compressor for my shop. Usually keeps up with most of the air tools I have.

01-15-2009, 09:37 PM	#3 (permalink)
86tuning Registered User Join Date: Jul 2007 Location: Vancouver, BC Posts: 717	For shop duty, a 60gal or larger is preferred. It's best to get a 220v one, and hard-wire it into the garage. High-output 220v motors are cheaper than the same output 110v one, and also uses less amperage and therefore smaller gauge power wiring. We have a 18cfm@100psi compressor, and it works great. Big enough for a repair shop with 2 or 3 bays. __________________ - Brian 84 toy pickup mostly stock

01-16-2009, 11:54 AM	#6 (permalink)
RevNL Registered User Join Date: Jan 2008 Posts: 76	I also have a Craftsman 30-something gallon upright direct drive compressor. It easily handles all the garage tasks I throw at it. Grinders, drills, chisels, 1/2" impact, tires, etc. For auto-body work or something else that will use large amounts of air for hours on end, I'd recommend something much bigger. For mechanical work, it's plenty. Down side: It is really, really, really, really loud. I don't dare turn it on late at night (when I do most of my work) because it will wake up the entire neighborhood. __________________ 1993 Toyota Xtra-Cab - Mods In Process: 5.7L TPI V8, 4L60, NP208, Dana 44 F, Ford 9" R, Lift

01-16-2009, 03:24 PM	#7 (permalink)
tc Contributing Member Join Date: Nov 2005 Location: Longmont, CO Posts: 8,372	4CFM at 90 psi per tool OFF THE COMPRESSOR (not off the tank) you want to run. The tank size is just surge capacity - at the end of the day, you can only use what the motor compresses. __________________ Check out www.coTTORA.org to hook up with great Toyota 'wheelin' folks! Current - 93 4Runner: 3VZ 33"x10.50" no lift ARB F/R 96 Impala SS: My own personal cop car Previous - 89 2WD Pickup 22R, Fabtech "Ivan Dan" lift, 31x10.50, IASCA World Finals 4th Place Stop with the mods and get on the trail! Pix at www.4wheelingoh.shutterfly.com/action

01-16-2009, 03:45 PM	#8 (permalink)
algranger Registered User Join Date: Aug 2007 Location: Here in the PNW Posts: 3,264	you can always get a motor or smaller compressor and hook it up to a huge tank, it will be a slow fill but wont run out every time you remove a lug nut __________________ . . . I said lie, for me lying under a process tree . . . .

01-16-2009, 05:01 PM	#9 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 7,828	http://www.4crawler.com/4x4/CheapTri...tml#HowMuchAir I run a 12CFM/20 gallon tank compressor for my shop. Usually keeps up with most of the air tools I have. __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club Last edited by 4Crawler; 01-17-2009 at 10:34 AM.

01-16-2009, 05:30 AM	#5 (permalink)
poynter Registered User Join Date: Nov 2008 Location: Somerset, KY Posts: 128	I have a 33 gallon craftsman I got a few months ago. It does the job but its loud and it runs a lot depending on what your doing. It works with an impact and air ratchet just fine, haven't tried to paint with it yet. Just make sure you get a good hose not the crappy ones they give you.

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