# Compressor for HVLP Gun, Grinder, Sander etc.

by Tim Euler
(Delaware)

HVLP Gun, Grinder, Sander, Drills, Impact wrench

I am a home hobbiest. Need a compressor that can handle continuous sanding, Spray Gun painting HVLP, Grinding etc.. At least 20 to 30 minutes straight.

Can you recommend an appropriate size compressor for me and maybe a model and model number?
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I could Tim, but not without knowing what the air demand in CFM and PSI is of the highest demand air tool you plan on using.

All of the tools you list have differing compressed air demands.

Without knowing what the highest demand tool requirements are, you are pretty much doomed to disappointment if you buy an air compressor first, unless it's quite a large one.

See the air tool spec or plate on the handle for that tools air demand, and make sure you get a compressor that can handle that flow. And, if you plan on running the air tool for a long time, you need to consider the duty cycle of the air compressor.

Cheers,

Bill

## how much air for a tornador parts cleaner

by john

I am trying to figure out how big of a compressor I need to effectively use an automotive cleaner that will hold a general purpose cleaner.
Here are a few stats provided by the manufacturer:
Working pressure: 4,5 – 6,3 bar
Air consumption: 270 l/min., at 6,0 bar
They recommend the unit runs at 100psi
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John, 4.5 bar = 67 PSI / 6.3 = 93 PSI.

1 l/min = .0353 CFM (courtesy of www.engineeringtoolbox.com)

Therefore...
270 l/min = approx. 9.5 CFM

You get about 4 CFM of compressed air at 90 PSI for each HP of compressor motor. So, to be safe, you're likely going to need a 3 HP compressor if you plan on running this air tool.

Hope this helps.

Cheers,

Bill

 Dec 31, 2011 would this compressor work? by: Anonymous Would this Speedaire compressor work?High Performance Air Compressor. Free Air Flow @ 90 PSI 5.7 CFM, Free Air Flow @ 125 PSI 4.9 CFM, Maximum Pressure 135 PSI, Tank Capacity 26 Gallons, Tank Type V, NPT Outlet (F) 1/4 Inch, Length 29 Inches, Height 51 Inches, Width 31 Inches, Running Motor Power 2.0 HP, Current Drawn 15/7.5 Amps, Voltage @ 60 hz 115/240 Volts, Cast Iron Air Compressor Pump Item Portable Air Compressor Type Electric Tank Type Vertical Voltage 120/240 Amps AC 15/7.5 HP 2.0 Free Air CFM @ 90 PSI 5.50 Free Air CFM @ 125 PSI 4.9 Max. Pressure (PSI) 135 Tank (Gal.) 26 (F)NPT Outlet (In.) 1/4 Unit Weight (Lbs.) 173 Design Oil Lubricated Replacement Pump 4B246 Length (In.) 29 Width (In.) 31 _____________________Please note that this compressor discharges 5.7 CFM at 90 PSI , and 4.9 CFM Free Air Flow @ 125 PSI.Compare that to the flow demand of the cleaner.

## Can I run power shears with this compressor?

by Brent

Hi. Can I run power shears(4 cfm @ 90 psi) off a CH 4 gal. twin tank comp. rated at 3.7 cfm @ 90 psi?

Thanks.
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Yes Brent, you can, but you won't be happy doing so.

Your air compressor will run out of compressed air frequently, as the air tool will use more air than the air compressor can generate, and you will have to stop and wait for the air to regenerate as the pressure will, ultimately, fall below the minimum operating pressure of the air shear.

If you have a big air tank, and you use the air tool in short spurts, then it might work OK.

Cheers,

Bill

## Use nail gun compressor for painting?

by efrain
(california)

i have a hitachi air compressor model EC 510, just wanted to know is it only used for nail guns?because i want to use it to paint the outside of my house.

i want to use it for other operations other than nailing.
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Efrain, compressed air doesn't care what it comes from. By that, I mean, that the air tool, the paint gun, the die grinder, the sander, all of which use compressed air, will run just fine regardless of the source of the compressed air, as long as the source has the capacity to run the air tool.

So, you can use your air compressor to power any air driven tool, as long as that air tool or paint sprayer uses up to the capacity of your compressor. If you try to run a sprayer or an air tool that uses more air than your air compressor can generate, you will be disappointed.

Cheers,

Bill