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Air compressor for Spray painting

General Tech Talk

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Air compressor for Spray painting

Post by Funk_off »

Hi Peoples, I have seen an air compressor that i like i am just asking whether anyone knows if it will be powerful enough to spray paint a car with. GMC Air Compressor, 1800watt, 40litre Air Compressor, dual output, 2.5 horsepower motor, direct drive, tank pressure between 80psi to 115psi, provides 206litres/min, air displacement.

Thanks
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Post by Bad JuJu »

It will work pretty hard get quite hot and will probably create a lot of moisture in the air storage vessle, I'd suggest you safely plumb in a larger air storage vessle like an old house type lpg cylinder (90l) and a decent filtration for water etc and you should be much better off.
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Post by mico »

whats that in cfm? ideally you need atleast 12cfm for painting with a conventional spray gun, but it can be done with less
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Post by HotFourOk »

Thats 7.3CFM, which is the pump displacement..... but tools usually use the Free Air Delivery rating which is a bit above 100L/min.

I have the same compressor and it uses it's air tank up pretty quickly and the motor works hard if used for long periods. IMO I wouldnt use it for a large spraypainting task such as a car. It is only a cheap unit.
You could go and buy a more robust unit with a larger CFM rating.. would do a much better job .... although they are quite expensive.
Any decent tool shop can show you what HP and CFM you need for the desired tasks.
If you go and find the gun you are going to use.. it usually states the required air flow needed to work correctly. A good gun will also set you back a few hundred bucks.
Last edited by HotFourOk on Mon Dec 05, 2005 1:33 pm, edited 1 time in total.
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Post by munga »

i agree with mico. 15cfm would be sweet. anything less is just a PITA for spraying cars etc..
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Post by HotFourOk »

http://www.totaltools.com.au/downloads/TTI_AirTools/TTI_airtool_4_10.pdf
This shows the range of compressors and the FREE AIR DELIVERY figures..
Air compressors are much like Car Stereo equipment... they just state the Peak Power on the box... but RMS is what matters.. You get what u pay for. This is the same with the Pump Displacement figures and the Free Air Delivery figures. The first shows how much the pump can pump..lol.. but the second one is what you actually recieve from the outlet.[/url]
[quote="RockyF70 - Coming out of the closet"]i'd be rushing out and buying an IFS rocky[/quote]
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