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Old 05-04-2010, 10:22 AM
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air dryer for air compressor

setting up an air compresor to be used for occasional sand blasting, running air tools, perhaps some non cosmetically critical parts painting.

I have seen air dryers that are over 1000.00,,,,, in lieu of spending that much
any one familiar with this unit?
Would this be worth the cost, re fils are about 20.00
I live in central Indiana, lots of humidity in the summer time

http://cgi.ebay.com/ebaymotors/Eastw...motiveQ5fTools

thanks

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Old 05-04-2010, 05:14 PM
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I had one of the DeVilbiss units. A friend of mine had an "air dryer" Made from an old refridgerator and an old LARGE radiator type cooler, mounted in the fridge. Air in one side, then a drain mounted to the lower part of the cooler. Then out the other side of the fridge. A regular air seperator and cheapy filter. Worked great for paint jobs.
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Old 05-04-2010, 06:31 PM
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did the devilbliss unit have replaceable desiccant pellets, if so how long did they last?
and
neat idea on the fridge, I may try that
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Old 05-04-2010, 07:32 PM
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There are a bunch of good posts here if you do a search.

Generally what you will see is a pretty good dryer at the end of about 50 feet of copper line with a drain or several if there are several copper line loops. Myself, I'm not interested in Eastwood's overpriced Chinese "treasures". This, below, is what I used successfully to paint cars in the summer. Others have more elaborate and much more expensive set ups depending on how much air tool work they do.



The first filter is a Harbor Freight $20 to knock out the dirt and big moisture slugs, the second is a Sharpe self draining filter which was about $80 if I recall correctly. I also have a vertical leg with a 90* and a gate drain valve(shown) before the filters and one just after the compressor feed to the actual line. There is also a little filter right at the compressor to remove any possible oil, but it has never shown any. After this photo was taken, I added a good pressure regulator at the outlet for my initial spray gun adjusting then did the final with this removable gauge instead of hanging it off the gun and messing up the balance and flexibility in tight spots.



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Old 05-04-2010, 07:44 PM
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No dessicant pellets. Just traps and refrigerated air.
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Old 05-05-2010, 12:48 AM
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Where did you buy your Sharpe from?
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Old 05-05-2010, 05:05 AM
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Quote:
Originally Posted by MRGM
Where did you buy your Sharpe from?
I bought it from here: http://www.autobodystore.com/Filter/regulato.htm

It looks like the 707 has been superceded by the 606 line

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Old 05-05-2010, 06:33 AM
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You could do a home made air dryer by using a NEW trans cooler such as http://www.jegs.com/i/Perma-Cool/771/1015/10002/-1.
Make a stand that holds the coil in a vertical position with the tubes running horizontally.
Pipe air in at the top, out at the bottom, then to a water trap and on to your filter/regulator bank.
Set the coil up out on the lawn and let the garden hose run on it from top to bottom when painting.

Alternately you could mount it to a box fan and move air thru it but you won't get as much temp drop as with the water.
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Old 05-05-2010, 08:23 AM
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Quote:
Originally Posted by Irelands child
I bought it from here: http://www.autobodystore.com/Filter/regulato.htm

It looks like the 707 has been superceded by the 606 line

Dave W
thanks for the link
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Old 05-05-2010, 08:24 AM
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Quote:
Originally Posted by Old Fool
You could do a home made air dryer by using a NEW trans cooler such as http://www.jegs.com/i/Perma-Cool/771/1015/10002/-1.
Make a stand that holds the coil in a vertical position with the tubes running horizontally.
Pipe air in at the top, out at the bottom, then to a water trap and on to your filter/regulator bank.
Set the coil up out on the lawn and let the garden hose run on it from top to bottom when painting.

Alternately you could mount it to a box fan and move air thru it but you won't get as much temp drop as with the water.
i thought of putting a trans cooler between the pump and tank, running a fan on it, and putting a ac-dc converter on one of the 120v legs to the compressor.
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Old 05-05-2010, 10:33 AM
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in using an oil cooler or a radiator,
I like the though of using a 12v electiic fan
at what level does air pressure get to be a problem, for bursting,,,,?
I will be using the air supply also to power a sand blast unit, so pressure will be important

thanks
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