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Wanting to buy a little compressor and soda blaster

  • Thread starter Thread starter Canuck_gs
  • Start date Start date
C

Canuck_gs

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So I'm thinking it's time that the garage had an air compressor. I'm pretty broke, don't have a lot of space available, and was wondering if the 2 gallon Mastercraft compressor below would be adequate for typical garage jobs (blowing off surfaces, filling tires, etc.), as well as soda blasting. I've read blaster review that say you typically want a larger compressor for that purpose, but I have never done anything like this before and would love some advice. Thanks!

Here is a link to the compressor I'm looking at:
http://www.canadiantire.ca/browse/product_detail.jsp;jsessionid=QDbGYqnhG0JQ5JnGCfXvtDH7yJl1LTyXG3VWRXzP7L5hBg9BRhd6!-1415148465?PRODUCT%3C%3Eprd_id=845524443334980&bmUID=1354980166620
 
That compressor is way too weak to blast with. From experience blasting stuff, you will want at least a 15A, 110V (1.5 - 2.0 hp) compressor motor, and a 20 gallon tank. A few years ago the compressor manufacturers inflated their compressor motor hp claims such that you can't trust the numbers, but if you look at the motor amps that is a better method to judge the available power. This won't be a problem if you purchase new, but if you buy a used compressor, keep this in mind.
 
I have an 18 gallon CH compressor and it falls on it's face when using it for applications that consume a lot of air quickly. Like my die grinder.
Something like a 2 gallon would be useful for filling tires or blowing stuff off, maybe a small finishing nail gun.
 
The cheapest possible way to do soda blasting.

He states at the beginning of his write up:
"As far as air compressors are concerned for blasting, the bigger then better. The more CFM it flows the better the results will be. If you try and blast with a tiny 2 gallon compressor, you will be disappointed. For best results use a compressor with at least a 25 gallon tank that flows at least 6 - 7 CFM. I personally use a 60 gallon, 5hp, upright, Ingersol Rand and get fantastic results. Again, the bigger compressor the better."

You can still do it with a smaller one, but it will mean taking more breaks to let the compressor recharge. Mine takes forever, lol.
 
go by the CFM (cubic feet per minute) output of the compressor.. that one you were looking at only has .7 CFM ..

always look at the rating for the higher pressure, by that, I mean the CFM will be greater at a lower pressure, naturally!!

And not too many tools will run on .7 cfm, maybe a blowgun and tire chuck ( but it would take quite a while at that to fill a car tire as opposed to a few seconds with more CFM.

The one in my shop has 5 CFM and I wish it was TWICE AS BIG for blasting at least..

A good good example is the air impact I use.. it takes 5 CFM to run it at 100#, and my

glass bead blaster is supposed to be 7. It works great for 20 seconds then the compressor kicks on, and runs forever not keeping up.
 
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