Re: Abrasive blasters


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Posted by Johnd [71.246.87.210] on Tuesday, July 21, 2015 at 21:21:39 :

In Reply to: Abrasive blasters posted by Caleb in Manhattan KS [70.184.232.53] on Tuesday, July 21, 2015 at 13:20:17 :

The pressure determines the velocity of the sand hitting the metal, but I think the GPM of the washer is equally important, because it determines how many particles are thrown at the steel.

Don't buy a high pressure low volume power washer if you are blasting. I think a 3,000 lb at 4 GPM washer is a good choice. Buy a carbide nozzle on the sand injector instead of the porcelain nozzles.

I would rather buy a used washer with good specs than a brand new one that will take forever to clean metal because of low GPM a flows.



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