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Sand blaster DIY?

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#1 DougH

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Posted March 16 2011 - 10:28 AM

How much compressor does the cheap siphon gun sandblasters need?

I have a few mower parts that need some light sand blasting. The last time I had some blasting done that job was great but it was damn expensive for the application (beat up old lawn tractors).

I was thinking about getting a cheap siphon sand blasting package, maybe 50 bucks or so from Harbor freight.

I have a 50 gallon craftsman air compressor, 120v, nothing special.

I also have a 20lb CO2 cylinder. If the compressor doesn't have enough CFM to keep up I can't see a reason why I couldn't use the CO2 tank to power the setup.

All non lead paint, just rusty old mower parts that need a blast and repaint.


#2 ted527

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Posted March 16 2011 - 10:45 AM

compressor should have cfm rating on it, blaster should have cfm requirements listed.

worst case you might have to wait a little between blasts for compressor to catch up.

50 gallon tank up to pressure should give you a decent amount of run time.

#3 speedracer

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Posted March 16 2011 - 1:10 PM

You need a compressor that can deliver a lot of pressure and CFM's at the same time.

You're getting sleepy. ....very sleepy.....

#4 gray gables

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Posted March 16 2011 - 1:17 PM

You need a compressor that can deliver a lot of pressure and CFM's at the same time.

yup, what he said, I have a small hand sand blaster, it takes alot of cfm to run these, never mind a bigger one,

#5 Wraith

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Posted March 16 2011 - 2:46 PM

A 1/4" Nozzle with a 1/8" Air Jet will use 25 cfm at 100 psi. You'll be surprised at how little 'work' you can accomplish with without the necessary 'Air' behind it.

SLOP. (Standard Liberal Operating Procedure)