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  #1  
Old October 4th, 2013, 05:30 PM
javelinadave
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Sand Blasters

I have a Harbor Freight suction fed sand blaster cabinet that I want to do horrible thing to, I freaking hate it. It works 20% of the time or less. Short of spending a grand, what sand blasters are you having success with? It doesn't have to be a cabinet blaster, any will do.
Thanks,
Dave
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  #2  
Old October 4th, 2013, 05:37 PM
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Quote:
Originally Posted by javelinadave View Post
I have a Harbor Freight suction fed sand blaster cabinet that I want to do horrible thing to, I freaking hate it. It works 20% of the time or less. Short of spending a grand, what sand blasters are you having success with? It doesn't have to be a cabinet blaster, any will do.
Thanks,
Dave
I have the 40lbs one from HB and it works great.

Charles is borrowing it now.
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  #3  
Old October 4th, 2013, 05:38 PM
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Come on! It's Harbor Freight! You knew it wouldn't be Cadillac!
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  #4  
Old October 4th, 2013, 05:45 PM
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Quote:
Originally Posted by javelinadave View Post
I have a Harbor Freight suction fed sand blaster cabinet that I want to do horrible thing to, I freaking hate it. It works 20% of the time or less. Short of spending a grand, what sand blasters are you having success with? It doesn't have to be a cabinet blaster, any will do.
Thanks,
Dave
What is the issue?

If its feed issues (as it usually is) just strap a cheap variable speed orbital sander to the box to keep the media moving.
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  #5  
Old October 4th, 2013, 05:47 PM
javelinadave
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It doesn't feed sand. The tubing gets packed with sand and the tip clogs up.
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  #6  
Old October 4th, 2013, 05:49 PM
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A buddy uses a shop vac plumbed in to blow into the cabinet. Keeps dust down and provides a bit of positive pressure. Works great.
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  #7  
Old October 4th, 2013, 05:56 PM
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Originally Posted by JSBriggs View Post
Are you using a drier on the air line?

-Jeff
I am but I'm guessing it's not doing what it's supposed to do. I see moisture when I use the nozzle to blow things off.
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  #8  
Old October 4th, 2013, 06:00 PM
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What psi are you running?
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Old October 4th, 2013, 06:02 PM
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110 psi
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  #10  
Old October 4th, 2013, 06:04 PM
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How big is your tank?
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  #11  
Old October 4th, 2013, 06:05 PM
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75 gallon upright.
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  #12  
Old October 4th, 2013, 06:06 PM
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Hmmmm, how often do you drain tank? Bottom plug release condensation?
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  #13  
Old October 4th, 2013, 06:11 PM
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Originally Posted by Brewie212 View Post
Hmmmm, how often do you drain tank? Bottom plug release condensation?
Every time I use it.
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  #14  
Old October 4th, 2013, 07:04 PM
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If you are only blasting small parts, a pressure pot is the most efficient way to blast.

If you insist on using a suction gun, nothing from harbor freight will be truly effective because the pickup tube is way too small and the airflow through the gun is limited.

Buy a pneumatic foot pedal and use 1/2" air line fed into a Clemco BNP gun with a #4 nozzle. The suction feed is twice the diameter of a harbor freight gun and will suck up media with no problems. You will burn 20cfm, which will let you blast for about 15-20 seconds on a 75 gallon tank @150psi before pressure drops to sub-100psi at which point blasting will be ineffective.

The foot pedal + BNP gun should run slightly less than $100, but it is worth it if you plan on blasting often.

----
If you really want to blast a lot (like an entire frame, all steel parts on a truck and the wheels), you need to rent a 100cfm diesel trailer compressor, a powergun and 50 lb bags of sand. Total cost for a weekend will run several hundred dollars but you will finish the job in a short amount of time.

Caveat: Wear a cartridge respirator and a non-vented goggles. Also cover your arms and hands with rubber blasting gloves otherwise you will seriously hurt yourself.
----
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  #15  
Old October 4th, 2013, 08:06 PM
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I have a similar cabinet and have had good luck so far. I put a drier right at the cabinet and one in the middle of about 50' of air hose. The drier won't do much good right at the compressor, get it away from it a bit and the air will cool off so the the moisture will condense. I use the black beauty medium ($7 or so for 25 lbs from tractor supply) with a shop vac to suck out fine dust. Don't use sand. It holds moisture too easily and the silica is bad for you.
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  #16  
Old October 4th, 2013, 08:58 PM
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yea you need a better water separator my buddy has one and it works pretty good. or you can buy a syphon blaster and those usually work a little better.
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  #17  
Old October 5th, 2013, 11:57 PM
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I ordered this from Summit Racing this evening. Hopefully it solves my problem.
http://www.summitracing.com/parts/dv...commendedparts

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