Re: harbor freight sand blaster

Posted by Brad Gyde on February 18, 2012 at 22:43:23 from (50.36.125.144):

In Reply to: harbor freight sand blaster posted by mark in boonville ny on February 18, 2012 at 13:52:06:

Mark,

I have 2 pressure pots.. One is a HF/TSC unit (same dang thing, different brand names) and I had troubles similar to yours, at first..

I screen my sand with a fine screen, even if new in the bag.. You still get some chunks sometimes, and then you have problems. Dry sand is a verrrry good point also.

I close the "feed valve" before filling, then fill, close, and put air to it..

For air I have a 60 gallon vertical compressor that puts out ~14cfm @ 90, and I couple that with my gas compressor, which the cfm is unknown, but it lacks in the volume dept, as it's a 5 gallon wheelbarrow type, but has a 8 horse engine and a bigger pump than my electric one has.. I tie the gas into a port I plumbed into my stationary. I leave the drain valve on the stationary cracked just enough you can see a drip or just hear air coming out. From the stationary, I run about a 30 foot hose, then a water seperator/regulator (and I leave the drain valve on that cracked as well) then another 25-30 feet of hose, then there's the water trap on the blaster.

Once the pressure pot is full, I start to blast, and slowly open the feed valve until I get the right feed.. (I made a rod that hooks to the feed valve so I don't have to bend over, I can adjust it right at the top.. it was really simple to do.. drill a hole in the feed valve handle for the size rod I have, then heated the rod and bent it around so it comes to the top and will still open/close the valve)

My second pot is a ALC.. and it's a better blaster.. Easier to fill, the tips are slightly more money, but seem to last forever (One costs about the same as the pack of 4 replacements for the HF unit, but last WAAAAAYYYYY longer.. I had used up 4 or 5 hf tips in ~200 pounds.. the ALC has shot well over 800 pounds of sand, and the tip is hardly worn).. It just all around seems to work better.. I use the same setup for air, and the same deal to get it off and blasting.. I recommend the ALC.. Mine is WELL USED (belongs to my uncle, who has not used/needed it in many years) but if he ever needs it back, I will certainly buy my own just the same as what he has, as the model seems to be available still.. Slight updates have been made, however.

As for my sand, we have a bagging plant near here ~30 miles and a lumberyard that sells it ~4 miles.. The stuff at the local lumberyard is, IIRC, bagged/labeled as a quickrete product.. I think last summer it cost me about $8.50 a 80lb bag.. I can get it cheaper at the bagging plant, but I usually only buy a few bags at a time, so it's easier to go to the lumber yard, plus with work, it's near impossible to get to the bagging plant during normal business hours (I can also get the sand at the bagging plant even cheaper in large quantities, if I want to just let them dump it into my dump trailer it's cheaper still.. and I'd do just that, if I knew I'd use it all up in short order or had somewhere to keep it dry)

Brad

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