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Sandblaster question again

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Sage

11-27-2001 19:26:37




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Thanks to all who responded to my earlier question. I bumped into a guy who works at a rental place today and he had heard I was looking for a sandblaster. His company had a used p.k. lindsay 300LA (300lbs) for sale for $150 and I bought it. It looks to be in good condition, good hoses, no rust visible, fair paint, gauges and valves work properly, but I will need to replace ceramic tip. I will be running it off of a sullair 100 cfm compressor. Could you guys give me some do's and don'ts of running this thing. What should my psi be and what size tip should I use. Everybody says use a 3/4".

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bryani

11-28-2001 19:00:20




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  
Congrats, sounds like you got a good deal on your tank. Look at buying one of the screw in type metal tips, I think they are made from carbide or boron. Expensive but they last much longer than a standard ceramic, even if you drop them. I have two I got for nothing and they are great. I think I've seen them in Grainger or McMaster catalogs. I think with that much air these will be much better in the long run. I do plan on making it so I can use old "wore out" ceramic tips on mine for sheet metal so the metal won't distort as much. Good luck.

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Mike

11-28-2001 14:27:52




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  
cover everything you don't want sand in- I still have sand in my toolboxes from a year ago; I thought closing them would be enough, next time I will sheeeet em



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Sage

11-28-2001 19:36:03




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 Re: Re: Sandblaster question again in reply to Mike, 11-28-2001 14:27:52  
I did mean 1/4" for a tip, not 3/4". Will use your guys helpful information to the fullest. One more question. How do you sandblast around a seal and other sensitive things? Do I just leave things like that to the the wire cup wheel? Will be sandblasting my excavating equipment, with a 35 ton pitts lowboy being the first.



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Franz

11-28-2001 13:53:37




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  
You mean a 3/16 tip, not 3/4. Start off with a good supplied air helmet, and only use Black Beauty media. Also hearing protection, and a couple good pair of rubber gloves.
Next, you need a flunkey who can load the hopper while you have a beer.
Start off with that compressor set down to about 80#, and see how it works. You may want to go higher for castings and structural, and possibly down to 60# for sheet metal.
I own a Lindsay 200# rig, and it's a nice machine. It does not, however, work well with a nozzle shutoff. Another big thing with a sandblaster is to start out by emptying the media tank and thoroughly inspect for trash. These machines have a magnetic attraction for cigarette butts and all sorts of junk.

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Pascal - Que

11-28-2001 10:27:22




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  
Wear tight fitting underwear-believe me the sand will get everywhere



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BooBoo

11-28-2001 09:31:50




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  
Thats a big blaster and air supply, I used to do tomato harvesters with one that size !! You should only do cast parts with that size, you might deform metal parts. Cut the air done to 100 or less and smaller tip than 3/4 that is way big. you will need 1/4 or maybe smaller. Unless your blasting a building!!! If you have to do metal parts stay further back so you do not distort the metal! Good Luck

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fresh air hood

11-28-2001 07:19:12




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  
get a fresh air supplied hood first.....



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gene b

11-28-2001 06:37:00




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  
you got a good deal get ceramic nozzles from W.W.GRANGER that is probably what is on there the 3/16 nozzle will work great at 80psi be sure to screen your sand when filling might want to install a high flow regulator on the air compressor until you get in the bridge sandblasting this set-up will work great glad to help anytime



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W.W.

11-28-2001 05:06:43




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 Re: Sandblaster question again in reply to Sage, 11-27-2001 19:26:37  

with a 3/4 inch tip you'll have to get sand by the semi load



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