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Which sand blaster to buy?

Started by AirborneSilva, January 14, 2007, 12:43:41 PM

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Troy

I've always read that pressurized is better. I haven't used a non-pressurized unit to tell you the difference though.

Troy
Sarcasm detector, that's a real good invention.

Charger-Bodie

pressure for sure gravity blasters are not fun to fight with
68 Charger R/t white with black v/t and red tailstripe. 440 4 speed ,black interior
68 383 auto with a/c and power windows. Now 440 4 speed jj1 gold black interior .
My Charger is a hybrid car, it burns gas and rubber............

moparguy01

Quote from: AirborneSilva on January 14, 2007, 12:43:41 PM
Which of these three would you buy?

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94166

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=9588

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=44762

Thanks for looking....

get a pressureized one. I use this one at work for the small stuff. http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=95014 but I have it rigged up into a small sand blasting cabinet (big enough to get 2 rims in it at least) and then i also pressurized the cabinet using a large dust collector http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=45378 which is hooked up in the rear. the setup works real good.

For large stuff we use about a 200 pound pressurized hopper with a dedicated air compressor so we dont even run low on air.

hope that helps abit

TripleBlackGator

Check out these guys. They are always at the Carlisle spring, summer, and fall shows. I have one of their pressurized 50 lb. portable units and like it a lot. Their cabinets look nice too.

http://www.tptools.com/prod_list_display.asp?dept%5Fid=L1%7E53&dept%5Fname%5Fp=Abrasive+Blasting+Cabinets&mscssid=11635P3LC87C9GXTS0QWQP8DE2D92TA0
Malicious, vindictive, spiteful, cynical, pessimistic, sarcastic, & antagonistic. And those are my good traits!

daytonalo

I guys , most of you know me , but for those who don't ,I do powdercoating and auto restoration . Here a few pics of my sandblasting equipment . For large items I have a 12x20 poly building and a 200 pound pressure blaster, supplying air is a  Ingersol Rand , three cylinder diesel duetz,the thing just showed up in my yard one sunday , what can I say I live in N.J ! For smaller items I made the front part of a truck body a blast cabinet out of plate steel , it has a tapered bottom, I only use aluminum oxide in there , very little dust , in fact I still have the same media going on 6 years . The other photo is of my harbor freight 7.5 2 stage comp linked to a harbor freight air chiller , for those of you who don't know , it brings air temp down to 35 degrees , therefore reducing moisture . If anybody has any questions on blasting or what works , I am willing to help . Larry O

daytonalo

more 

sharpspike

hey airborne

if your going to be blasting your car, heres a link with some good info. read the media blasting rules.

http://www.consolidatedstripping.com/generalinfo.html

hope the info helps you.

AirborneSilva

Thank you all, I will be going with a pressurized system since that is the definet consensus.  Sharpspike, thank you for the link and you can be assured I will be reading that tonight....  :yesnod:

AirborneSilva

Ok, so now my next question is this - which one of these two would you buy?  Remember, this will not be used on a daily basis so I'm not looking for anything industrial. 

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=34202

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=44762

moparguy01

the 40 pound. Keep in mind your going to run through 40 pounds of sand in about 3 minutes before you have to reload the hopper. so go bigger unless you like stopping. if you can capture the sand you can usually strain it and use it 2-3 times before it turns to dust. but make sure to strain it or else other crap will get in the sand and plug the nozzle.

AirborneSilva


moparguy01

i use a mesh found at a fabric store thats folded over 4 times and "sift" the sand.

daytonalo

Keep it simple , any old house screen ,with metal frame . Lay it over a tub and sift away . MAKE SURE YOU WEAR A RESPERATOR !!!!!!!!!!!!!!!!! NOT A PAPER MAST

AirborneSilva

Quote from: daytonalo on January 15, 2007, 11:56:50 AM
Keep it simple , any old house screen ,with metal frame . Lay it over a tub and sift away . MAKE SURE YOU WEAR A RESPERATOR !!!!!!!!!!!!!!!!! NOT A PAPER MAST

Thank you, and I will get a resperator.  Where's a good place to get sand?  does home depot or lowe's sale it?

daytonalo

Nope , find a concrete / block supplier, for not heavily rusted metal use 000 sand , I pay 4.50 for 100 pounds . Stay off sheetmetal , it can take years to master that  ! What ever you need , let me know . Larry O

AirborneSilva

Quote from: daytonalo on January 15, 2007, 04:42:56 PM
Nope , find a concrete / block supplier, for not heavily rusted metal use 000 sand , I pay 4.50 for 100 pounds . Stay off sheetmetal , it can take years to master that  ! What ever you need , let me know . Larry O

Thank you Larry, we have a concrete/block supplier here in town, hopefully they will have it (and at that price too!)....

Thanks,
Tony

Silver R/T

Ive got pressurised one but havent had chance to try it out yet as I only got my compressor this last saturday. I use cabinet blaster at work. perfect for blasting small/medium parts
http://www.cardomain.com/id/mitmaks

1968 silver/black/red striped R/T
My Charger is hybrid, it runs on gas and on tears of ricers
2001 Ram 2500 CTD
1993 Mazda MX-3 GS SE
1995 Ford Cobra SVT#2722

AirborneSilva

I got my blaster all hooked up today and found me some sand, silica sand which says on the bag that it's not for sandblasting, but the people I talked to at home depot said that everyone uses it.  I did try to find some at a cement, sand and block place  like you, Larry, suggested but they didn't have a clue so I went to home depot where I found this sand.  I think I got too fine of sand though, it did take off some surface rust and I think that it will be great for working thinner metals but I think I need to get some more coarse sand for the heaver stuff.  All in all I was pleased with my purchase and with my first attempt at sandblasting.  Oh yeah, I also get a resperator per Larry's suggestion too...

daytonalo

I use whats called , triple ooo sand on resto projects , double oo ,on very rusty heavy iron

AirborneSilva

How fine is that 000?  sounds like it would be some fine stuff, kinda like I got today.  If I remember right it came in 20, 30 and 60 (60 being what I got), I remember seeing some of the 20 that had leaked out of a broken bag and it was much more coarse then the 60.  I tried what I have on a brake drum and it pretty much did little to nothing.

daytonalo

I have been buying silica sand for 20 years , ooo and oo sand , it is some very fine stuff , I know what you bought and that stuff is very coarse . Are you sure you have the correct tip for how much pressure you have

AirborneSilva

Larry,  I don't have a clue if I have the right tip or not  :icon_smile_big:  What size should I be using?

daytonalo

If it is a pressure pot , and you have around 75 lbs of wide open air , by the way that would be at least a 5hp  comp , you would use a  3/32 nozzle , bottom line you want to have at least 75 lbs in the pressure pot , not only at start up , but at wide open as well .

70charger_boy

Airborne, I would get an airfed respirator.  I sandblast and airfed is def the way to go

AirborneSilva

Larry, the cheap nozzles that came with my blaster don't have markings on them so I don't know what sizes I have.  As for my compressor, I have a 190 hp compressor  :icon_smile_big: it's connected to my jeep.  My setup is a York 210 compressor, I have between 5 & 7 gallons of reserve air volume (which I know is my down fall there).  I do have an oil seperator on the setup, then I have a filter/regulator then the blaster has it's own water seperator so I think I'm pretty safe from water and oil contamination.  I know that a dedicated compressor like a 5 hp 220 volt with a 60 gallon tank would be ideal but it's what I have for the time being.

Roscoe, I wish I could have a setup like that and know that it is ideal and the safest way to go but for now, like my compressor it's what I have.  But please don't think I don't appreciate you looking out for a brother  :yesnod:

Troy

Quote from: daytonalo on January 14, 2007, 04:48:50 PM
I guys , most of you know me , but for those who don't ,I do powdercoating and auto restoration . Here a few pics of my sandblasting equipment . For large items I have a 12x20 poly building and a 200 pound pressure blaster, supplying air is a  Ingersol Rand , three cylinder diesel duetz,the thing just showed up in my yard one sunday , what can I say I live in N.J ! For smaller items I made the front part of a truck body a blast cabinet out of plate steel , it has a tapered bottom, I only use aluminum oxide in there , very little dust , in fact I still have the same media going on 6 years . The other photo is of my harbor freight 7.5 2 stage comp linked to a harbor freight air chiller , for those of you who don't know , it brings air temp down to 35 degrees , therefore reducing moisture . If anybody has any questions on blasting or what works , I am willing to help . Larry O
Now THAT is a compressor! Make mine look so... inadequate.

I have been wondering about blast media for a while too. The only stuff I have now are glass beads which came with my cabinet - I've never used it. I guess I need to hunt down a concrete place - $4.50 sounds like it would be right up my alley.

Troy
Sarcasm detector, that's a real good invention.

daytonalo

ONE WORD , VOLUME , AND YOU HAVE NONE . MIN WOULD BE A 5 HP COMP , THAT IS AT THE BOTTOM FOR SURE . .....................

AirborneSilva

Sounds like I need to see if I can't find me some old tank to rig up for extra volume then.  Thanks Larry

daytonalo

Just go to harbor freight , 7.5 hp 1300.00

AirborneSilva

 :haha: God bless you Larry, I wish I had the money for that.  I am literally saving my change to rebuild this car.  Hopefully when the wife comes out of retirement that will change but for the time being this is my reality.  Homedepot has a 5 hp, 60 gallon compressor for $399, I wish I could buy that!

EDIT:  I just came back from Home Depot (had to get some wire to pull the rear window out), I made a mistake, the compressor for $399 is not 5 hp, it's 7 hp....

daytonalo

Look in paper for a used one , post an ad in craigs list for a commercial grade comp , there are guys out there who refit gas stations and sell that kind of stuff all the time . Craigs list is free .