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View Full Version : whats a good sandblaster?



JonnyRotten
02-08-2010, 12:40 PM
whats a good sandblaster that wont break the bank.cabinet and handheld.I have a Rolair twin tank compressor with a 5.5hp engine.9 gal,8.9cfm,125psi

PeterK
02-08-2010, 12:52 PM
TpTools.com used to sell DIY plans to make your own cabinet from plywood as well as kits with all the parts. I have a set of plans somewhere but ended up buying one of their own cabinets and love it. It's not just the cabinet that's good, their guns are also superior IMO.

A twin tank compressor for nail guns won't cut it. You'll need more tank volume if you want to blast much.

Is yours gas powered?

they still have kits here: https://www.tptools.com/dg/142_Abrasive-Blasters-Kits.html

3798j
02-08-2010, 12:58 PM
This company makes both at an affordable price. I'm tempted to purchase the "Barrel Blaster", pretty neat. https://www.barrelblaster.com/BarrelBlaster1.htm

JonnyRotten
02-08-2010, 01:03 PM
yes it gas,It refills air pretty quick.I also have a craftsman,15 gal.6.1 cfm@40psi,5.1 at 90psi with a 1hp engine but it takes forever to refill.I wonder if i can link them together with a tee fitting

martx-5
02-08-2010, 02:21 PM
yes it gas,It refills air pretty quick.I also have a craftsman,15 gal.6.1 cfm@40psi,5.1 at 90psi with a 1hp engine but it takes forever to refill.I wonder if i can link them together with a tee fitting

Yes you can link them together. Set the primary compressor to go on at a slightly higher pressure then the secondary. Then if it can't keep up, and the pressure drops more, the secondary will cut in. This way you will work from the two tanks together.

How much stuff do you have to blast?? We have a sand blaster over at Tony's (Ratco). I believe there's another tech session coming up this next Saturday if you want to come and use the blaster.

JonnyRotten
02-08-2010, 02:33 PM
Art,I will definitely be a the session.I was going to blast my rotor hub backing plate.my calipers have a little rust in the bores.I spoke with apple they said its fine as long as the pistons are good.Ill bring them in to see what you think.

TR6oldtimer
02-08-2010, 03:17 PM
Often over looked is the vacuum system needed to remove the dust which adds to the cost. Most shop vacs are not up to the job.

https://www.tptools.com/eccStoreImages/product_images/Images/VAC-35_L.jpg

https://www.tptools.com/p/2322,15_Vac-35-Vacuum-System.html

martx-5
02-08-2010, 04:15 PM
Art,I will definitely be a the session...


I'll PM you to affirm that there will be a session this coming Saturday. Sometimes Tony has other commitments. We're looking forward to meeting you.

TR4nut
02-08-2010, 04:23 PM
I just bought a harbor freight cabinet myself - how critical is the vacuum? I was thinking of running my existing shop vac with a homebuilt 5 gal bucket watertrap in between - not a good idea?

martx-5
02-08-2010, 04:30 PM
If you don't have enough cfm airflow from the vacuum, you won't be able to see what you're doing because of the dust. A lot depends on the size of the nozzle the sand blaster is using and how dirty (rusty) the parts are. If you have too much flow, you could suck up good media. Try it and see how it works. You'll know pretty quickly if you need more air flow.

Tim Tucker
02-08-2010, 06:44 PM
I would splurge for the Carbide Nozzle. I went through many ceramic nozzles in short order. My carbide nozzle still looks new. I checked it the other day after blasting for ~200 hrs over the last 5 months...no change. I was rather amazed. I use x-fine black beauty. I use a 'Rigid' brand shopvac. I'm sure I suck a little media out. My tp vacuum didn't last very long. And to replace it was too pricey for me. Good Luck.
Tim

martx-5
02-08-2010, 07:02 PM
We use the boron carbide nozzles at work. Our cabinets at are running 5-6 hours a day. The boron carbide nozzles are very expensive, but they do last. You have to weigh how much blasting you will expect to be doing vs. the price difference between the boron and ceramic nozzles.

PeterK
02-08-2010, 07:04 PM
I put a 5-gal covered bucket between my Sear's vac and the blaster. Put the IN-from-the-blaster hose near the bottom of the bucket, and the OUT-to-the-vacuum flush with the lid. Works great for the $.

I've wanted to try a carbide tip. Good to know that it works and lasts. A great thing about TPtools is that they sell all the parts and consumables as well as cabinets.

TR3driver
02-08-2010, 07:46 PM
I just bought a harbor freight cabinet myself - how critical is the vacuum? Just makes a mess without it. I used a HF cabinet with just a pot scrubber stuffed in the exhaust port (hopefully to stop some of the glass beads from escaping) and it was OK for occasional use. Oh yeah, after I added a cheap flourescent light inside the cabinet. Without it, I couldn't see what I was doing even without the media flying around!

Gloves sure didn't last long, though. I need to figure out how to attach some replacement gloves to the existing gauntlets.

Tim Tucker
02-08-2010, 07:46 PM
I put a 5-gal covered bucket between my Sear's vac and the blaster. Put the IN-from-the-blaster hose near the bottom of the bucket, and the OUT-to-the-vacuum flush with the lid. Works great for the $.

I'll have to give that a try. The filter on my shopvac 'clogs' rather fast with very fine particles. Perhaps it would help that. Good tip, thanks!
Tim

martx-5
02-08-2010, 08:03 PM
Gloves sure didn't last long, though. I need to figure out how to attach some replacement gloves to the existing gauntlets.

You can get new gloves (https://sandblaster-parts.com/index.php?route=product/category&path=39_111) for about $20 per. They will sell either left of right hand separately. Usually, it's the left that needs replacing...unless you're a southpaw. :laugh:

PeterK
02-08-2010, 08:09 PM
Vacuums also keep down the dust around the cabinet to keep it out of your lungs!

Tim Tucker
02-08-2010, 08:25 PM
it's the left that needs replacing...unless you're a southpaw. :laugh:

That explains why my right glove wore out first..:) I took advantage of a 15% off and free shipping weejend and bought the Eastwood gloves. They are almost too thick. Much thicker than my old gloves.
Tim

Tim Tucker
02-08-2010, 08:30 PM
Vacuums also keep down the dust around the cabinet to keep it out of your lungs!

Amen to that. The free silica of black beauty is quoted as very low, but keeping the mess from spreading outward from the booth is a big plus.
Tim

TR4nut
02-08-2010, 08:33 PM
Somewhere that unfortunately I can't find now, I saw the 5 gallon bucket setup which looked cheap but effective - small amount of water in the bottom, so the discharge dust winds up collecting in the water. After a while, just toss out the grungy water and repeat.

Tim Tucker
02-08-2010, 09:10 PM
I vision what PeterK has with a little water in the bottom to 'hold' the particles. About right?
Tim

PeterK
02-08-2010, 10:33 PM
Hmmm ... water might keep the blowby out of the vacuum. Think?

TR4nut
02-09-2010, 08:51 AM
That's the setup I've seen somewhere - not a lot of water, just enough to cover the intake coming off the cabinet. The vac pulls off the top, and everything 'bubbles' through the water. Probably don't want too much water to keep the vac pulling from the cabinet better.

Twosheds
02-09-2010, 11:39 AM
That's the setup I've seen somewhere - not a lot of water, just enough to cover the intake coming off the cabinet. The vac pulls off the top, and everything 'bubbles' through the water. Probably don't want too much water to keep the vac pulling from the cabinet better.

Just like a bong!

TR4nut
02-09-2010, 02:33 PM
Just like a bong!

Oops, now I remember where I saw this thing in action, nevermind!

Tim Tucker
02-09-2010, 06:02 PM
"I took an old five gallon plastic bucket and drilled two holes in the lid for a couple of pieces of pvc pipe that my shop vac hose would fit on. on the inlet side, feeding from the cabinet, I let it extend to the bottom of the bucket and into a few inches of water. the outlet side is just to the top of the lid so that the vacuum pulls the exhaust from the blaster through the water and the water abrorbs the dust...Works like a charm, but the lid has to fit tight for it to work properly....when you get through, just pour out the water and wash out the bucket for the next session....
Two points to remember. 1. ALWAYS wear a particle mask when blasting...You just can't stop all af the dust from escaping and you don't want any "Black magic" in your lungs. And B. Don't put but a few inches of water in the bucket or the vacuum will pick it up!"

I copied that from here: Machine Shop Talk (post #7; post #13 has pictures)) (https://www.smokstak.com/forum/showthread.php?t=53596) I may have to give that a try. I would love to keep the fine dust out of my vacuum.
Tim

TR4nut
02-09-2010, 07:07 PM
That's it! Thanks!

TR_JOE250
02-10-2010, 03:06 AM
I have an old Rainbow vac that I'm going to try when I get a cabinet some day. I hope it will move enough air to do the job.

hilsideser
02-10-2010, 11:21 AM
Got four shop vacs, been on the hunt for blast cabinets. Saw 2 in the "IWANNA" weekly trading paper going for $225, 1 bench and 1 floor. Missed it though. Still looking.

I have some small parts I want to powercoat soon. I have TWO ovens in the barn, not hooked up yet. The one I will hook up is a slide in with a cook top, which could come in handy when boioing H2O ot soak rubber parts in.

I have the cable, recepticle, pig tail AND breaker... <span style="font-style: italic">soon.. </span>