The Abrasive Blasting Resource Thread

[Jswain]

For $200 I would think you could make some pretty good $ flipping that if everything works.

 

[930dreamer]

Only (2) items that I'll need to source, some type of fuel tank(no idea what size it had) and a side panel is missing. I see my profit shrinking already.

 

[dkmc]

Clear bra?? Can you explain and provide a link

For the lights I bought a strip of 3m clear bra off amazon for $10 and cut strips to fit, enough to cover them 20x each
https://photos.app.goo.gl/d2zTrexCR2VQAi4w6

 

[Jswain]

https://www.amazon.com/3m-clear-bra/s?k=3m+clear+bra&ref=d6k_applink_bb_marketplace

3m paint protection film like they put on bumpers and hoods etc

 

[dkmc]

https://www.amazon.com/3m-clear-bra/s?k=3m+clear+bra&ref=d6k_applink_bb_marketplace

3m paint protection film like they put on bumpers and hoods etc

Never heard of it.....thanks!

 

[Jswain]

No problem. Haven't had it in long enough to see how well it lasts but ill be using the cabinet tomorrow for 4-5 hours straight so it will be a good trial for the window screen/led lights/3m film

 

[dkmc]

No problem. Haven't had it in long enough to see how well it lasts but ill be using the cabinet tomorrow for 4-5 hours straight so it will be a good trial for the window screen/led lights/3m film

Let us know how things go

 

[Strouty]

Clear bra?? Can you explain and provide a link

Just search google, there are all kinds of fun things that pop up, mostly in pairs.

 

[930dreamer]

Any ideas on a fuel tank?

 

[OccupantRJ]

I bought this compressor, now deciding if I should flip it?

If it runs, put it to work!

 

[930dreamer]

What to look for in a used pressure pot set up, looks like I'll have 100 cfm +-.

 

[Strouty]

If I were closer you could use my big cabinet, I think it needs 70 CFM

 

[930dreamer]

If I were closer you could use my big cabinet, I think it needs 70 CFM

Looking for something to use outside.

 

[slopdog]

i was in a pinch once and used , 2 in wide clear packing tape , when it gets fogged up peal and replace . ive been useing if ever since .
how long it last vary,s on what im blasting (sand deflecting back onto the tape )

 

[Jswain]

Let us know how things go

Lights & windowscreen is definitely a huge improvement. Blasted for about 5 hours straight with ebonygrit no problems with visibility and didn't have to stop and clean the window once.
3m protectors on the lights might have a very slight haze but lights are still super bright so I'll leave them for another round

Compared to the last time I blasted the same parts I had to stop once an hour to clean the window/light bar and add another flashlight looking down through the window(up to 4 at the end lol) because the plexiglass was too hazed up and still couldn't see sh☆t i call this a win

 

[dkmc]

That's good to hear. Thanks for the report.

 

[cesarbee440]

to:930dreamer

thank you so much for posting the cartridge filter conversion on your reply (post #660)

cesarbee440

 

[930dreamer]

to:930dreamer

thank you so much for posting the cartridge filter conversion on your reply (post #660)

cesarbee440

If I drive out to the shop today I'll get some pics of the filter bags.

 

[cesarbee440]

Petersen dust collector I'm rebuilding but not sure if these are even the right filters. I bought 10 and with shipping, handling and tax cost me $400.

 

[cesarbee440]

Curious why the one square piece has fabric sandwiched in between. It mounts below the channel that's tack welded about 6 inches from the bottom. Dust collector will end up with the cartridge filter conversion sometime.

 

[930dreamer]

Curious why the one square piece has fabric sandwiched in between. It mounts below the channel that's tack welded about 6 inches from the bottom. Dust collector will end up with the cartridge filter conversion sometime.

The ones in my large cabinet have a metal frame at the open end that the bags are glued to, and have steel wool type material inside.

 

[cesarbee440]

My new bags look different. Aren't the washers for weight? there's no eyelet on mine on either end to put on the hook and one end is open. The piece below the channel has fabric sandwiched in between the angles and riveted. Was that a gasket of some sort? Everything inside the box was torn up.

My understanding is that the air comes in from the bottom(behind filters)and exits at the top with holes like a grill. There's a bar with hooks to shake the filters and the bottom door has rubber and foam gaskets. Would the dust laden air also get past the bag filters and just blow out the top?
I'll clean and button up best way I can figure out and see if it works... it will eventually get a cartridge filter change.

Catch pan is only an inch tall.

The motor of this is on top of the hopper that is attached on the side of the sandblaster.

 

[cesarbee440]

The ones in my large cabinet have a metal frame at the open end that the bags are glued to, and have steel wool type material inside.

930dreamer
are you doing the cartridge filter change?

 

[930dreamer]

930dreamer
are you doing the cartridge filter change?

I'd like to say yes as this one has around 32 bags, another project.

 

[dkmc]

Petersen dust collector I'm rebuilding but not sure if these are even the right filters. I bought 10 and with shipping, handling and tax cost me $400.

OUCH

 

[930dreamer]

Here's one from my cabinet.;

 

[cesarbee440]

IDS Blast have bags for $15.10 each. I paid double! The felt looks like the duck material available at Joanne's Fabric.
I can have my brother make me some as he has a nice upholstery sewing machine but I want the cartridges instead now.

 

[cesarbee440]

Hey 930....
Those Pulse Valves listed as McMaster Carr 5496T11@ $57 can be had a lot cheaper from Bag House......

http://sales.baghouseamerica.com/pentair-goyen-valve-replacements/

On the Goyen brand pulse valve both 3/4" from Baghouse.. One is listed for $28.97(RCA 20T000) but another (RCA 20T001) is $68.87 and they look the same. I wonder what gives?
Searching for cartridges, found one for $66 plus shipping and made by Clark Filters, another is only $51 and no shipping but probably arrives way later and made in China? The made in China order flagged my bank account instantly and scared me away!

 

[cesarbee440]

Was able to compare descriptions side by side on the similar looking Goyen brand 3/4" pulse valves and the more expensive one has a diaphragm for a more extreme heat operation. So compared to McMaster Carr at $57, this brand is only $28. Two for one!

 

[dkmc]

Was able to compare descriptions side by side on the similar looking Goyen brand 3/4" pulse valves and the more expensive one has a diaphragm for a more extreme heat operation. So compared to McMaster Carr at $57, this brand is only $28. Two for one!

Sounds like it's worth the risk.....
When buying from China, or on EBAY, always use Paypal for protection.

 

[930dreamer]

What are your thoughts on adding a large air tank(240 gal or larger)to a V8 powered gas stationary compressor? I'd like to place this Grimmer Schimdt outside on a slab and plumb it to feed a large receiver tank for the shop and be able to blast with it outdoors. Curious about the valving setup etc. The compressor has two outlet valves.

 

[dkmc]

Check valve between pump and tank, at least one safety valve on tank, 2 is better. One advantage of a large storage tank, is the air from that compressor is relatively cheap compared to electric, so fill the tank when operating, and then there's air for general shop use for awhile. Maybe not a factor in Texas, but elec. is not cheap in upstate NY.

 

[cesarbee440]

I had (2) 5hp compressors that have 80 gallon tanks and we have it hooked up to an additional 120 gallon tank we took out of the body shop that replaced with a 240 gallon tank.
I can sandblast for 2 1/2 minutes then one of the compressors will start up and run for 4 1/2 minutes...sometimes both compressors will run then stop. Guy is going to put a timer and hook up both to one switch? He said another option is expensive where they run one after the other. Seems like I can keep blasting longer, one or both of the compressors run at times.

 

[dkmc]

I would think you'd just set the pressure switch on one about 5 lbs lower than the other? Then when the pressure drops, one kicks on, then the other kicks on. Maybe set them both to about the same turn off pressure? No money to spend with that setup. Not sure why or how a timer would be useful?? Your 'guy' might just want some of your money

 

[cesarbee440]

Compressor guy rebuilt my older Saylor Bealle compressor and the flywheel cracked and took a chunk where a single bolt tightens the flywheel to the crankshaft snout.
I told him I cannot weld the chunk as there's no access to all sides as I needed to 'vee out'. I am thinking of just building up the weld and put a copper rod with copper sheet aroundthe bolt hole to build up the weld. Guy said it might be hard to find a replacement flywheel this old and he thinks this compressor is better than my Champion and Ingersol Rand 5hp!

 

[dkmc]

Buy a new flywheel........
https://www.jackssmallengines.com/equipment/list/air-compressor/Flywheel/

 

[cesarbee440]

He has rebuilt 3-4 compressors for me and I got the Champion compressor for free after helping put a roll up door in a shipping container for a friend. My guy's estimate was $400-$450 to repair but only charged me $200 when he dropped off. I trust him but your idea sounds good. I will ask him about it.

This same guy installed a 25hp rotary screw Kaeser compressor with the 240 gallon tank I mentioned earlier in our shop at a very reasonable price. He's retired and works a little on the side.

 

[cesarbee440]

wow! Maybe these guys can help me out.

Thank you!

 

[dkmc]

Good luck to you

 

[OccupantRJ]

I would think you'd just set the pressure switch on one about 5 lbs lower than the other? Then when the pressure drops, one kicks on, then the other kicks on. Maybe set them both to about the same turn off pressure? No money to spend with that setup. Not sure why or how a timer would be useful?? Your 'guy' might just want some of your money

Dkmc, how’s it going? I just had two heart stents installed a month ago right after my 68th birthday but I am back out in the shop blasting away on a Club Car Carryall 2 refurb and engine swap. I was like a blast cabinet running out of air is what signaled me to get checked out. Doing well heart wise, now need two knees.

I considered a flip flop control for my two compressors, but so far have not done so. The biggest advantage to me would be cylinder cool down time between cycles, as long as one unit can do the basic job. While one is running, the other is having a chance to cool off. For anyone interested in doing so the small solid state controller device is around $30, and ties into each compressor’s motor starter contactor to alternate which one runs.

I have the suction air jets in each of my two cabinets sized so that a compressor will keep either cabinet supplied at a pressure of about 75 psi under continious blasting, then shuts off 45 seconds after releasing the foot pedal. That seems to be the optimum for me as there is no waiting for the compressor to catch up during a blast session, and that pressure does fine for the type blasting I do.

My shop electrical is 60 amps, so running both compressors at the same time, along with the heat pump and lighting, pushes the envelope a bit hard considering the startup surge on the compressors.