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Thread: Picked up a sand blaster

  1. #31
    Super Jr. Moderator Stretch44875's Avatar
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    Free is always good. And waiting for air sucks. We stuck a 1/2 pipe nipple on it for testing, and it blasted with it fine. Compressor was running full bore, 80-90 psi. The blaster has a remote system on it, you put air to a valve to close the vent valve, and open the supply valve. Would like to switch to electric compressor at some point, but would need 100hp to match what we have.

    Dennis
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    52 M108, multifuel
    46 CJ-2A, rough
    45 Willy MB, 426468

  2. #32
    4 Star General scooter01922's Avatar
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    Who are the goobers in the red truck???
    Proud to own Builder77's former ride. R.I.P. Ethan
    1970 M35A2C with hardtop and heater, no winch.
    Studebaker M108- currently running, resto pending.
    Studebaker M35A1 with plow and LDS 427- FOR SALE
    Avatar= Pic taken minutes after landing from first SOLO
    flight.


  3. #33
    Super Jr. Moderator Stretch44875's Avatar
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    Goofy kids of mine...
    52 M108, multifuel
    46 CJ-2A, rough
    45 Willy MB, 426468

  4. #34
    Blind squirrel rehabiltator Speddmon's Avatar
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    Gimp, that bigger head that I posted a picture of, is rated at I think 45 CFM at 175 PSI, of course more at a lower pressure because it doesn't have to work as hard (that's from the manufacturers website). The one on my compressor is just like it only a different manufacturer. It does not have one large and one small cylinder like you're used to seeing on most 2 stage compressor heads. This thing is definitely made to handle a large volume of air.

    Looking at the measurements that stretch posted, my blaster is a little smaller than the one you guys have. We use this same model at work with 1/2 inch pipe for the nozzle, just take a vice and squeeze the nipple until it starts to flatten out some and you'll get a better "spray" with it. Of course, with "plant" air it is hard to tell how much CFM it uses with a 1/2 inch pipe. The regular ceramic nozzles and dead man valve help to limit the needed CFM. Even with the beast of a compressor and blaster like you guys have that's really what you should be using. I've used blasters both ways, with the 1/2" pipe and the correct nozzles...it deosn't slow you down too much, if at all, you get finer control with the smaller nozzles too.

    Edit;
    Quote Originally Posted by gimpyrobb
    That bigger comp. is probably about 30 cfm. When it comes to volume a single stage with multiple pistons is all thats needed. The 2 stage with one larger and one smaller piston is what creates the higher psi numbers. It is kind of important to know the min. HP numbers needed to run a compressor head. I'd look for one of the surplus "standard" military motors to put on it, probably the 4cyl one. 4a032 model I think.
    The compressor in my lube trailer is rated at 27 CFM, and it's the style you're thinking of with one large and one small cylinder...the one on my large compressor is waaayyyy bigger than the lube trailer one.
    Last edited by Speddmon; 07-26-2009 at 19:19.
    Quote Originally Posted by Recovry4x4 View Post
    That's why I knew the answer and you didn't. I read the kindling.
    He is "anti-doghead".

    Even a blind squirrel finds an acorn every now and then!



    1970 M35A2 "The Stone Wagon" SOLD
    1985 M1028/M1031 w/700R4 "Road Oiler"
    MEP-003a 3000 hrs
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    1964 Case 530CK "Construction King" Backhoe/loader "Yard Oiler"

    MEP-002a & MEP-003a Spin-on oil filter kits are still 4 sale in the classified section

  5. #35
    LLM/Member 785 Recovry4x4's Avatar
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    Was that a Ford Fairmont in the background? Nice blasting outfit. You guys are just going to have to move closer together.
    1986 M1008
    1984 M1031
    1984 M1010

  6. #36
    4 Star General NDT's Avatar
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    OK, one more postscript to this thread, I noticed you had the compressor in the shed, well after painting mine, I thought it was a good idea to keep it in the shed, too. Just run the hose outside and blast whenever . . . Well I didn't think that one through. My rig has the Bullard 88 hood, that uses filtered air from the compressor. I had been blasting for about an hour, when I started to get sleepy. Well blasting is a bit of a boring activity so I just shook it off. Well I started to get even more sleepy, so I had to stop for a break. All of a sudden I could not stand up anymore. All I could do was lie down on the ground. Little by little, I started to feel better. Well the more safety conscious among us will already know, "you idiot you poisoned yourself with carbon monoxide". Yup but with the Almighty looking out for me as usual, I lived to tell about it this day . . .

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  8. #37
    Blind squirrel rehabiltator Speddmon's Avatar
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    I was doing some research on my blaster. I have an older model ALC blaster, made right here in the good old USA. It's a 250# blaster, meaning it holds 250 pounds of media for those who didn't already know. Using the measurements in Stretches pictures, the one you guys have is probably a 350# or 400# blaster. I also found some "average" nozzle size/flow rates for ya.

    1/8" nozzle uses 24 CFM at 90 PSI and 26 CFM at 100 PSI
    5/32" nozzle uses 43 CFM at 90 PSI and 47 CFM at 100 PSI
    3/16" nozzle uses 53 CFM at 90 PSI and 58 CFM at 100 PSI

    Your 1/2" pipe would use about 376 CFM at 90 PSI and 412 CFM at 100 PSI, so it's no wonder your compressor was running full out.
    Quote Originally Posted by Recovry4x4 View Post
    That's why I knew the answer and you didn't. I read the kindling.
    He is "anti-doghead".

    Even a blind squirrel finds an acorn every now and then!



    1970 M35A2 "The Stone Wagon" SOLD
    1985 M1028/M1031 w/700R4 "Road Oiler"
    MEP-003a 3000 hrs
    MEP-003a 1500 hrs
    1964 Case 530CK "Construction King" Backhoe/loader "Yard Oiler"

    MEP-002a & MEP-003a Spin-on oil filter kits are still 4 sale in the classified section

  9. #38
    dumpsterlandingfromorbit! gimpyrobb's Avatar
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    The comp. is stored in the basement of thr big barn. It isn't used inside. We had thought about plumbing the intake and exhaust through the wall so it could heat the shop, but doubt it'll happen.

    Yes Kenny, he has 2 or 3 of them(ferds).

    Yes we are going to get a correct nozzle, just used the pipe to see how it worked.
    Don't worry about the size difference

  10. #39
    dumpsterlandingfromorbit! gimpyrobb's Avatar
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    Oh, the comp is a 190 cfm unit.
    Don't worry about the size difference

  11. #40
    General Barneyszoo's Avatar
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    My first post, need some info on the bushings on the leaf spring ends. Also need to replace the seals on the front axle. Any help would be great.

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