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  1. #1
    Veteran Member Code54's Avatar
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    Putnam Co. West Virginia
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    Kubota MX5100, Kubota BX25D, MULE Fxt Pro

    Default Sand Blaster clogging - need help

    I bought some of the Black Diamond "sand" (think it is 20/40) from Tractor Supply and am trying to use it in a 110lbs Harbor Freight pressured pot sand blaster (and tried a smaller 40lb one also) and it just keeps clogging. I mean before I can blast a single inch. I tried several different tips (think it went to 3.5mm) on a dead man style gun (also tried a ball valve gun) and no luck. The stuff keeps clogging.. any ideas on what I need to do. I been running more than enough air and pressure (took it to max pressure and still no luck).
    I am doing larger implements so I have to do it outside and can't use a blast cabinet so I can't really use the more expensive media types.
    Thanks
    Kubota MX5100
    Kubota BX25D
    85 Mule 500
    Mule FXT Pro

  2. #2
    Veteran Member buck12's Avatar
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    May 2006
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    1,216
    Location
    NW Mississippi
    Tractor
    Mahindra 2615

    Default Re: Sand Blaster clogging - need help

    It may be a moisture problem.

  3. #3
    Super Member flusher's Avatar
    Join Date
    Jun 2005
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    6,516
    Location
    Northern California-Tehama Co.
    Tractor
    2008 Mahindra 5525, 1964 MF-135 diesel, 1951 Farmall Super A, 1951 Minneapolis Moline BF, 1945 Oliver 60 Row Crop, 1949 JD B widefront

    Default Re: Sand Blaster clogging - need help

    Quote Originally Posted by Code54 View Post
    I bought some of the Black Diamond "sand" (think it is 20/40) from Tractor Supply and am trying to use it in a 110lbs Harbor Freight pressured pot sand blaster (and tried a smaller 40lb one also) and it just keeps clogging. I mean before I can blast a single inch. I tried several different tips (think it went to 3.5mm) on a dead man style gun (also tried a ball valve gun) and no luck. The stuff keeps clogging.. any ideas on what I need to do. I been running more than enough air and pressure (took it to max pressure and still no luck).
    I am doing larger implements so I have to do it outside and can't use a blast cabinet so I can't really use the more expensive media types.
    Thanks
    I've tried those HF pressurized blasters--they clog almost immediately.
    I use a cheap abrasive gun from TSC

    Clarke Hand Held Abrasive Blaster - 3907845 | Tractor Supply Company

    and the black diamond grit. Works a lot better than that HF POS.

  4. #4
    Silver Member
    Join Date
    Jul 2004
    Posts
    226
    Location
    NE Pennsylvania
    Tractor
    Deere 4320 & Kubota 7510

    Default Re: Sand Blaster clogging - need help

    Quote Originally Posted by Code54 View Post
    I bought some of the Black Diamond "sand" (think it is 20/40) from Tractor Supply and am trying to use it in a 110lbs Harbor Freight pressured pot sand blaster (and tried a smaller 40lb one also) and it just keeps clogging. I mean before I can blast a single inch. I tried several different tips (think it went to 3.5mm) on a dead man style gun (also tried a ball valve gun) and no luck. The stuff keeps clogging.. any ideas on what I need to do. I been running more than enough air and pressure (took it to max pressure and still no luck). I am doing larger implements so I have to do it outside and can't use a blast cabinet so I can't really use the more expensive media types.
    Thanks
    You posted this quote before I could! Same equipment, same problems. I bought it new in Sept. and have yet to get it to work with out clogging. However, I've not had the time to fool with it since Sept. It's NOT moisture or oil.
    regards,
    Steve

  5. #5
    Silver Member
    Join Date
    Jun 2006
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    175

    Default Re: Sand Blaster clogging - need help

    I feel your frustration because I also have a pressurized sand blaster and also have the clogging issue. At the bottom of the sand blaster tank there should be a valve to regulate the rate of sand flow that enters the hose. Try closing this valve while opening the blasting nozzle then slowly open the sand flow valve. I have found that too much sand entering the hose causes it to the nozzle to clog or the hose to clog.

    Also, moisture in the air is a big problem. I hate to discourage you, but if I have a big sand blasting job I just take it to a commerical sand blaster.

  6. #6
    Gold Member CCWKen's Avatar
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    Mar 2005
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    326
    Location
    South Texas, USA
    Tractor
    Ford 3910, JD 420C, Kubota G32XKS

    Default Re: Sand Blaster clogging - need help

    Ditto what Wrenchturner says but first try to clear the hose by opening the cap and blowing air through the hose (reverse feed). It's not uncommon to get a stone or foreign matter in a bag of media. I run a 300lb. pressure tank with a 1/4" nozzle and still have to clear it once in a while.

  7. #7
    Veteran Member Code54's Avatar
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    Location
    Putnam Co. West Virginia
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    Kubota MX5100, Kubota BX25D, MULE Fxt Pro

    Default Re: Sand Blaster clogging - need help

    Thanks for the info! I do have two moisture traps on the line. One off the compressor and one on the pressure blaster itself so that SHOULD (lets hope) not me a problem. It does seem to jam up at the valve sometimes and I am not sure why but I didn't hold the gun open while trying it (I will not)
    Also thinking it is just too course of a media for that unit to throw?????
    Kubota MX5100
    Kubota BX25D
    85 Mule 500
    Mule FXT Pro

  8. #8
    Silver Member
    Join Date
    Mar 2008
    Posts
    208

    Default Re: Sand Blaster clogging - need help

    There's a valve on the bottom of the tank to control material flow. It only has to be cracked. If it's opened too far the air pressure in the pot will push too much material into the line. Same for the valve letting air into the pot, though that's not as critical.

    That's a good sized sandblaster and will need a LOT of air flow. If you don't have a big compressor it won't keep up causing problems.

  9. #9
    Veteran Member SpringHollow's Avatar
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    Dec 2006
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    1,714
    Location
    South of Rochester, NY
    Tractor
    Power Trac 1850, NH 2120

    Default Re: Sand Blaster clogging - need help

    Mine clogged because of moisture. I had a couple of large water separators in line but that was not enough. I could see clumps of wet sand. It became obvious that i needed a dryer.

    Ken
    PT1850, mini hoe, grapple, stump grinder, brush hog

    http://www.usadiscountgenerators.com...T1850Home.html

  10. #10
    Gold Member Dave5264's Avatar
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    May 2009
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    336
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    Near North Ontario Canada
    Tractor
    08 Montana C5264, 2011 McCormick CX100 XS

    Default Re: Sand Blaster clogging - need help

    I have one I hardly use for this exact reason. I have to sift & dry the sand in advance, If i use it from the bag it clogs 1) moisture and 2) some particles are too big for the nosle
    Montana 5264 4wd Tractor with FEL

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