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harbour freight sandblaster

Discussion in 'The Hokey Ass Message Board' started by jesdude, Jan 8, 2013.

  1. jesdude
    Joined: Apr 26, 2012
    Posts: 151

    jesdude
    Member

    Has anyone ever built a shaker from something around the house for their pressure pot sandblaster tank? I have heard of strapping a palm sander to the side of it but I really don't think that will be strong enough for the size tank I have. I am using fine/extra fine black beauty in my harbour freight 110 lb tank and it works pretty good for 30 seconds and then clogs at the media valve on the bottom of the tank. I hit it with a rubber mallet or close and open the media valve again and it will spray again temporarily. The media bag says that it doesn't absorb moisture and I shouldn't have to sift it because it is already pretty fine stuff. i'm using the 1/8" nozzle and all the ball valves on the unit are 3/8". I start by opening the air inlet valve all the way to pressurize the tank and then back it off 1/4 of the way to keep the gauge reading about 90 psi, then open the air valve on the mixer fitting at the bottom of the tank all the way. Then I pull the trigger at the nozzle to let the air flow and slowly open the media valve to about 1/2 which seems to work the best...when it works haha. That's the best way to start it up I believe. I know it would work more consistently if I just had something shaking it.
     
  2. modelamotorhead
    Joined: Dec 24, 2011
    Posts: 470

    modelamotorhead
    ALLIANCE MEMBER

    :mad:Bought the same tank, tried the same stuff you did, took the dang thing back to HF. End of story....:)
     
  3. jimbousman
    Joined: Jul 24, 2008
    Posts: 541

    jimbousman
    Member

    I have the same HF pressure pot blaster. There are two things I do to keep the line from plugging. (A) I pressurize the tank. Then I open the line valve first to blow out the line then I slowly open the sand trap valve until the media starts coming out. I normally do not open it all the way. I get plenty of media without plugging the line. (B) I make double sure I sift the media ( I also use fine/extra fine black beauty.) Despite what they say I find enough crap in the stuff to plug the line. Now my only problem is the rubber feed hose took a crap and started to leak. Damn near ripped a hole in my ankles before I got it shut down.
     
  4. BigChief
    Joined: Jan 14, 2003
    Posts: 2,045

    BigChief
    Member

    +1 on bousman's process.
     
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  5. 59Apachegail
    Joined: Apr 30, 2011
    Posts: 1,134

    59Apachegail
    Member
    from New York

    Mc-Masters sells inline air filters. Railroads use them to keep compressor oil out of the horns.
    They look like plastic in-line fuel filters. They should help prevent the soda from binding in the nozzle and they are pretty cheap.

    http://www.mcmaster.com/#inline-air-filters/=ky436e

    about half way down the page
     
    Last edited: Jan 8, 2013
  6. jesdude
    Joined: Apr 26, 2012
    Posts: 151

    jesdude
    Member

    thanks jimbousman. Can I ask what material you use for a sifter? I tried a window screen I had laying around at one point during setup but that doesn't have small enough holes so I just poured the media in thinking it should work anyway since it's the fine stuff. and how far do you think you open your media valve normally?
     
  7. budd
    Joined: Oct 31, 2006
    Posts: 3,479

    budd
    Member

    i use the same process of turning the air on first and then the media, i used my toe to turn the media on but that was not always easy, so a couple of weeks ago i made a handle that controls the media, works great, i also removed the deadman switch and replaced it with a ball valve when the blaster was new, another change was a quick release coupler so if something does block the nozzle it only takes a second to clear it out, i keep a short piece of welding rod in my pocket to clear any stuck pieces from the nozzle, my next upgrade will be to remove the brass plug from the lower T and replace it with a 90 degree elbow and a ball valve as moisture seems to collect there, the last thing is to make a cover for the top that will keep anything from falling inside when i'm not useing my blaster, a mouse fell in once and it took awhile for the bones to come out.
     

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    Last edited: Jan 8, 2013
  8. spooler41
    Joined: Feb 25, 2007
    Posts: 1,099

    spooler41
    Member

    I don't have a HF tank blaster, but I did add a vibrator to my 30X48 blast cabinet. the
    vibrator I used came off of a hospital bed. It cured the feed problem I was having with my set up,I just bolted it to the front of the recovery bin and wired it to the light switch.
    It keeps the media from sticking to the walls and keeps the pick up covered with blast
    media.

    ..............Jack
     
  9. budd
    Joined: Oct 31, 2006
    Posts: 3,479

    budd
    Member

    thats a great idea. i picked up a couple hospital beds for the geardrive motors and saved the vibrators, now i have a use for them.


     
  10. I have one it's CRAP.:rolleyes:
    Come and get it
    Alpine Ca San Diego
     
  11. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    A lot of sandblaster problems come down to damp media. When you buy the bags of sand and dump it out the sand is always very cool and damp. If you spread it out on a tarp and put it out in the sun for a while it will dry out and feed much better.

    We have a problem here in Florida with humidity and keeping the sand flowing is a problem.

    Don
     
  12. GearheadsQCE
    Joined: Mar 23, 2011
    Posts: 2,157

    GearheadsQCE
    ALLIANCE MEMBER

    In Michigan we have humidity but this time of year we have no sun either.
     
  13. Dry media is the answer...I have used my HF blaster for several years and only had to replace the nozzles from wear and the ball valve at the end of the discharge hose,
    the sand finally wore a hole in the side of it..I do have a good water trap on my compressor...Helps tremendously
     
  14. jesdude
    Joined: Apr 26, 2012
    Posts: 151

    jesdude
    Member

    The compressor i'm using is about a 50 or 60 gallon and it has a large water trap on it and then there is another water trap on the sandblaster tank itself that it came with so it seems to be doing a good job, plus i don't see little droplets on my parts when i'm blasting or turning the nozzle on or off. I really think a homemade shaker of sorts will fix the issue since it's always clogging at the media valve and not the nozzle.... any ideas on what i could tear apart? haha
     
  15. noboD
    Joined: Jan 29, 2004
    Posts: 6,930

    noboD
    Member

    Try leaveing a light on in the cabinet, to take out the moisture. Should have bought a TIP blaster.
     
  16. 2x Don's Hot Rods....big blue tarp to dry it and fine screen to sift it
     
  17. budd
    Joined: Oct 31, 2006
    Posts: 3,479

    budd
    Member

    i ran some play sand in my blaster last week just to try it, the dust cloud was unreal, back to recyclied glass.
     
  18. Dan in Pasadena
    Joined: Sep 11, 2009
    Posts: 840

    Dan in Pasadena
    Member

    That stuff is DANGEROUS to your
    lungs!
     
  19. i like a worn out nozzel, it never plugs and cut the blast velocity and no warpage

    sold my TIP and kept the HF use it for light car stuff
     
  20. jimstro16
    Joined: Dec 15, 2009
    Posts: 239

    jimstro16
    Member

    My HF drove me crazy for about a month trying to figure out why it was clogging up. Jimbous has the process right on. It took me a while to figure that out but once you run the thing that way it works fine and shouldn't need a vibrator. I can only use fine black sand and I always cover the top when its stored. Dang squirl got in garage one time and dropped half a walnut in the tank. Took a little while to find that one.
     
  21. evintho
    Joined: May 28, 2007
    Posts: 1,218

    evintho
    Member

    I have the same HF 110 lb blaster. I don't believe a shaker is necessary. For the most part the answers have already been stated. I'm using an I/R 5hp 80gal compressor. I limit my air at the blaster to about 65psi. I open the media valve a little more than halfway and I also use BlackBeauty. Can't remember for sure but I think mine may have been the coarser stuff - 80grit? I don't bother to sift it and it doesn't clog. As stated, dry air is key. I run a trap 2' off the compressor followed by the below homemade contraption, followed by the blaster trap. Not a drop of moisture gets through! The last blast I ran through 3 tanks of BlackBeauty and no clogging whatsoever.

    [​IMG]
     
  22. indyjps
    Joined: Feb 21, 2007
    Posts: 3,576

    indyjps
    Member

    Used to have a bucket blaster, I used a $2 potato masher, stuck it in the siphon bucket before filling, filled half way, if I got a clog I,d shake the potato masher handle and media would start flowing again. Bought a pressure pot, works great, not harbor freight but pretty close
    I had problems when I filled the bucket all the way, never worked right
     
  23. I have one of the old Harbor Freight blasters and I never have any problems buy I use designated fine sand blasting sand,,I keep it dry and I have a air dryer the keeps the moisture from the compressor out of the lines. HRP
     
  24. jimstro16
    Joined: Dec 15, 2009
    Posts: 239

    jimstro16
    Member

    Tractor supply center fine sand is only about $8 for a 50lb bag. Has to be fine grit thought, any others clog up.
     
  25. earlytimes
    Joined: Jul 31, 2011
    Posts: 7

    earlytimes
    Member

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