Hard rock sampling mill Without the hard work
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  1. #1
    us
    Gold Tramp

    Dec 2012
    1,048
    1998 times

    Hard rock sampling mill Without the hard work

    I have plans for a very easy to make rock grinder, I use this to grind very fine gold with excellent results.
    its more of a sampleing mill, it runs a 5 gallon bucket of clasified ore each run. it will run 5 buckets a day.

    To see pictures get me an email at bbgminingco@hotmail.com I cant figure out how to get pics on to this site.

    This machine can be electric or gas for field use. I can get the intructions if anyone is intrested in making a unit like this.

    good luck n happy hunting Cpt Herb

  2. #2
    us
    Feb 2012
    Prather CA
    Whites GMT
    2,807
    3351 times
    Finding GOLD
    In the bottom right click on go advanced. Scroll down and click on manage attachments. and upload your files. Here are some old workings up in the motherload we have been working. Would love to see your photos
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    dirtwizard and John_Arizona like this.
    "The most inspiring thing about gold, is not the value, but under magnification, the true beauty of each piece. They are truly like snowflakes that never melt." Oakview2 Fly EAGLE Fly......

  3. #3
    us
    Gold Tramp

    Dec 2012
    1,048
    1998 times

    pics of my ball mill

    Attachment 722712Attachment 722713Attachment 722716

    Thanks for the help I was lost, let me know what ya think of my setup. The wind is blowin heck today and im stuck at home with the grandson. ( Mining the internet )

    good luck n happy hunting Cpt Herb
    TerryC, Gelmac, Oakview2 and 1 others like this.

  4. #4
    us
    Feb 2012
    Prather CA
    Whites GMT
    2,807
    3351 times
    Finding GOLD
    Are those metal balls in the mixer? How small or large of material do you start with, how long do you run it, and what size material do you end up with...
    Thanks for the photos, i enjoy your web site and blog....
    "The most inspiring thing about gold, is not the value, but under magnification, the true beauty of each piece. They are truly like snowflakes that never melt." Oakview2 Fly EAGLE Fly......

  5. #5
    us
    Gold Tramp

    Dec 2012
    1,048
    1998 times
    This has to be the best method ive found to grind ore down as fine as you need. Most large companys use a ball mill in there finishing plant. Ive used a rod mill,impact mill, but this is the best bet for fine grind.
    Yes those are steel balls they are about 8lbs each i use 5 to grind a 5gallon bucket of 1/8 classified material.
    I try to break the ore up as small as i can while mining. It will handle 1/2 inch clasified but its hard on the tool. so 1/8 is best.

    Intructions
    5 gallon bucket or smaller depends on sample size.
    add water to cover ore not to much water. you want to end up making a slurry like a thin milk shake, thick enough to stay in your feeder.
    grind at least 30 minutes, longer for harder ores, less for small lots or soft ores
    No chunkys in finished product. check with fingers during grind. youll hear it in the machine when its done.

    Its basic simple way of getting your ore down as fine as needed, nice and clean and ready for mercury.
    If you have rich ore with sizable values, use gold wheel to concentrate then you dont have to use merc.
    For micro fine I use rp4 wave table and almagamate my cons.

    If you have any questions that i can help with let me know.
    Good Luck n Happy Hunting Cpt Herb
    Gelmac, Goodyguy and Sticks like this.

  6. #6
    Charter Member
    us
    Look at the Historical Gold Mining photo albums on my page

    Jan 2013
    Huntington, Or./ Stanton, AZ/ former Outlaw California Gold Dredger
    Tesoro Vaquero, Whites MXT, Vsat, GMT, 5900Di Pro, Minelab GPX 5000, GPXtreme, 2200SD, Excalibur 1000!
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    All Types Of Treasure Hunting
    I have friends that use that exact same set up. It works great, back when we were running the 8" dredges when I was a kid that's how they would crush and amalgamate the gold out the drums of cons. I basically have the same set up but on a much smaller scale today. I have a rock tumbler with 2" and smaller to ˝" steel balls in it. I fill it 1/3 full of cons, throw in the bearings, close the lid, then turn it on & come back in a day or so and it's powdered. Then throw it in the chosen separator of the day and take the gold out. It's easier than the mortar but I still like using Great Gramps Mortar & I can take it in the field anywhere.

  7. #7
    us
    Feb 2012
    Prather CA
    Whites GMT
    2,807
    3351 times
    Finding GOLD
    I am guessing some old track and field shot puts??
    "The most inspiring thing about gold, is not the value, but under magnification, the true beauty of each piece. They are truly like snowflakes that never melt." Oakview2 Fly EAGLE Fly......

  8. #8
    us
    Gold Tramp

    Dec 2012
    1,048
    1998 times

    nice guess

    Quote Originally Posted by Oakview2 View Post
    I am guessing some old track and field shot puts??
    lets see how long it takes to figuire out what they actually are.

    Cpt Herb

  9. #9
    us
    Feb 2012
    Prather CA
    Whites GMT
    2,807
    3351 times
    Finding GOLD
    If I didn't know better, I would think they were cannon balls, but I was trying to find something that could be easily and cheaply found these days...
    "The most inspiring thing about gold, is not the value, but under magnification, the true beauty of each piece. They are truly like snowflakes that never melt." Oakview2 Fly EAGLE Fly......

  10. #10
    us
    Gold Tramp

    Dec 2012
    1,048
    1998 times

    good guess try again

    Quote Originally Posted by Oakview2 View Post
    If I didn't know better, I would think they were cannon balls, but I was trying to find something that could be easily and cheaply found these days...
    Have to be a big cannon, not even close, Oak
    start asking around.

    Cpt. Herb

  11. #11
    us
    Feb 2012
    Prather CA
    Whites GMT
    2,807
    3351 times
    Finding GOLD
    And eight pounder was a common size for cannon, a devastating shot especially before the exploding cannon balls. I am out of options. I have been looking for a good used cement mixer, but I was thinking about using some large hardened river rocks. We do have quite a few of those outside of the desert
    "The most inspiring thing about gold, is not the value, but under magnification, the true beauty of each piece. They are truly like snowflakes that never melt." Oakview2 Fly EAGLE Fly......

  12. #12
    us
    Gold Tramp

    Dec 2012
    1,048
    1998 times
    Dont give up so easy Oak.
    Hint you would probably find one these out bleepin. And im sure lots folks have. and if you bleep long enough you probably will.

    I have some in the 2 lb range if you need a few. They dont grind as quik but they grind.
    as for river rocks you would just end up with smaller river rocks.

    Good Luck n Happy Hunting Cpt Herb

  13. #13
    us
    Feb 2012
    Prather CA
    Whites GMT
    2,807
    3351 times
    Finding GOLD
    Done a fair amount of beepin, but I problably would have blown my head off with a chunk of iron the large...
    gold tramp likes this.
    "The most inspiring thing about gold, is not the value, but under magnification, the true beauty of each piece. They are truly like snowflakes that never melt." Oakview2 Fly EAGLE Fly......

  14. #14
    us
    Sep 2012
    Oroville
    99.00 something or other from big 5
    179
    62 times
    I would go with Chevy chase (as fletch and say ball bearings everything's done with ball bearings these days.
    gold tramp likes this.

  15. #15
    us
    Gold Tramp

    Dec 2012
    1,048
    1998 times
    Quote Originally Posted by oldbrundogg View Post
    I would go with Chevy chase (as fletch and say ball bearings everything's done with ball bearings these days.
    not yet, ball bearing that big would be solid stainless i think.
    good luck n happy hunting Cpt Herb

 

 
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