evil_lurker
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I think I figured out where Unit3d Nucl3ar gets their ball milz...
Was looking for tools and ran across something that looked strangely familiar to me...
http://www.unitednuclear.com/mills.htm
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnu...
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnu...
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The_Davster
A pnictogen
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The knobs on the cans are slightly different....
Yeah thats how I'll justify my buying of one of UN's for 100$CDN 6 years ago(when our dollar was weaker)
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bereal511
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Huh...I'm going to pretend I didn't see that and think $70 was a good deal for a ballmill....(shoots self in head).
As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life -- so I became a
scientist. This is like becoming an archbishop so you can meet girls.
-- Matt Cartmill
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egloskerry
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But they don't give you media.
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BromicAcid
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A lot of ball mills look alike, I mean, it's a good design and knockoffs predominate. I have ordered from harbor freight in the past and they sell
some good stuff, but a lot of it is low quality, break when you use it often, stuff. What I am saying, is that unless you know the brand United
Nuclear is carrying, and you know the brand Harbor freight is carrying, then you really can't say they are the same. Although they certainly look
similar. I'm giving United Nuclear the benefit of the doubt here.
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joeflsts
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I have been thinking about buying one of these for some time. I did a quick check and UN's price is about $5 to 10 more, depending on the meda than
buying seperately, before shipping.
It does appear that they are basically the same mill. I have used Harbor Freight stuff for both home and professional use and while it isn't Snap-on
quality some of it isn't bad.
Joe
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evil_lurker
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Upon closer inspection, the jars do look slightly different. But if you look at the two barrel mill from HF, the barrels are identical.
Ceramic media on Ebay is cheap... $22 worth would fill up both barrels. So are chrome bearings... 100 1/2" bearings are IIRC less than $20 (minus
shipping of course).
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egloskerry
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Just a thought...how long would it take to process 5lb of KMnO4 in that dual 3lb one with lead media to a fine sugar consistency?
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evil_lurker
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You can buy it like that already at www.thechemistrystore.com or use a simple $15 coffee grinder (which works pretty good for turning aluminum "curls" into course flakes BTW).
I dislike lead in ball mill for the simple fact that most of its pretty soft. Steel bearings or ceramic media would accomplish the goal in less than
half the time without worries of lead contamination (which may or may not be an issue).
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Sauron
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My recollection is that handloader/reloaders of ammunition use ball mills with very mild media to clean and polish once-fired brass cartridge cases
prior to decapping, repriming etc.
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