L & S Powerturn 12" 4j chuck
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  1. #1
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    Default L & S Powerturn 12" 4j chuck

    Hgr had several Powerturn lathes listed, the non attached chucks were separated as they do and listed for sale.
    The example here was first listed at $349, then 300, 249, finally $199. With truck shipping 122lbs it cost $325, a 12" Cushman direct mount steel chuck



    This is the worst one, of other chucks I have bought from hgr. It did take 6+ hours to clean it up.




    The backside shows it is a solid steel chuck, intended for machines like the 20hp+ L&S Powerturn heavy duty lathes. There is minimum flex in this style of chuck.
    I was informed by a local old timer that these were also called convertable chucks, the six cam lock pins can be removed, and the chuck will attach to an A type spindle nose, with 4 bolts. The drive pin hole can be seen.



    I did have a model 1610 Powerturn lathe I used for over 20yrs, I sold it many years ago, and regret losing the identical Cushman chuck, but feel very lucky on this deal.


    The jaws have an aggressive pattern, that I found grips castings well.

    If some do observe the hgr sales, I just bought the 8" Buck 6jaw, a modern steel body model, with 2 piece jaws, for their reduced price of $159!
    There has often been chucks for Monarch ee, and Hardinge, listed at hgr.

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  3. #2
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    Nice chuck. What do you use for cleaning them up?

  4. #3
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    I used a mix of acetone, and atf fluid, using a brass brush. Some how there is a chemical reaction with those three items.
    It helps if the metal is warm.

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    I really DO like 4 J ind' chucks with tee slotted bodies.

  7. #5
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    The T slots really help on holding castings, and other repair work.
    This company lets many things go cheap, but overprices other items.

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  9. #6
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    Quote Originally Posted by donie View Post
    The T slots really help on holding castings, and other repair work.
    This company lets many things go cheap, but overprices other items.
    Back in the day I used them on production work - with various stop and step blocks etc etc meant only 2 jaws to hold parts repeatedly and more securely than a Yorkshireman's wallet

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  11. #7
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    I can see how using stop blocks would work well for repeated work set ups. The T slots seem to be on 12" and up Cushman chucks, but not all of them have it.
    The prices from hgr, are half or less of what the ebay, or dealers are asking. But, one must look often, the stock rotates quickly.


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