Hardinge HLV-H-434 head stock question
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  1. #1
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    Default Hardinge HLV-H-434 head stock question

    That is the largest diameter that will pass though the headstock on this lathe?

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    Quote Originally Posted by sparky30_06 View Post
    That is the largest diameter that will pass though the headstock on this lathe?
    If you take the drawbar out, the max ID is the OD of the shank of a 5C collet.

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    Quote Originally Posted by sparky30_06 View Post
    That is the largest diameter that will pass though the headstock on this lathe?
    Not familiar with the -434 is that a special version with a special collet, 16C perhaps? My HLV-H and HXL use the same spindle bearings so I guess it is possible that Hardinge built a couple of odd ball HLV-Hs. I know they built one with an extra long bed for threading lead screws.

    If as Jim suggested this is a 5C designation, a smidgen under 1-1/4 would be the largest through the headstock with the key removed. And I would not remove my key for any use that I could think of. I know I have turned 1-1/8 without removing the key and using a 3 jaw chuck. Not sure what the upper limit is without removing the key is, maybe 1-3/16?
    With a collet 27 mm or 1-1/16 .
    Last edited by FredC; 06-17-2021 at 11:38 AM.

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