Retrofit of an EMCO 120 CNC lathe - Page 3


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Thread: Retrofit of an EMCO 120 CNC lathe

  1. #25
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    Default Re: Retrofit of an EMCO 120 CNC lathe

    Quote Originally Posted by mukanico View Post
    I had to increase the VFD max. frequency to 83Hz to reach the original 4000rpm max. spindle speed but the additional low end torque is quite useful. Thanks!
    That's great. Must have 1:1 pulley ratio? Compact 6 is 80%.



  2. #26

    Default Re: Retrofit of an EMCO 120 CNC lathe

    Hi,

    I don't remember what are the pulley diameters, but the new motor is rated at 2845rpm@50Hz, so the pulley ratio should be around 85%.

    Cheers

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Retrofit of an EMCO 120 CNC lathe

Retrofit of an EMCO 120 CNC lathe