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  1. #13
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    Sep 2006
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    229

    Re: 220V spindle on 110V?

    Quote Originally Posted by rs4race View Post
    Hi all I know this has been asked before, but I cant seem to find the information I'm looking for. I'm interested in getting a spindle with er16 for a benchtop mill (similar to a router in style) but I need to be compatible with 120V (US). The smallest spindle that I've found with er16 is 1500W and 220V. I saw that there are vfd's that will input 120V and output 220V but the claim is that performance is significantly decreased, but I haven't seen how much. Does anyone know how the performance is effected? I imagine its reduced torque, but not sure how this looks through the rpm range. I'm pretty happy with 200W cuts on my g0704, and this machine I would be happy with the same, but if I maxed out at 750W that would be enough for me.
    So if all you need is 750W at 120V with ER16 collets, then why not just buy an 800W 120V ER16 spindle. Do a search and several choices should be available. Most inverters appear to be 240V, but a few of them are 120V, especially in the 800W range.

    Steve

  2. #14
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    Dec 2013
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    158
    Good point Steve. Im having trouble finding 800W with ER16. Do you have any recommended sources?

    Quote Originally Posted by steve323 View Post
    So if all you need is 750W at 120V with ER16 collets, then why not just buy an 800W 120V ER16 spindle. Do a search and several choices should be available. Most inverters appear to be 240V, but a few of them are 120V, especially in the 800W range.

    Steve

  3. #15
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    Dec 2013
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    158
    Im just trying to figure out how this stuff works. Maybe I'm asking the wrong questions? Will it trip even if I limit the output current? How does the current limit work in the vfd? Does it just throw an error and stop the spindle or does it keep the spindle running and limit the current to what is set?

    Quote Originally Posted by mactec54 View Post
    Reduce the amperage you can but expect to smoke the spindle because it is not designed to run like that

    You don't know what dismal is, how else can one explain, you sure you want to be doing this, or are you just wasting our time

    I would suggest seeing you seen to know better, go ahead and buy the 2.2Kw 110v spindle and see for yourself, be aware if you try to run it from a normal 15 amp outlet expect that it will trip constantly

  4. #16
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    Sep 2006
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    229

    Re: 220V spindle on 110V?

    I see what you mean about limited options. I looked further and see mostly 800W 120V ER11 spindles or 1500W 240V ER16 spindles. Maybe you have to decide if ER16 is that important to you, then you may need to spring for a 240V power outlet. ER11 is plenty for me with my 800W spindle. I mostly use 1/8" and 1/4" router bits, but have a cheap collet set for the occasional random size bits. I think I purchased it from AliExpress. The price including shipping was slightly cheaper than EBay and they have a lot of vendors.

    I believe that the inverters operate similar to a current limiting power supply. They have voltage and current limits. They normally send out the target voltage, but reduce the voltage if the current is too high.

    Steve

  5. #17
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    Join Date
    Oct 2004
    Posts
    73

    Re: 220V spindle on 110V?

    @rs4race. Is running a 220v 1p line from the breaker box an option? If not, do you have access to dryer or stove 220v receptacle?

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