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Thread: CNC for medical Screws

  1. #1
    Member Omar1409's Avatar
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    Default CNC for medical Screws

    Hello

    Im looking for a CNC machine for medical screws and im confused between DMG mori Sprinter 20-8, Tornos Evo Deco 20 and Haas

    DMG and Tornos are expensive and Haas is affordable,
    my desired Screws
    Diameters between 2 and 10 mm
    Length between 4 and 100 mm

    Material Titanium grad 5

    can you please recommend us a machine from the 3 of the above or even other brand, The machine must be able to do self tapping Locking screw so that it can be screwd in Bone and Plate.

    Thank you

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    Attached Thumbnails Attached Thumbnails CNC for medical Screws-self-tapping-locking-screws-diameter-5mm-700-a   CNC for medical Screws-68935-13799893-jpg  


  2. #2
    Member peteeng's Avatar
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    Default Re: CNC for medical Screws

    Hi - You may be able to machine them but you won't be able to forge the socket? They are rolled threads to improve strength, cut threads are not as strong. Plus don't they have to be certified? Why don't you buy them? cheaper then buying a mill? Peter



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    Member mactec54's Avatar
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    Default Re: CNC for medical Screws

    Quote Originally Posted by peteeng View Post
    Hi - You may be able to machine them but you won't be able to forge the socket? They are rolled threads to improve strength, cut threads are not as strong. Plus don't they have to be certified? Why don't you buy them? cheaper then buying a mill? Peter
    The threads are done by thread whirling and the socket what ever shape are cut on the machine also here is a video


    https://www.youtube.com/watch?time_c...&v=FAd9NyB-6ko

    Mactec54


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    Member mactec54's Avatar
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    Default Re: CNC for medical Screws

    Quote Originally Posted by Omar1409 View Post
    Hello

    Im looking for a CNC machine for medical screws and im confused between DMG mori Sprinter 20-8, Tornos Evo Deco 20 and Haas

    DMG and Tornos are expensive and Haas is affordable,
    my desired Screws
    Diameters between 2 and 10 mm
    Length between 4 and 100 mm

    Material Titanium grad 5

    can you please recommend us a machine from the 3 of the above or even other brand, The machine must be able to do self tapping Locking screw so that it can be screwd in Bone and Plate.

    Thank you
    You are looking at the wrong machines, you want a swiss type screw machine for these parts, here is just 3 of the main manufactures of these multi axes machines, your parts could be made on other multi axes machines but would not be as efferent as this type of machine

    Citizen

    Brother

    Tsugami

    Mactec54


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    Member peteeng's Avatar
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    Default Re: CNC for medical Screws

    Thks mactec - haven't seen broaching like that before, very cool. Peter



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    Member tjm229's Avatar
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    Post Re: CNC for medical Screws

    Hi

    I would go with either a Tornos, Citizen L20 or Star SR20 if you want to get into the medical sector. Parts are required to be close tolerance from my own experience with excellent surface finishes. A sliding head machine (Guide Bushed) will give you the best shout at achieving this. Also, with the amount of tool stations available on these machines you can swith from part to part quickly with minimal changeover times.

    Have a look ath the spec of sliding head machines we run at our company here for more info:

    https://www.mmturnedparts.co.uk/plant-list/

    Hope this gives you a bit more insight.

    Kind regards

    Tim M



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