Jung HF50 switch
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  1. #1
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    Default Jung HF50 switch

    Hello all,

    I have a problem with my Jung HF50 surface grinder.
    The switch that reverses table direction in the y axis is broken.
    I tried finding an original replacement, but they are not made anymore. Also Jung doesnt have them for sale anymore.
    Now I tried a setup with a relais 2NO 2NC and this works, but I rather would have a limit switch.

    Does anybody know a type of limitswitch that is DPDT? 2NO 2NC. Plunger type.
    I need to switch 4 contacts at the same time.

    Would be nice to have a link to a european supplier.

    Of maybe someone had this problem before and knows of another solition.

    Thanks and greetings,

    Peter


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  2. #2
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    Quote Originally Posted by Plusminus View Post
    Does anybody know a type of limitswitch that is DPDT? 2NO 2NC. Plunger type. I need to switch 4 contacts at the same time.

    Would be nice to have a link to a european supplier.

    I'm not sure if this is helpful, but I looked at the Conrad site and found a couple that might do what you want:

    Conrad - your online shop for electronics, computing, multimedia, model building and technology

  3. #3
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    Default Jung HF50 switch

    Thanks for the link Ballen.
    I am not sure, but i think this is not switching 2 times normally open and two times normally closed.
    I’ll post a photo of the originals i have.
    Its basically two switches, the upper one switching the bottom one at the same time.
    What i am looking for is these two switches in one housing.

    img_0054.jpg

    Greetings Peter




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  4. #4
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    Simple Bolt 2 of the ones pictured on a piece of sheetmetal

    With many of those switches thats possible

    Another Peter also proud owner of a Jung

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    Have a look on page 16 of this document:

    https://sensing.honeywell.com/honeyw...04955-5-en.pdf

    Unfortunately they are not plunger. But would this do? I think you may have to be a machinist, meaning attach two switches together yourself.

    PS: the verb in English for mechanically attaching several switches together in parallel is "to gang". So these would be called "ganged microswitches".

  7. #6
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    Quote Originally Posted by Peter from Holland View Post
    Simple Bolt 2 of the ones pictured on a piece of sheetmetal

    With many of those switches thats possible

    Another Peter also proud owner of a Jung
    Peter, you mean the ones I pictured?
    Those are broken. Or can most limit switches be coupled like this?

    By the way, do you happen to know why Philips used the smaller cone on the spindle?

    Greetings Peter, also from the Netherlands


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    Quote Originally Posted by ballen View Post
    Have a look on page 16 of this document:

    https://sensing.honeywell.com/honeyw...04955-5-en.pdf

    Unfortunately they are not plunger. But would this do? I think you may have to be a machinist, meaning attach two switches together yourself.

    PS: the verb in English for mechanically attaching several switches together in parallel is "to gang". So these would be called "ganged microswitches".
    I will have a look at the page. I am not really an electrics guy. Also space is limited. Its mounted in a tight cavity in the machine.
    But I have more options now and know what to look for.
    Thanks again


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  10. #8
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    Philips used smaller cones because they wanted to use the flanges from machines they already had
    So to make flanges interchangeable between different machines

    Peter

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    Default Jung HF50 switch

    Took Some time, but the repair had been done.
    I made a new plate that holds the components i made to actuate the switches i bought( I used the Innerworks of a telemecanique zck)
    Here are some pics of my solution. It works perfect again.

    img_0079.jpg
    img_0080.jpg
    img_0081.jpg
    img_0082.jpg

    Greetings,

    Peter



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  13. #10
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    It wasnt that hard to figure out then

    Peter

  14. #11
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    Quote Originally Posted by Peter from Holland View Post
    It wasnt that hard to figure out then

    Peter

    Not when i knew what switch to use.


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