Is KELING NEMA23 KL23H2100-50-4B really 570oz.in?


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Thread: Is KELING NEMA23 KL23H2100-50-4B really 570oz.in?

  1. #1
    Registered bonmotwang's Avatar
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    Default Is KELING NEMA23 KL23H2100-50-4B really 570oz.in?

    Just reading the spec from KeLing's new website. I am looking for a NEMA23 570oz.in step motor for CNC BF20L.
    But I found a torque curve chart, the max torque is about 3N.m, 423oz.in.
    A little confused here.
    I attached the chart here.
    Any body can explain what does the 570oz.in in the spec really mean?

    Thanks

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    Gold Member doorknob's Avatar
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    The 570 oz-in rating would be a "holding torque", that is, the rotor should not rotate if a torque of 570 oz-in is applied. The holding torque is generally greater than the available torque when the motor is turning. The torque curve that you included in your post starts at 100 rpm, so the 0 rpm holding torque is not plotted.

    If I did the conversion correctly, 570 oz-in is about 4.0 newton-meters. So it is not out of the question that that would be the holding torque of the motor for which the torque curve was given.



  3. #3
    Registered James Newton's Avatar
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    What doorknob said. If you are trying to figure out what size stepper you need for a given load, this web page may help: techref.massmind.org/techref/io/steppers.htm#Estimating

    James hosts the single best wiki page about motors for CNC hobbyists on the net:
    http://techref.massmind.org/techref/io/motors.htm Disagree? Tell him what's missing! ,o)


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Is KELING NEMA23 KL23H2100-50-4B really 570oz.in?

Is KELING NEMA23 KL23H2100-50-4B really 570oz.in?