Electronics > Manufacturing & Assembly

Kynar strippers to strip 7/0.2mm wire

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Faringdon:
Hi,
I was round at our customers'...and they were using  their kynar wire strippers to strip 7/0.2mm wire...and all their kynar strippers are now blunt.

Kynar strippers
https://uk.farnell.com/jokari/40024/wire-stripper-36awg-26awg-0-12mm/dp/2613948

Please can you confirm that  kynar wire strippers should never be used to strip 7/0.2mm wire?

jpanhalt:

--- Quote from: Faringdon on December 03, 2022, 11:17:35 am ---
Please can you confirm that  kynar wire strippers should never be used to strip 7/0.2mm wire?

--- End quote ---

1) No
2) What does the wire gauge have to do with dulling a tool used to strip insulation?  Properly adjusted, it shouldn't be shaving the wire too.
3) I have been using a Jonard manual stripper for Kynar insulation for years.  Still works as good as new.   
4) If you intend to use information from this thread to tell your customers they are doing something wrong, that is not a good way to keep a your customers customers.

Kean:
7/0.2 wire is 24AWG.  That stripper is not meant for 24AWG, but the way that one operates it shouldn't make a huge difference in wear on the tool.  Rather it probably won't strip properly without damage to the conductors - just as it would if the wire gauge isn't set correctly.

In any case wire strippers will wear out with use no matter if used correctly or incorrectly, so the good news for your customer is those ones are on special right now.

mikeselectricstuff:
As 7/0.2 typically has much thicker insulation needing more pull force,  it may be that the blades have become bent rather than blunted. Kynar needs a nice sharp blade so any damage to the blade would quickly become apparent.
May also be blunting due to it cutting some of the copper rather than just the kynar insulaiton

tooki:
And don’t forget that 24AWG stranded wire has approximately the diameter of 22AWG solid wire — and that those strippers (like most) are marked for solid wire. So yeah, using effectively 22AWG wire in a stripper that’s maxes out at 26AWG is going to damage the blades, regardless of insulation type.

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