General > General Technical Chat
more expensive crimps, harder on the tools?
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teus:
I have a 20-25 euro tool for crimping quick disconnects (link), those in red-blue-yellow color. With cheap crimps it never did a great job. Recently I'm trying to crimp better crimps, such as Farnell 2293338 (TE 2-520184-4) and I'm having an even worse time. The wire can be pulled out easily. The blue crimps I have to use on the red tongs, otherwise they don't work.
Is this because more expensive crimps are a lot tougher, and require a stronger crimping tool?
I've tried adjusting the tool to the highest force. It requires both hands to engage, and doesn't help.

edit: or am I simply using the wrong type of crimp tool?
elecman14:
If you are struggling to get good crimps you may want to look for a tool with longer handles and a different die setup. Something like Klein Tools 1005 may be a better fit.
thm_w:
Are you using the correct wire gauge?
Cubdriver:
In my experience, because female QD connectors tend to be made of thinner tin plated alloy sheet metal rather than the thicker, softer tinned copper usually used for other types (ring, fork, hook, some male disconnects), the barrel part will need to be crimped more to get a good grip.  For that sort of terminal on a generic crimper like that I usually use the next size down die (such as blue in red, as you mentioned doing), or doubling the wire over to increase its bulk within the barrel.

Note that Amp calls out a specific crimper for the QD terminals you listed:  https://www.te.com/usa-en/product-58628-1.html

Different than they do for ring and spade terminals such as this:
Ring https://www.te.com/usa-en/product-171506-1.html
Tool https://www.te.com/usa-en/product-58433-3.html

Leading me to believe that the actual crimps are different.  (And confirming that manufacturer's tooling is insanely expensive!)

-Pat

<edit for clarity of terminal construction>
teus:
yeah, you can do some tricks by crimping the mantle as well. at this rate I'll probably break my crimping tool, sooner or later.
so far I haven't figured out if there's different crimp tools for quick disconnect and ring/fork

--- Quote from: elecman14 on May 10, 2022, 01:28:23 pm ---If you are struggling to get good crimps you may want to look for a tool with longer handles and a different die setup. Something like Klein Tools 1005 may be a better fit.

--- End quote ---
that one isn't even too expensive. the shape looks funny though, I'd have to figure out what crimps it can and can't do

--- Quote from: thm_w on May 10, 2022, 08:51:18 pm ---Are you using the correct wire gauge?

--- End quote ---
yes, I am
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