Crimp Connector Advantages

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Crimp Connector Advantages

Postby tony.latham » Thu Feb 09, 2017 2:26 pm

Yes, I've been a long-time advocate of soldering connectors, but out of efficiency purchased a real crimper instead of my old $4.99 specials.

Anyway, I just stumbled on this write-up of crimping connectors (with the right tool) that also has a good video

https://carmanuals2.com/get/honda-hr-v- ... nual-73400

And here's just the video:



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Re: Crimp Connector Advantages

Postby H.A. » Thu Feb 09, 2017 4:43 pm

Thter..
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Re: Crimp Connector Advantages

Postby MtnDon » Thu Feb 09, 2017 5:09 pm

The key word in both cases is "good"; good/proper crimping tool and good soldering ability. Either can be bad to horrid.

I don't solder much any more. Solder is usually reserved for things that need it; circuit boards and the like. Where crimped terminals can be used they are hard to beat with a proper tool.
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Re: Crimp Connector Advantages

Postby GuitarPhotog » Thu Feb 09, 2017 10:24 pm

I have been soldering for more than 50 years, and I have crimped a countless number of connectors with good and bad tools, and I have to say that if you don't have a good tool, and adequate instruction and/or practice, you are more likely to make a good connection with a crimping tool, no matter how poor than with a soldering iron. If you don't know what you are doing.

Making a good solder joint is not trivial and can't often be accomplished by accident. Making a good crimp joint with a cheap tool has a much larger chance of success than making a good solder joint with a crappy tool and no experience/training.

My $0.02 worth
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Re: Crimp Connector Advantages

Postby Aguyfromohio » Fri Feb 10, 2017 8:46 am

I worked in manufacturing for electric equipment, and we made hundreds of crimp connections every day.
They are highly reliable and considered best practice.
That video is the best information available, right from the worlds largest manufacturer, Tyco/AMP.

But crimps are easy to get wrong.
The only way we could get consistently reliable crimps on our production lines was using dedicated crimp tools, a different tool for each crimp connector type or size. That's those blue handled pliers in the video. The full-stroke, ratchet-action type with specific jaw dies. 400 bucks each.
Crimping two different sizes? You'll need two of those $400 tools.

Myself at home, I use the old cheap orange-and-black universal crimp pliers, the ones we would never allow in our plant.
I take my time and work carefully, and pay attention to that info about stripping properly and grabbing the insulation with the strain relief tabs.
Crimp connectors are my go-to method. I trust them and I have some that are still working after twenty years or more.
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Re: Crimp Connector Advantages

Postby QueticoBill » Fri Feb 10, 2017 9:12 am

Long ago, I did maintenance on cables. The preferred method was to crimp on a ring and then dip it in solder pot. Very physically strong and very low electrical resistance.
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Re: Crimp Connector Advantages

Postby Dale M. » Fri Feb 10, 2017 9:47 am

Good find on video...

Yes changeable die ratcheting crimper are the best.... What video did not mention is put a small dab of dielectric grease on wire before inserting into terminal will prevent corrosion in even the best possible crimp... I know they mentioned gas tight connection, but we out here in the wilds don't always have best tooling and do best quality so its just a little added insurance...

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It is also good in lamp sockets to prevent corrosion and wire connections to chassis for grounding....

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Also really good wire skinners are important as mentioned in video... I prefer theses...

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Re: Crimp Connector Advantages

Postby Aguyfromohio » Fri Feb 10, 2017 1:47 pm

These are the cheap crimper style I use.
Notice the jaws on these are different shapes each side.
Bottom is round like a cup, top jaw has a tooth in middle of connector.

Imagek

When you crimp, put the seam line of the connector down in bottom of cup.
Tooth will fold the seam ends in properly. It's a poor man's die set.
There are other very cheap crimpers with just two flat spots to crush connector, giving bad results.
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The crap tools are $20, the decent ones are $30 That one in post above probably more, it has nice square sharp jaw dies, should give great results.
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Re: Crimp Connector Advantages

Postby slowcowboy » Sat Feb 11, 2017 2:13 pm

I switched from.suit case connectors to the crimps and I use a big players much as the one above it was pricey but well worth it I swear by crimp one now and I go over crimp ones with heat shrink as a back up.

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Re: Crimp Connector Advantages

Postby elcam84 » Sun Feb 12, 2017 9:43 am

I prefer to crimp and then solder then heat shrink with glue lined tubing. But that's from my days as an ase master tech.

The biggest issue I see with crimps is that people usually use too big of a terminal because it's easier to insert the wire. So it doesn't crimp tight at all.

Those blue handle crimpers will do a good crimp for most uses. There are some just slightly more expensive but have replaceable jaws that are available for all kinds of sizes and types of terminals.

Those standard old crimper stripper tools are only good for cutting small machine screws to length.

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