Crimpers

An alchemy of sparks, copper wire and earth

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ninja.turtle007
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Crimpers

Post by ninja.turtle007 »

I need a decent pair of ratchet crimpers for insulated terminals. The cheapo pair I currently have don't squeeze the terminal properly, which results in a lot of loose failures.

I'd rather not pay for a pair from Facom or Knipex, but will if I need too.

All of the reviews I've read on Amazon etc, haven't really helped.

Suggestiins please
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Oldiebut goodie
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Re: Crimpers

Post by Oldiebut goodie »

Solder. :)
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itchyfeet
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Re: Crimpers

Post by itchyfeet »

Oldiebut goodie wrote:Solder can fatigue when used in an application with vibration

fixed that for you :lol:

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nicq
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Re: Crimpers

Post by nicq »

Depending on the crimps you are using something like this may be OK.
https://www.toolstop.co.uk/index.php?op ... gKp1PD_BwE" onclick="window.open(this.href);return false;
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Re: Crimpers

Post by bigbadbob76 »

A properly done crimp forms a molecular bond superior to soldering, a badly done crimp is not worth doing, so if you havn't got the proper ratchett tool you're better off soldering.
these are pricey but do a proper job.
https://uk.rs-online.com/web/p/crimp-tools/0533279/
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Oldiebut goodie
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Re: Crimpers

Post by Oldiebut goodie »

They were all soldered before crimping was invented!
No fatigue if carried out correctly with support from wire insulation to terminal.

Wikipedia:

According to one of the crimp tool manufacturers, the development of standardized crimp tools and procedures occurred on this timeline.[2]
1940's All terminations were soldered (Hard-wired)
1953 AMP introduced Crimp Barrel Terminals
1957 Cannon Brothers experimented with Machined Contacts with Crimp Barrels
1960 Buchanan introduced the MS3191-1 4 Indent Crimp Tool with a Ratchet[3]
1963 MS3191-1 was published as the first Crimp Tool Standard
1965 MS3191-4 introduced by Daniels Manufacturing Corporation
1969 MIL-T-22520 published and dated to replace all previous specifications
1974 Changed to MIL-C-22520, and many Slash Sheets added
1996 Changed to MIL-DTL-22520
2010 Changed to AS22520[4]
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itchyfeet
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Re: Crimpers

Post by itchyfeet »

I'm not that old :D

I guess they moved away from soldering because ???
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Oldiebut goodie
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Re: Crimpers

Post by Oldiebut goodie »

Speed of assembly.
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Re: Crimpers

Post by ChrisTriple »

They moved away for cost and speed for sure, but if crimping is good enough for aviation then in should be more than good enough for a camper :ok
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nicq
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Re: Crimpers

Post by nicq »

Reliability
Anybody can be shown how to crimp properly but have you seen poor soldering.
A good crimp needs the barrel to be full so the correct size of crimp is required . then the correct tool need to be used.
This is a good crimp for automotive use
https://www.diynot.com/diy/threads/repl ... hort.7852/" onclick="window.open(this.href);return false;
Scroll down you will see the Raychem cimps
The heat shrink shrinks to support the wire
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Oldiebut goodie
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Re: Crimpers

Post by Oldiebut goodie »

That is a nonsensical argument - if you can be shown how to crimp properly you can be shown how to solder correctly.
Have you seen poor crimping. :D
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Re: Crimpers

Post by ChrisTriple »

Oldiebut goodie wrote: Have you seen poor crimping. :D

Yes lots, it’s bloody awful, crimp to tightly you create hot spots crimp to loose and the wires vibrate out.

But done correctly it’s perfectly alright for flight :ok

Crimping is easy to teach and easy to learn, soldering to the correct IPC Standards takes a long time to learn and in today’s world companies don’t want to pay to teach people
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ninja.turtle007
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Re: Crimpers

Post by ninja.turtle007 »

Oldiebut goodie wrote:Solder. :)

I do, but in some cases I prefer to crimp.
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nicq
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Re: Crimpers

Post by nicq »

Oldiebut goodie wrote:That is a nonsensical argument - if you can be shown how to crimp properly you can be shown how to solder correctly.
Have you seen poor crimping. :D
It's the argument put forward to apprentices in the airspace industry when you are taught.
You can inspect crimps easy but it's not so easy to inspect a solder joint, when you have 1000 to check.
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Re: Crimpers

Post by silverbullet »

Crimpety crimpImage

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