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Attaching "uninsulated ring terminals" to 4 awg wire...

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mburbidg(at)gmail.com
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Posted: Fri Aug 10, 2012 6:31 pm Post subject: Attaching "uninsulated ring terminals" to 4 awg wire...

I'm using the "uninsulated ring terminals" for 4 awg wire from the contractors to my bus and alternator. Are the terminals sold by B&C meant to be crimped or soldered? If crimped where can I get a crimper big enough to handle 4 awg. B&C only sells ones that handle up to 10 awg wire.



Thanks,

Michael-

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aerobubba(at)earthlink.ne
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Posted: Sat Aug 11, 2012 2:26 am Post subject: Attaching "uninsulated ring terminals" to 4 awg wire...

Hi Michael-



I went to a local welding supply house to have them do it.  The guy there pointed out he'd have to charge me $10 per crimp, and for the same 10 bucks I could by a hammer-driven die.  It's about 2" x 3" x 5", IIRC, is conceptually similar to a cigar tip cutting guillotine (whatever you actually call those things), will crimp terminals to any of the really fat wires, and mounts to a bench, bumper, or in a vise.  You could probably use it sitting on concrete, but that would be a little gutsy.  



Put the wire end ass'y into the device, whack it with a small sledge a few times (until the built-in gauge says you're done) and you're all set.  Dirt simple, very effective, and about the cheapest airplane tool I've ever bought.



 	  Quote: 	
		  Subject: Attaching "uninsulated ring terminals" to 4 awg wire...


	




 	  Quote: 	
		  I'm using the "uninsulated ring terminals" for 4 awg wire from the contractors

to my bus and alternator. Are the terminals sold by B&C meant to be crimped or

soldered? If crimped where can I get a crimper big enough to handle 4 awg. B&C

only sells ones that handle up to 10 awg wire.


	




Glen Matejcek

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email(at)jaredyates.com
Guest

Posted: Sat Aug 11, 2012 3:05 am Post subject: Attaching "uninsulated ring terminals" to 4 awg wire...

I've got one of those wack-types that I'd like to get rid of. I wasn't happy with the results, but perhaps someone else coudl do better. I anyone is in the market for one, send me a note. 

On Aug 11, 2012, at 6:24, Glen Matejcek <aerobubba(at)earthlink.net> wrote:

 	  Quote: 	

 Hi Michael-

 I went to a local welding supply house to have them do it.  The guy there pointed out he'd have to charge me $10 per crimp, and for the same 10 bucks I could by a hammer-driven die.  It's about 2" x 3" x 5", IIRC, is conceptually similar to a cigar tip cutting guillotine (whatever you actually call those things), will crimp terminals to any of the really fat wires, and mounts to a bench, bumper, or in a vise.  You could probably use it sitting on concrete, but that would be a little gutsy.  

 Put the wire end ass'y into the device, whack it with a small sledge a few times (until the built-in gauge says you're done) and you're all set.  Dirt simple, very effective, and about the cheapest airplane tool I've ever bought.

> Subject: Attaching "uninsulated ring terminals" to 4 awg wire...

> I'm using the "uninsulated ring terminals" for 4 awg wire from the contractors

> to my bus and alternator. Are the terminals sold by B&C meant to be crimped or

> soldered? If crimped where can I get a crimper big enough to handle 4 awg. B&C

> only sells ones that handle up to 10 awg wire.

 Glen Matejcek

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aerobubba(at)earthlink.ne
Guest

Posted: Mon Aug 13, 2012 6:46 am Post subject: Attaching "uninsulated ring terminals" to 4 awg wire...

You betcha. Instead of all those other steps that invariably eat up $time$, just insert, whack whack, and solder away. It might not sound like much of a deal, but with my dual battery, all-electric airplane, there are 12 such terminals IIRC.



As far as making a gas tight joint without solder goes, it seems to be a no-brainer with the tool I have. It takes a couple moderately heavy blows with a 2 1/2 pound sledge to compress it to the gauge depth. Considering the gauge of the materials in the wire and terminal as well as the design of the die, it's hard to imagine how a reasaonable man could over do it and do damage. I tried just to see what would happen, and it seems about all you can do is some sort of gross alignment error that would be quite obvious.



Of course, this is also an industrial tool that the welding shop uses to fabricate the cables they sell to professional welders. I suspect that given the duty cycle and environment involved in that application, I will be hard pressed to have a problem with my installation.  I did solder my connections as a means of sealing the end of the wire, just because.  Heat shrink covers the barrel and bridges to the insulation.

 

One tip:  If your cable will need to bend close to the terminal, put that bend in when you attach the terminal.  I works wonders-



Also, life is easier if you remember to slip the heat shrink over the cable prior to affixing the terminal... you may wonder how I know that!

 

FWIW, YMMV...



 	  Quote: 	
		  Greetings,



I wasn't describing stacking processes.



I was suggesting that the process of "wedging" might be replaced by 

compressing the components together with a "whack-n-bash" tool. It would 

avoid the - find the wire - find the sharpening tool - strip - sharpen - 

drive - nip - process of wedging.



Seems quicker and at least as repeatable as "wedging", if it doesn't 

introduce additional issues I'm not considering.



Just wondering out loud.



Thanks,

Raymond Julian

Kettle River, MN.


	


Glen Matejcek



Glen Matejcek

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