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Tool Talk Discussion Forum

tool for crimping open-barrel electrical terminals

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J.D. Jim A

01-06-2005 17:51:01




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I can't seem to find a crimper that will do bigger open-barrel terminals, like those for 12 or 10 guage wire. I've got a Matco crimper that works great for 14 guage and smaller, but it just won't do a nice job on 12 guage. Any suggestions?




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Half Vast

01-08-2005 15:40:40




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 Re: tool for crimping open-barrel electrical termi in reply to J.D. Jim A, 01-06-2005 17:51:01  
This is a little off topic but do not twist up the end of a strand of wire before you crimp even though it makes it easier to insert. If you do, the outer strands use up more of their length in the "twist". As the connection is subjected to vibration, tension (pulling), etc, the twist "unwinds" and the tensile pull is carried by the few strands in the middle. They soon fail in fatigue and all strands will fail one by one as it becomes their turn to pick up the "pull".

"Don't start vast projects with half vast ideas".
Unknown-

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CRUSADER

01-07-2005 18:41:02




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 Re: tool for crimping open-barrel electrical termi in reply to J.D. Jim A, 01-06-2005 17:51:01  
Have you tried using a Daniels Kit? They got the crimper, wire stripper, and sizer for just about any type of wire repair that a person would ever need to do.

Jim



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Van in AR

01-08-2005 22:50:00




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 Re: tool for crimping open-barrel electrical termi in reply to CRUSADER, 01-07-2005 18:41:02  
A Danials kit is great in the AF, don"t know many people that could afford the 15K price to work on their tractor though.
Van



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CRUSADER

01-09-2005 10:03:54




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 Re: tool for crimping open-barrel electrical termi in reply to Van in AR, 01-08-2005 22:50:00  
Hello Van in AR
I agree, not many people that don't work in aviation would have a need for a Daniels Kit. However, DMC does make numerous tools for wire repair. If a person is needing certain tools to use in the repair of wiring they can be had through Jensen. The phone number is 1-800-225-5370 or go to the web site jensontools.com to locate them or get a catalog (that's where I saw the kit listed) don't know the price of it didn't look at that part. When repairing/making battery cables, I used to use either a cutter or a hack saw to cut them with. The shops that I worked in prior to joining the AF had a terminal kit with the tools to use in making the cables. I either used the crimpers to install the terminal ends with or sometimes visegrips did a better job. Another place to acquire the crimpers/strippers/etc. would be at the local NAPA Auto Parts Store. That's where I purchased the last terminal kit that I bought for the shop I was working at (this was in the early 80's) and I am almost positive that they still have them.

later days mate,
Jim

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MAC,IL

01-07-2005 10:37:17




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 Re: tool for crimping open-barrel electrical termi in reply to J.D. Jim A, 01-06-2005 17:51:01  
I got a pair similar to RT-6 on the web site (elec term) submitted by Bob. About 12" long. Guarantee the crimp will hold. When you start the crimp, it will ratchet until crimp is complete, else the jaws will not open. Seems they have sort of a composit action. Really do a good job.



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thurlow

01-06-2005 21:24:34




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 Re: tool for crimping open-barrel electrical termi in reply to J.D. Jim A, 01-06-2005 17:51:01  
This doesn't answer your question, but after hundreds of crimps/splices, I've given up..... I solder/heat shrink wrap every connection..... ..they don't fail.



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Red Dave

01-07-2005 06:20:45




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 Re: tool for crimping open-barrel electrical termi in reply to thurlow, 01-06-2005 21:24:34  
J.D. Jim, to answer your question, I have used Thomas & Betts crimp-on terminals and also have used T&B crimp tools for 30 years. I've always liked them better than any other brand I have tried.

Thurlow, I don't know how you could have a failure with crimp connections if the appropriate connector is used for the wire size, crimped on with the proper tool. I've seen (and helped wire) entire generating stations, using literally hundreds of thousands of crimped connections, without a failure. Solder joints are a rarety in this business anymore. Crimp-on connections are even used in the nuclear industry which have the tightest standards of anybody anywhere.

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dr.sportster

01-07-2005 07:38:27




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 Re: tool for crimping open-barrel electrical termi in reply to Red Dave, 01-07-2005 06:20:45  
Dave that may be true but generating stations. dont vibrate like tractors,motorcycles etc .I crimp then solder.I remove the pastics sleeve or order bare sleeves.Then Ill shrink two or three shrinks on top.The first time you have a bad crimp you will troubleshoot for hours to find it in a plant.But everyone does it that way I understand this.Thomas and Betts is the ultimate crimper, no doubt, but not affordable to the average worker.Probably worth every penny for the job it does.

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Gerald J.

01-07-2005 08:26:08




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 Re: tool for crimping open-barrel electrical termi in reply to dr.sportster, 01-07-2005 07:38:27  
Use a ratchet crimper to be sure to close it enough. And be sure to use a brand name like T&B for crimper and lugs. Lugs made out of scrap coffee cans on the pacific rim don't have the strength to hold the crimp.

Your soldering makes connections that are sure to break. And to break far sooner than proper crimps. Solder wicks into the strands out past the connector sleeve and makes the stranded wire stiff and the end of that stiffened segment is where the wire breaks every time. That is why industry, including nuclear, aircraft, and automotive uses crimps.

Gerald J.

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dr.sportster

01-07-2005 12:43:38




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 Re: tool for crimping open-barrel electrical termi in reply to Gerald J., 01-07-2005 08:26:08  
G, I see big bags of Taiwan type crimps at swap meets.I am fortunate to have scrounged a large collection of American made ones from garage sales and worked in a place where the owner gave me some amp ones.I know what you mean about the wire getting stiiff and brittle at the solder.But the layers of shrink tube support that.I hate the look of the red,blue and yellow crimps cause its an obvious repair relacement.If I make all the ends black they blend in to the vehicle better.

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the tractor vet

01-07-2005 08:18:27




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 Re: tool for crimping open-barrel electrical termi in reply to dr.sportster, 01-07-2005 07:38:27  
When it comes to my tools for equipment repair it only cost a buck more to go first class , I have several differant stile crimper for the many differant termainals and the ones i have do a fine job or they would be in the scrap bin.



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Bob

01-06-2005 18:12:07




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 Re: tool for crimping open-barrel electrical termi in reply to J.D. Jim A, 01-06-2005 17:51:01  
Try here:

Link

Link



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UPRED

01-06-2005 18:02:33




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 Re: tool for crimping open-barrel electrical termi in reply to J.D. Jim A, 01-06-2005 17:51:01  
try www.jensentools.com they handle one for 10-22 ga and others



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