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Author Topic: Re-spot welding tinplate cars  (Read 133 times)


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Re-spot welding tinplate cars
« on: January 27, 2018, 12:03:22 am »
Does anyone have a suggestion on what to buy to re-weld tinplate cars. I know they are spot welded, but what did Lionel use and what can be used today to repair spot welded cars?  Someone suggested a Sunkko battery spot welder any other suggestions much appreciated.  How are you guys re-welding your cars? 

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Re: Re-spot welding tinplate cars
« Reply #1 on: January 27, 2018, 07:43:41 am »
Hello & Welcome to the Forum!

Many of us in the process of restoring old rolling stock have encountered the same problem. true some of the epoxies/adhesives available today will work, but is nice to just be able to spot weld things together.
I have come across an article that suggests using a lionel 1044(been years since i read th article) I used the little blue box L. transformer I had..  make contact points out of stainless wire, affixed to a clothes pin.  connect to the outputs on the L. transformer. when the wires meet, you get a small spot weld.  You should be able to napkin engineer the spot welder.

I'll see if I can locate the article and repost it here.

Happy Rails!


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Re: Re-spot welding tinplate cars
« Reply #2 on: January 27, 2018, 01:38:14 pm »
Thanks for the reply-  What I have been contemplating is a battery welder like a Sunkko 709A  which is used for spot welding battery strips to battery posts to make battery packs.  Not sure if the tinplate is too thick though for the machine. But two hundred dollars seems a reasonable price to be able to repair tinplate if a battery welder would work.
« Last Edit: January 27, 2018, 01:40:49 pm by Tlh »


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Re: Re-spot welding tinplate cars
« Reply #3 on: January 29, 2018, 09:51:58 pm »
Update,  The Sunkko spot welder's will not work with tinplate as the tinplate is too thick. Those battery welders only weld up to .03 mm.  More research to follow, Tlh


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