I solder all rail joints with copper wires formed like this. Left one also has the feeder connection. I never had a failure of soldering with my method.
No warries about melting sleepers with this way.


I use this. Weller soldering iron for electronic work. Its capacity is only 50W! I tried other ways like blow torch or large soldering iron. However it works best for me.


This needs bit a technique:

  • Clean parts to be soldered thoroughly.
  • Hold other side of the copper wire with a pair of pliers.
  • Push soldering iron against the rail. Wait more than 30 seconds.
  • Apply solder (for electronics) by iron.
  • Slowly move soldering iron to assure good connection.
  • The soldering iron does not have enough power to melt all the soldering area. So move the iron slowly to melt the solder in small piece by piece.


  • 半田付けする場所は完璧にきれいします。私はワイヤブラシつきのモーターツール使用。
  • 銅線の片側をバイスプライアで固定。
  • 半田ごてを半田付けするレールに押し付けて30秒以上待つ。
  • 電気用の半田をこてで溶かしながら流す。
  • こてにパワーが無いのでこてが触っているところしか解けません。こてをゆっくり動かして部分的につけていく。

I secure insulated joint by cable tyes through holes made on rail webs.



The method mentioned above is quite alright for me, but takes bit time to heat up the rail. So I made a custom soldering iron tip for the purpose. It was made from 8mm copper rod ground to a shape like left.


The tip is mounted to 100W soldering iron keeping the extrusion as short as possible so prevent heat-losses. As seen on left picture the touching area is much larger than ordinary tip. This allows very quick soldering.


inserted by FC2 system