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Dual pulse spotwelder controller


Spot welding controller
Spot welding controller
Spot welder control panel with TFT display
Spot welder control panel with TFT display

With this controller, you can control the power of a spot welder. This is done by setting three timings: the pre-weld pulse, the weld pause and the welding time. 

You can use it for:

  • DIY spot welder made with a microwave oven transformer (MOT)
  • For the repairing the Sunkko 788 welder

I have developed the D.I.Y spot welder because I needed a special spot welder for the building of my Maxun One solar bike. It turned out that the spot welder is being built by many people worldwide. 

Read the article HERE.

Note: for the repair of the Sunkko 788, the two outer switches have another position. desolder these and move them.


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