OTC DAIHEN products


Since its founding in 1919, the Osaka Transformer Company (OTC) has focused on bringing the benefits of innovative technology to diverse customer applications. Today, OTC DAIHEN’s global activity centers on three business pillars: Power Products, Advanced Components, and Welding & Mechatronics.

Our philosophy: Meeting the Challenge.

Confronting welding quality issues or demanding production schedules? Bring us your toughest challenges, and we won’t rest until we deliver an ideal solution



Our single-source approach is simple: we provide all the equipment needed for robotic or manual arc welding. Robot, welding power source, wire feeder, torch–we can provide everything you need. One call solves it all!

  • Seamless digital integration for maximum control
  • Reduced maintenance time for greater uptime and productivity
  • Expert service from experienced support staff

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