Method Developed

NK-Type Portable Flash-Butt Welder

  • The welder has been made lighter to allow on-site welding
  • Fully automated for better quality and reliability
  • Welding time is around three minutes, making it the fastest among all methods
Main construction projects in which it has been deployed
  • JRCC Hokuriku Shinkansen construction project
  • JRCC Hokuetsu-Hokusen construction project
  • SEIBU Railway Co. Koremasa Line welding project

Semi-Automated EA Rail Welding Method

  • The use of a continuous supply of welding wire dramatically cuts welding time
  • The use of a gas shield reduces slag generation
Main construction projects in which it has been deployed
  • JRCC Akita Shinkansen construction project
  • West Japan Railway Company Sanyo Shinkansen welding project
  • Hokkaido Railway Company Seikan Line welding project

JGP-N1-Type Pressure Welder

  • A part of the pressure welder operation has been automated
  • A function has been installed allowing automatic recovery of data on pressure welding
  • The pressure welding burner adjusting process has been simplified to improve stability
Main construction projects in which it has been deployed
  • SEIBU Railway Co. gas pressure welding construction project
  • Keio Corporation gas pressure welding construction project
  • Odakyu Electric Railway Co. gas pressure welding construction project