Rail Welding

Rail welding technology supports the safe and stable transportation of railways.

JFE Technos develops welding equipment that meets the needs of customers based on its experience in actual rail welding works.

[Gas Pressure Welding Method]

[Enclosed Arc Welding Method]

[Flash-Butt Welding Method]

[Alumino-thermic Welding Method]

Construction of Shinkansen Lines (High Speed Rail)

JFE Technos has supported the stable bullet train operation with rail welding in all Shinkansen line constructions, beginning with the Tokaido Shinkansen, which was the first high speed railway in the world.

Development of Rail Welding Equipment

Based on our experience in rail welding work, JFE Technos develops and manufactures welding equipment focusing on easy actual use. We support use not only in Japan, but also overseas, by customizing welding equipment to meet the customer’s needs.

Long Rail Welding System Used in Shinkansen Construction Work;

• ・Long rails are indispensable in modern railways.
• ・Flash-butt welding machine and Cold straightening machine are installed in the fabrication line.
• ・Realizes “Shinkansen quality” high accuracy and strength with excellent welding efficiency.
• ・Compact and lightweight, and can also be used in welding at site temporary fabrication shop with simple installation and adjustment.

JFW-V3 Portable Rail Flash-Butt Welding Machine

CSM-V1 Cold Straightening Machine

User-friendly gas pressure rail welder

• ・For easy to use at construction sites, complex gas flow rate adjustments and hydraulic operation during pressure welding have been automated.
• ・Gas pressure welding with high accuracy and reproducibility is possible, and welding records can be obtained automatically.
• ・Also supports tension gas pressure welding (option).
• ・Supports safe, secure railways with stable quality and high welding reliability.

JGP-N1 Gas Pressure Rail Welder

Electronic gas flow controller