Tension Balancers
Tension balancers maintain a constant level of tension in overhead wires that supply power to railroad pantographs
Turnouts
Turnouts are important devices for safely branching railcars.
Grid Tie Turnouts
Jointly working with JR East, our group company Sumihatsu developed a ladder-structure grid tie turnouts that employs NHK Spring's synthetic rail ties to reduce maintece and prevent non-turning at turnout points.
Rail Fastening Devices
Rail fastening devices are used in a wide range of applications, including Shinkansen trains, conventional trains, cranes, and elevators.
Synthetic Rail Ties
These are mold-formed synthetic rail ties made of urethane resin foam impregnated with unsaturated polyester and reinforced with glass fiber.
Springs for Shinkansen
These important coil springs for supporting Shinkansen trains are used in bogies and serve to suppress vibration and sway when the train is running.