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Spring Wing Controller for Spring Frogs

voestalpine Railway Systems Nortrak Spring Wing Controller reduces spring frog maintenance with innovation.

Our latest innovation addresses the chronic problems of spring wing return dampening with the development of a revolutionary new Spring Wing Controller.

Low operating pressures, robust components, easy field maintenance and adjustable rail closure rates ensure prolonged service life of your spring frog and the associated controller.


  • Long service life
  • Field serviceable
  • Adjustable closure rates to meet customer needs