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Hollow Switch Ties (HST®)

The HST is an advanced switch support system consisting of robust, maintenance free formed steel ties, high strength composite blue rods and a rotary assist:

  • Improves gauge restraint
  • Facilitates continuous mechanized surfacing through the turnout


  • Non-handed design
  • Improved switch life
  • Reduced maintenance
  • Greater switch reliability - fewer trouble calls
  • Positive gauge control
  • Can be used with any switch machine



US Patents 6,158,698 and 6,543,727

See brochure for Technical Characteristics