Screw/dowel combination NG

Small dowel, huge effect

  • Significantly lower pre-stressing loss & plastic deformation
  • Maintenance-free for lower LCC
  • Increased lifetime of the sleeper

Optimized thread geometry

  • Innovative internal thread geometry
  • External thread functionally segmented into two areas
  • Lower torque during tightening
  • Precise screw guidance

More special features

Sustainable dowel production at the Factory of the future

  • Robust & eco-friendly material with constant product & improved creeping properties
  • Water-repellent material properties
  • Plastic injection moulding equipment for dowels with own injection moulding technology for less energy consumption during the production and reduced carbon dioxide emissions

Dowel replacement


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Special characteristics of the tension clamp curve such as the second stiffness