Automatic bolt tensioner

This purely axial method allows engaging the tensioning force exactly into the connection. The optimization of assembly time is the biggest benefit. Due to the automatic bolt tensioner eliminates time-consuming screwing and unscrewing. The resulting time saving of the tensioning is approximately 50%.

Standard design

  • Patented thread clamping
  • Drive gear, teethed nut and gearbox
  • Automatic piston return
  • Hydraulic over stroke limiter
  • Treated surfaces, wear and corrosion resistant
  • Ratchet wrench to turn the hexagon nut
  • 12 mm stroke


  • Surfaces nickel-plated or painted
  • Different designs for the connection nipple
  • Rotatable right-angle connector
  • Cycle counter
  • Cordless stroke measuring