Innovative design ensures safer installation

Advanced solution delivering high performance torque transmission for critical high load rotating shafts and couplings

HyFit hydraulic expansion bolt is a direct retrofit replacement or alternative to a conventional coupling bolt, providing significant benefits through both operational improvements in coupling performance and time saving during plant maintenance periods.

The solution has innovative design features that address the challenges commonly experienced with alternative coupling bolt solutions to ensure safer, more reliable installation and removal procedures:

  • The unique HyFit bolt body seals ensure reliable separation of bolt from sleeve by oil injection method.
  • Destructive testing program has provided the HyFit bolt with the safest taper thread puller available – installation and removal procedures safer than ever before achievable.
  • Bolt coating provides predictable coefficient of friction for easy installation and removal.



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