Tensioning Systems

Economic and safe: Hydraulic bolt tensioning systems

Single clamps or small clamps for opening and closing reactor pressure vessels or other primary circuit components

As a specialist for the design, construction, supply and maintenance of highly automated bolt tensioning systems, we offer our customers demand-oriented solutions for opening and closing pressurized and boiling water reactors as well as other primary and secondary circuit components in nuclear power plants.

Our range of services includes single and multiple bolt tensioning devices, bolt turning and handling systems, bolt and blind hole cleaning systems.

Siempelkamp bolt tensioning machines reduce your operating sequences for opening and closing to less than 50 % compared to conventional methods

  • Bolt tensioning systems for pressurized and boiling water reactors
  • Single clamps for nuclear power plants, where e.g. little space is available
  • Small clamps for primary circuit components, optionally as ring and segment clamps made of high-strength steel or aluminium
  • Turning devices and transport equipment to reduce time-consuming and labour-intensive handling of the RPV bolts
  • Airlock tensioner for material airlocks
  • Additional equipment and accessories (bolt and blind hole cleaning machines)

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