Die Sanierung, Abänderung oder der Rückbau von nuklearen Einrichtungen ist eine kontrollierte Aktivität, die Sorgfalt und Einhaltung von Regeln und Sicherheitsbestimmungen beinhaltet: Die Risikominderung ist die Schlüsselarbeit und der kontrollierte Rückbau umfasst das Bohren oder Sägen von komplexen stark armierten Betonstrukturen oder reinen Stahlstrukturen in einer radioaktiven Umgebung. Diese Aktivitäten könnten möglicherweise mit oder ohne Kühlmittel unter Verwendung synthetischer Diamanttechnologien durchgeführt werden.

The managing director / chairman of the management / CEO of siegenthalerconsulting GmbH has already been actively involved several times in the provision of solutions for customers and government authorities, in particular in the area of the decommissioning of nuclear power plants, see the following examples.


Stationary Portal Diamond Wire Saw Sytem for NPP Decommissioning

  • Cutting of large steel components in the decommissioning of a nuclear power plant
  • Underwater application
  • Vertical and horizontal cutting possible
  • Guided on rails above and below
  • Closed diamond wire loop (no wire connector necessary)

Gallows Diamond Wire Saw System for NPP Decommissioning

  • An 8 m high cooling cylinder of a reactor is sawn vertically into 12 segments
  • Dry diamond wire sawing in pure steel
  • Remote-controlled gallows diamond wire saw system
  • The diamond wire is driven by a standard diamond wire saw drive unit
  • The 8 m long segments are cut into 1 m long pieces with a mobile diamond portal wire saw

Mobile Portal Diamond Wire Saw System for NPP Decommissioning

  • A heat exchanger is sawn into pieces
  • Dry diamond wire application
  • The diamond wire is driven by a standard diamond wire saw drive unit
  • Closed diamond wire loop (no wire connector necessary)
  • The sawing advance feed is controlled remotely via the control panel of the drive unit

Dry wire sawing in reinforced concrete in the decommissioning of a nuclear power plant with direct dust extraction without a diamond wire cover

  • In a nuclear power plant a machine foundation is removed
  • Dry wire sawing in reinforced concrete without additional cooling
  • Direct dust extraction without a diamond wire cover
  • Standard diamond wire saw and guiding pulleys


Dry wire sawing in reinforced concrete in the decommissioning of a nuclear power plant with dust extraction via the diamond wire cover

  • An assembly opening is created in a nuclear power plant
  • Dry wire sawing in reinforced concrete without additional cooling
  • The dust extraction works via the diamond wire cover
  • Standard diamond wire saw and guiding pulleys

Dry drilling with polycrystalline diamond core drill bits

  • Test dry drilling with PCD diamond core drill bits in a biological shield
  • Reinforced concrete / steel / aluminum / graphite and austenitic steel is drilled
  • Cooling with compressed air
  • Dust extraction with filter system
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