Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • Fuelling fusion | The magic cocktail of deuterium and tritium

    Nuclear fusion in stars is easy: it just happens, because the immense gravity of a star easily overcomes the resistance of nuclei to come together and fuse. [...]

    Read more

  • 360° image of the week | The cryoplant

    Cryogenics play a central role in the ITER Tokamak: the machine's superconducting magnets (10,000 tonnes in total), the vacuum pumps, thermal shields and so [...]

    Read more

  • Central solenoid assembly | First sequences underway

    What does it take to assemble the magnet at the heart of ITER? Heavy lifting, unerring accuracy, and a human touch. The central solenoid will be assembled from [...]

    Read more

  • Assembly | The eyes of ITER

    Supervisors ensure compliance and completion as machine and plant assembly forges ahead. In Greek mythology, Argus was considered an ideal guardian because his [...]

    Read more

  • Component repairs | Removing, displacing and disassembling

    A good repair job starts with a cleared workbench, the right tools on hand and a strong vise. This axiom, true for odd jobs in a home workshop, is also true for [...]

    Read more

Of Interest

See archived entries

Sub-assembly tools

A 12-tonne beam, a crane and a little push

There is nothing remarkable about lifting a 12-tonne beam. Except when it happens in the spectacular setting of the ITER Assembly Hall, and the beam needs to be fitted with extreme precision into a structure as monumental as the ITER sector sub-assembly tools.

The first 12-tonne beam is slowly lifted 22 metres above ground. (Click to view larger version...)
The first 12-tonne beam is slowly lifted 22 metres above ground.
Towering 22 metres above ground, the vacuum vessel sector sub-assembly tools (SSATs) are formidable handling machines that will be used to pre-assemble vacuum vessel sectors with a pair of toroidal field coils and thermal shield segments before integration in the machine.

The assembly of SSAT-1 began in November 2017 and is now complete. Work on its identical twin SSAT-2 started in September the following year and is now entering its final phase.

Positioned on both sides of the beam, CNIM specialists precisely align the suspended beam and the massive supporting pillars—an operation that can only be performed manually. (Click to view larger version...)
Positioned on both sides of the beam, CNIM specialists precisely align the suspended beam and the massive supporting pillars—an operation that can only be performed manually.
Part of Korea's contribution to ITER, the tools are assembled by French contractor CNIM. Lessons learned from SSAT-1 have reduced assembly time for SSAT-2 by approximately one-third.

On Wednesday 9 January, installation operations began for some of the last elements: two 12-tonne beams that stabilize the massive pillars of the machine.

Click here to watch a video of the installation.



return to the latest published articles