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

  • Neutral Beam Test Facility | After upgrades, SPIDER testbed set to restart

    After a two-year shutdown for upgrades, the SPIDER testbed at the ITER Neutral Beam Test Facility in Padua, Italy, is preparing for commissioning and operation. [...]

    Read more

  • ITER Research Plan | Jointly preparing a new blueprint

    As part of work underway to update the ITER Project Baseline, a group of experts nominated by the Members met in February to evaluate the new blueprint for achi [...]

    Read more

  • On site | Component transfer goes electric

    On Friday 16 February, a toroidal field coil was moved from the Assembly Hall to a storage place a few hundred metres away. Quite a routine operation at ITER, a [...]

    Read more

  • Image of the Week | Director-General Barabaschi visits India

    Following his visit to China, Japan and Korea last autumn, ITER Director-General Pietro Barabaschi continued his tour of ITER stakeholders w [...]

    Read more

  • Science | Increasing fusion performance with energetic-particle-driven instabilities

    New results published in Physical Review Letters suggest that instabilities driven by energetic particles can have a positive impact on fusion performance. In t [...]

    Read more

Of Interest

See archived entries

Machine assembly

Stay tuned for a remarkable lift

Inside the ITER assembly theatre, a major lift event is imminent. This 3D animation takes us through the steps that will be necessary to transport the first 1,200-tonne section of the vacuum vessel into the Tokamak pit.

Click to view the video...


Vacuum vessel sector #6 will always have a special place in the ITER story. Of the nine sectors that will form the torus-shaped plasma chamber, it was the first to be received (in August 2020), the first to get fitted with instrumentation, the first to be upended to vertical, and the first to be docked in a standing sector sub-assembly tool.

The 440-tonne double-walled steel sector manufactured by Hyundai Heavy Industries and supplied by the Korean Domestic Agency for ITER spent just about one year in vertical tooling, as elements were added to create the first complete "sub-assembly" of the vacuum vessel. A complete set of vacuum vessel thermal shielding plus two toroidal field magnet coils were positioned with the highest degree of accuracy and adjusted with precision by the actuators of the tool.

Lessons learned with these first-of-a-kind operations have already facilitated work on subsequent sectors.

Now, the ITER Organization construction teams, including the TAC-2 assembly contractor DYNAMIC, are preparing for the crowning event in the sequence—the transfer by overhead crane of the 1,250-tonne, 40° section from tooling into the Tokamak assembly pit.

The final preparatory rigging activities are underway.

Because the 40° section must be lifted over the rim of the bioshield on its way to the pit—and because the large mass to be lifted necessitates the use of a rigging attachment called the "dual crane heavy lifting beam" that adds to the height of the ensemble—the lift will be one of the tallest assemblies to be handled by the overhead crane system.

In the 3D animation above, you can see how the different rigging elements combine to carry out the necessary steps, from extraction from the tool, to rotation, transfer, and descent.

-          The dual crane heavy lifting beam (in yellow) allows the cranes to work in tandem and facilitates the rotation of the sub-assembly from its tooling orientation to the orientation required for installation in the pit.

-          The sector lifting tool (in grey, directly underneath) connects directly to the beam supporting the sub-assembly, and has a balancing control system to precisely position the load's centre of gravity.

-          The radial beam that supports the assembly directly, and which played a role in docking the vacuum vessel sector in tooling, is designed to continue to support the sub-assembly during in-pit sector-to-sector welding by bracing itself between the tall centre column in the pit and brackets on the surrounding wall.

This long-planned operation is imminent. At the centre of the first-completed sub-assembly of the ITER vacuum vessel, sector #6 will once again be a trailblazer.

The animation is also on the ITER Organization's YouTube page (courtesy of Brigantium Engineering).




return to the latest published articles