Subscribe options

Select your newsletters:

Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Cryolines | Another day, another spool

    Having wedged his body and equipment into the cramped space between the ceiling and the massive pipe, a worker is busy welding two cryolines spools. A few metre [...]

    Read more

  • Image of the week | Bearings unveiled

    The construction teams are in the last stages of preparing the Tokamak pit for the first major operation of ITER machine assembly: the lowering of the cryostat [...]

    Read more

  • Technology | Perfecting tritium breeding for DEMO and beyond

    While ITER will never breed tritium for its own consumption, it will test breeding blanket concepts—the tools and techniques that designers of future DEMO react [...]

    Read more

  • Fusion world | Japan and Europe complete the assembly of JT-60SA

    The JT-60SA fusion experiment in Naka, Japan, is designed to explore advanced plasma physics in support of the operation of ITER and next-phase devices. After s [...]

    Read more

  • Manufacturing | Thermal shield milestone in Korea

    Six years after the start of fabrication, Korean contractor SFA has completed the last 40° sector of vacuum vessel thermal shield. The stainless steel panels, c [...]

    Read more

Of Interest

See archived entries

Assembly Hall

Another massive handling tool

Inside of the Assembly Hall, some of ITER's heaviest components will have to be raised ever so carefully from their horizontal delivery positions to vertical. This delicate operation is the job of the "upending tool"—a large, sturdy steel frame capable of handling 440-tonne vacuum vessel sectors and 360-tonne toroidal field coils with utmost precision.

The upending tool (right) was delivered to the Assembly Hall on 6 November and is now being assembled and precisely positioned on a set of base plates embedded in the floor in the far right corner. (Click to view larger version...)
The upending tool (right) was delivered to the Assembly Hall on 6 November and is now being assembled and precisely positioned on a set of base plates embedded in the floor in the far right corner.
Procured by Korea, the upending tool was delivered to ITER on 6 November. The 18-metre long, 14-metre wide frame came in two halves that are presently being assembled and positioned on dedicated base plates embedded into the building's floor.

Contrary to the twin pre-assembly tools (SSAT), the upending tool does not feature any mechanical, electrical or hydraulic machinery. It is basically a steel frame, but a highly sophisticated one. "The tool is huge," says Assembly Support Section Leader Hyung Yeol Yang. "Controlling the overall dimensions within tolerances of less than 2 millimetres was very challenging for ILJIN, the Korean manufacturer."

The tool is designed to handle two types of components that have nothing in common except their exceptional size and weight: 440 tonnes for a vacuum vessel sector, 360 tonnes for a toroidal field coil. Switching from one to the other will require a complete reconfiguration of the component's supports inside the frame.

The tilt operations, with the upending tool and its load suspended to the hooks of the overhead crane, will need to be repeated 27 times in order to deliver vacuum vessel sectors and toroidal field coils to the pre-assembly tools. The process will be a slow one: up to three weeks to finalize each operation.



return to the latest published articles