A giant to mill the ITER vacuum vessel

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

  • Augmented reality | Assessing the future work environment

    As part of their collaboration within the Site Support Agreement*, ITER and its neighbour CEA are developing a novel approach to explore, analyze and assess the [...]

    Read more

  • Diagnostics and instrumentation | First welding on the vacuum vessel

    Beginning in 2035, ITER will open a window into "burning plasmas"—a state of matter that exists in the core of stars only. Observing, assessing and mo [...]

    Read more

  • Assembly | Machining workshop opens on site

    Construction of an on-site machining workshop began in December 2019 and was completed on schedule in September 2020.The new workshop will be operated by the D [...]

    Read more

  • Neutral Beam Test Facility | Power is ready for the prototype injector

    The European Domestic Agency has carried out successful site acceptance tests at the ITER Neutral Beam Test Facility on power supply equipment installed ov [...]

    Read more

  • In-vessel coils | First components arrive on site

    ITER has received the first shipments of mineral-insulated conductor for ITER's in-vessel coils. The first lengths are destined for winding and bending trials a [...]

    Read more

Of Interest

See archived entries

A giant to mill the ITER vacuum vessel

A giant designed to mill the European sectors of the vacuum vessel that will be procured through a contract signed with the AMW consortium (Ansaldo Nucleare S.p.A, Mangiarotti S.p.A and Walter Tosto S.p.A). Photo: Waldrich Coburg (Click to view larger version...)
A giant designed to mill the European sectors of the vacuum vessel that will be procured through a contract signed with the AMW consortium (Ansaldo Nucleare S.p.A, Mangiarotti S.p.A and Walter Tosto S.p.A). Photo: Waldrich Coburg
One of the world's largest milling machines has been inaugurated at the Walter Tosto facility in Ortona, Italy. Called the PowerTec, it was specially designed and built by German tooling manufacturer Waldrich Coburg to mill the large stainless steel sectors of the ITER vacuum vessel.

Weighing 1,300 tonnes, PowerTec is one of the largest high precision portal milling machines ever built. The giant measures 50 metres in length, and is 18 metres tall and 22 metres wide. With a travel length of 35 metres and a maximum clearance of 10 metres—both in height and width—the PowerTec could easily clear a small home. But when it comes to handling ITER's high-tech components it's not only the sheer size that counts, it's also the precision. 

The manufacturing of the ITER vacuum vessel requires extreme precision in order to be able to successfully integrate many in-vessel components such as the blanket, the divertor and the in-vessel coils; for most of these components tolerances are on the order of 1-3 millimetres. The dimensions of the milling machine inaugurated at the Water Tosto facility on 10 September were dictated by the dimensions of the vacuum vessel sectors themselves, each weighing about 450 tonnes and standing 12 metres tall.

Of the nine ITER vacuum vessel sectors, seven will be built by Europe and two by Korea. In October 2010 the European Domestic Agency awarded its procurement contract to the European consortium AMW (Ansaldo Nucleare S.p.A, Mangiarotti S.p.A and Walter Tosto S.p.A).


return to the latest published articles