Archive | August, 2017

Mechanical machining of erector segments for a TBM (Tunnel Boring Machines)

Thursday, August 31, 2017


We have recently carried out the mechanical machining of 4 sectors of a erector for a TBM (Tunnel Boring Machine).

The next step will be the assembly of the four machined erector sectors to create the rotating ring of the erector which will measure 9 meters in diameter.

The erector is for a tunnel boring machine for an excavation project in Japan. The TBM in question, with a 13.2 meter wide cutter head, will be used to bore a tunnel for the construction of lane 5 of the Hiroshima expressway (the Hiroshima Project).

Below are some photos during machining phases of the erector sectors.

Mechanical machining of erector segments for a TBM

Mechanical machining of erector segments for a TBM

Mechanical machining of erector segments for a TBM

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Galbiati Group - Engineering & Machining

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