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IN PHOTOS: Giant TBM cutterhead installed for Mumbai-Ahmedabad Bullet Train project

Updated On: 02 June, 2026 03:44 PM IST | Asif Ali Sayed

The Mumbai-Ahmedabad Bullet Train Project has reached another significant milestone with the lowering of the cutterhead for the second Tunnel Boring Machine (TBM) at Sawli (Ghansoli) near Mumbai. Pics/Special Arrangement

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According to officials, the second TBM will begin its tunnelling journey from Sawli (Ghansoli) towards Vikhroli. PIcs/Special Arrangement
According to officials, the second TBM will begin its tunnelling journey from Sawli (Ghansoli) towards Vikhroli. PIcs/Special Arrangement
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The massive cutterhead, measuring 13.6 metres in diameter and weighing around 350 tonnes, marks the completion of the main shield assembly for the second TBM that will be used to excavate part of the project's underground tunnel section

The massive cutterhead, measuring 13.6 metres in diameter and weighing around 350 tonnes, marks the completion of the main shield assembly for the second TBM that will be used to excavate part of the project's underground tunnel section

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Earlier this week, the cutterhead for the first TBM was lowered at Vikhroli. Both machines will now undergo final assembly, testing and commissioning before beginning excavation work in the first week of July 2026

Earlier this week, the cutterhead for the first TBM was lowered at Vikhroli. Both machines will now undergo final assembly, testing and commissioning before beginning excavation work in the first week of July 2026

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The giant cutterhead has been specially designed to excavate a single tunnel large enough to accommodate both the up and down tracks of the high-speed rail corridor

The giant cutterhead has been specially designed to excavate a single tunnel large enough to accommodate both the up and down tracks of the high-speed rail corridor

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The two TBMs are among the largest machines being used in India's high-speed rail infrastructure programme

The two TBMs are among the largest machines being used in India's high-speed rail infrastructure programme

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Each machine measures 95.32 metres in length and consists of several specialised components, including the cutter wheel, main bearing, jaw crusher, erector, main shield, tail shield and four support gantries

Each machine measures 95.32 metres in length and consists of several specialised components, including the cutter wheel, main bearing, jaw crusher, erector, main shield, tail shield and four support gantries

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