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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

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According to officials, the second TBM will begin its tunnelling journey from Sawli (Ghansoli) towards Vikhroli. PIcs/Special Arrangement
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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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

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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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

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

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

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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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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