Shantou Gulf Tunnel Project is designed for the extension and upgrading of the city. It would be the most challenging subsea project of its kind in China in terms of construction. CREG provided the project with a 15.03m diameter slurry TBM which consists of integrated design of ultra-high pressure sustaining system, accessible cutterhead, telescopic swinging main drive and two-circuit air pressure control.

Machine length: 130m

Machine weight: 4,100 tons

Maximum thrust: 22,220 T(350bar)

Max. advance speed designed: 50mm/min

Rated torque: 45,450KN.m

Max. torque: 59,085kn.m

Rotational speed: 0-2.5rpm