The cutting head and shield at the front are as high as a fourstorey building
The heaviest of the machine’s parts will be the 260 tonne main drive for the cutting head, while the largest will be the it’s 8.5m diameter main bearing
Re-assembly will take a team of 30 approximately three months to complete and will be overseen by members of the Well-Connected Alliance team who spent several months in China involved in the manufacture and assembly of the machine alongside German manufacturer Herrenknecht
The machine is 87m long, almost the length of a rugby field
It comprises a 14.4 diameter rotating cutting head attached to the front of a 12-metre long shield, followed by three back-up cars, or gantries, that house all the equipment needed to operate it, remove excavated material and put in place the precast concrete rings that will line the two tunnels.