ArticleEmerging TechIndustry NewsProjectsTunnel Boring

Robbins Crossover XRE is World’s Fastest TBM over 13 Meters in Diameter

In October 2021, 13.77 m (45.18 ft) Robbins XRE tunnel boring machine (TBM) set world records for fastest boring by day, week and month at the Esme-Salihli Railway Tunnel in Turkey. The machine set records of a best day of 32.4 m (106 ft), a best week of 178.2 m (584.6 ft), and a best month of 721.8 m (2,368 ft). Launched in March 2021, the machine bored 3.05 km (1.90 miles) on the Esme-Salihli Railway Tunnel as part of the Ankara-?zmir High Speed Railway Project for the TCDD. “When the strength, force and torque generated by our Crossover TBM are taken into account, we consider it to be a beast. It has performed extremely well in this tunnel,” said Onur Kansu, TBM Manager for project contractor Kolin Construction. He added “We are proud we have accomplished such high performance.” The ma...

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