Robbins TBM Sets New Record

The Robbins TBM reached high rates of 870 m (2,855 ft) per month and 58 m (188 ft) per day, setting a record for TBM tunneling in India, for a water tunnel in Mumbai.On January 21, 2014, a Robbins Main Beam TBM completed one of the longest and deepest water supply tunnels in Asia, the Mumbai Water Tunnel. The 6.25 m (20.5 ft) diameter machine displayed excellent performance throughout the 8.3 km (5.2 mi) bore, and achieved impressive advance rates along the way.