A made-in-China roadheader with an excavation diameter of 5.63 meters recently came off the production line in Changsha, Central China’s Hunan Province. This equipment will be used in the construction ...

ORINDA — A giant digging machine this week carved the first few feet of earth and dirt out of the hills for the Caldecott Tunnel’s fourth bore, a $420 million project to reduce congestion on Highway ...

ORINDA — A giant digging machine this week carved the first few feet of earth and dirt out of the hills for the Caldecott Tunnel’s fourth bore, a $420 million project to reduce congestion on Highway ...

The Sandvik MT520 is a new roadheader in the 91-t class, built for increased productivity and safety. The machine has easily exchangeable modules, which form the basis for cost-effective excavation in ...

Sandvik Mining and Construction has launched a new class of roadheader for tunnelling in medium to hard rock. Sandvik says the modular design of the MT520 means it can be adapted to a range of ...

OTTAWA — Neither freezing rain, nor snow nor, well, nor just about anything is getting between “Jawbreaker,” the giant tunnelling roadheader and its objective of tunneling a 2.5-kilometre hole under ...

The Sandvik MT520 is a novel construction roadheader in the 100-ton class. The machine concept is based on easily exchangeable optional modules, enabling the MT 520 ...