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Herrenknecht AG is a German manufacturer of tunnel boring machines, headquartered in Allmannsweier, ... Approximately 300 work at three different locations across China.

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Tunnel boring machine - Wikipedia

A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.

History - Herrenknecht AG

The contract for the delivery of the 100th tunnel boring machine to China is signed. ... Herrenknecht looks back on 30 years of successful history.

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Workers celebrate the completion of the tunnel boring machine (TBM) Caiyun in Kunming, capital of Southwest China's Yunnan province, Aug 1, 2017. The Chinese made TBM, which has a 9.03-meter cutter head, was completed in Kunming on Tuesday and it will be used to drill a railway tunnel in the province.

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Herrenknecht - Official Site

Herrenknecht is the world market leader in mechanized tunnelling technology and offers high quality tunnel boring machines for every geology, additional equipment, and services.

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Swedish commuters see light at end of tunnel after massive train chaos; Yujiashan Tunnel successfully holed through in China's Hubei; Israel reveals technologies of locating tunnels after foiling "longest, deepest" Gaza tunnel

Tunnel Boring Machine Market - Global Industry Analysis and ...

Tunnel boring machine market is largely driven by the increase in spending on road and railway infrastructure. Countries such as China, Japan, Italy, South Korea, Norway, and Germany have vast tunnel networks