Herrenknecht
Encyclopedia
Herrenknecht AG is a German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 manufacturer of tunnel boring machine
Tunnel boring machine
A tunnel boring machine 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. They can bore through anything from hard rock to sand. Tunnel diameters can range from a metre to almost 16 metres to date...

s of all sizes. Herrenknecht is headquartered in Allmannsweier near Schwanau
Schwanau
Schwanau is a town in the district of Ortenau in Baden-Württemberg in Germany. It was formed in 1971/1972 with the merger of the villages of Allmannsweier, Nonnenweier, Ottenheim and Wittenweier.-External links:* *...

 and is the world market leader for heavy tunnel boring machines. Roughly two-thirds of the 1850 employees work at the company headquarters and roughly 300 work at three different locations in China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

.

As of 2005, Herrenknecht holds the world record for constructing the largest tunnel boring machines in the world, at 19 metres (62 ft) diameter.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK