Herrenknecht

Herrenknecht AG is a German construction equipment manufacturer. The company manufactures tunnel boring machines, headquartered in Allmannsweier, Schwanau, Baden-Württemberg. It is the worldwide market leader for heavy tunnel boring machines. Roughly two-thirds of the 5,000[1] employees work at the company headquarters in the installation of hydraulic and electronic components is carried out as well as final inspection. Approximately 300 work at three locations across China. The company contains 82 subsidiaries around the world and has worked on 2,600 projects.[2][3]

Herrenknecht AG
TypePrivate (AG)
IndustryHeavy equipment
Geotechnical engineering
Founded1975
FounderMartin Herrenknecht
HeadquartersSchwanau, Germany
Key people
Martin Herrenknecht, President & CEO
ProductsTunnel boring machines
Revenue1,137 € million (2018)
39.3 € million (2013)
Number of employees
5426 (2018)
DivisionsTraffic Tunnelling
Utility Tunnelling
Vertical Drilling Rigs
SubsidiariesHerrenknecht Vertical GmbH, Maschinen - Und Stahlbau Dresden, Herrenknecht Formwork Technology GmbH
Websitewww.herrenknecht.com

History

Martin Herrenknecht established the Martin Herrenknecht engineering company in 1975.[4] This became Herrenknecht GmbH (limited liability company) two years later with capital of 20 million euros.[5] By 1984, Herrenknecht had opened its first subsidiary abroad in Sunderland, England as Herrenknecht International Ltd.[6]

The company later acquired shares in Maschinen- und Stahlbau GmbH of Dresden in 1991. Following the merger of Maschinen- und Stahlbau GmbH, Herrenknecht became a joint-stock company (AG) in 1998 and expanded worldwide. At this time, the name was also changed to its current form.

To increase the capacity of the Elbe Tunnel in Hamburg, Germany (completed in 2002), the firm used a 14.20m diameter TBM, which was then the largest in the world.[7] The boring of the famous Gotthard Base Tunnel in Switzerland used the firm's machinery, and was completed in 2009. Eight £10 million tunnel boring machines were commissioned for the 13 miles of Crossrail which is under London in 2011.[8] The cutting-heads are 6.2 metres across.

In 2014 the company reported a record level of orders at 1.2 billion euros, aided by the expansion of Middle Eastern and Asian cities, especially with new metro systems.[9]

Products and services

The company works with the mining, transport and energy sectors. It builds TBMs for road, railway, metro and utilities construction.[10] In mining, the firm offers a range of automation technology that includes underground vehicles, conveyor belts and monitoring systems, as well as shaft drilling equipment.[11] Oil and gas pipelines, fossil fuel exploration, geothermal energy equipment and electricity tunnels make up its business with the energy industry.[12] Its drilling rigs can reach 8 kilometers underground and its TBMs range in diameter from 10 cm to 19 meters.[13][14]

Other services include tunneling personnel, spare parts/refurbishment, installation, rental and re-use TBMs.[15] As an international company, 90% of its sales were to the export market as of 2015.[16]

  • The rotor of TBM at the Kozhukhovskaya Line construction site in Moscow
  • Tunnel boring machine (TBM), Buenos Aires
  • TBM in Buenos Aires
  • Model of TBM, Gotthard Base Tunnel exhibition
  • Model of TBM (side view), Bauma 2016
  • Model of TBM (front view), Bauma 2016

References
  1. "Our employees - Herrenknecht AG". www.herrenknecht.com. Retrieved 2015-06-08.
  2. "Facts & Figures - Herrenknecht AG". www.herrenknecht.com. Archived from the original on 2014-12-02. Retrieved 2015-06-08.
  3. "Company - Herrenknecht AG". www.herrenknecht.com. Retrieved 2015-06-09.
  4. "History - Herrenknecht AG". www.herrenknecht.com. Retrieved 2015-06-08.
  5. "Register portal". www.handelsregister.de. Retrieved 2015-06-09.
  6. "Filing history". beta.companieshouse.gov.uk. Retrieved 2015-06-09.
  7. "Fourth Elbe Tunnel, Hamburg, Germany" (PDF). www.wf-ingbau.de. Archived from the original (PDF) on 2015-09-15. Retrieved 2015-06-08.
  8. Topham, Gwyn; Correspondent, Transport; Schwanau, in. "Crossrail unveils German machines that will bore into the heart of London". the Guardian. Retrieved 2015-06-08.
  9. Zeitung, Badische. "Wirtschaft: Rekordniveau: Tunnelmaschinenbauer Herrenknecht legt kräftig zu - badische-zeitung.de". Retrieved 2015-06-09.
  10. "Tunnelling - Herrenknecht AG". www.herrenknecht.com. Retrieved 2015-06-08.
  11. "Mining - Herrenknecht AG". www.herrenknecht.com. Retrieved 2015-06-08.
  12. "Exploration - Herrenknecht AG". www.herrenknecht.com. Retrieved 2015-06-08.
  13. "Herrenknecht Tunnelling Systems USA Inc. | International Pipeline Exposition". internationalpipelineexposition.com. Archived from the original on 2015-09-14. Retrieved 2015-06-08.
  14. "Facts & Figures - Herrenknecht AG". www.herrenknecht.com. Archived from the original on 2014-12-02. Retrieved 2015-06-08.
  15. "Services - Herrenknecht AG". www.herrenknecht.com. Retrieved 2015-06-08.
  16. "Herrenknecht baut die grössten Tunnelbohrmaschinen der Welt: Der Bezwinger des Gotthards". Neue Zürcher Zeitung. Retrieved 2015-06-08.
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