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This video provides an animation of a double shield TBM in operation:
Top Double Shield TBM Manufacturers
- Herrenknecht AG (Germany): A market leader offering Double Shield TBMs designed for efficiency in mixed rock conditions, featuring telescopic shields and advanced segment erectors.
- The Robbins Company (USA): Known for pioneering Double Shield technology, providing machines that handle hard rock with high-speed segment installation.
- China Railway Hi-Tech Industry (China): A significant manufacturer that develops, for example, Double-Shield TBMs for large-scale water diversion projects.
- Kawasaki Heavy Industries (Japan): Known for robust and durable TBMs suitable for difficult underground conditions.
- Mitsubishi Heavy Industries (Japan): Specializes in high-tech, automated TBM solutions.
- TunnelPro (Italy): Focuses on specialized TBM technology, stemming from SELI’s original design in collaboration with Robbins.
This video demonstrates the process of segment installation in a tunnel boring machine:
Key Features of Double Shield TBMs
- Telescopic Shield: Allows simultaneous boring and segment installation to improve speed.
- Dual Thrust System: Machines can use both main thrust cylinders (bracing against the rock) and auxiliary cylinders (pushing off the segment lining).
- High Performance: Ideal for long, high-speed rail or water projects through varied geology.
This video provides a detailed overview of the components of a Robbins Double Shield TBM:
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Web results
Double Shield - Tunnel Boring Machines
The Robbins Company
https://www.robbinstbm.com › products › double-shield
The Robbins Company
https://www.robbinstbm.com › products › double-shield
A Double Shield TBM consists of a rotating cutterhead mounted to the cutterhead support, followed by three shields: a telescopic shield.Read more
Double Shield TBM
Herrenknecht AG
https://www.herrenknecht.com › products › productdetail
Herrenknecht AG
https://www.herrenknecht.com › products › productdetail
Continuous tunnelling at maximum speed: the Double Shield TBM combines the functional principles of Gripper TBM and Single Shield TBM.
Double Shield TBM
TunnelPro
https://tunnelpro.it › double-shield-tbm
TunnelPro
https://tunnelpro.it › double-shield-tbm
Double Shield TBM. The Double Shield (DS) TBM concept was designed and patented in 1971 by SELI, TunnelPro's parent company, in cooperation with Robbins.Read more
Videos
Web results
DOUBLE SHIELD TBMs
The Robbins Company
https://www.robbinstbm.com › uploads › 2017/05
The Robbins Company
https://www.robbinstbm.com › uploads › 2017/05
PDF
Robbins Double Shield TBMs are the long-haul specialists of the tunnel boring world. Since their development in 1972, Double Shield machines have.Read more
2 pages
Top Double Shield Tunnel Boring Machine Companies & ...
LinkedIn
https://www.linkedin.com › pulse › top-double-shield-tu...
LinkedIn
https://www.linkedin.com › pulse › top-double-shield-tu...
Oct 8, 2025 — Soilmec: Italian manufacturer offering a broad range of tunneling equipment, including TBMs. Mitsubishi Heavy Industries: Japanese vendor ...Read more
Dual Mode Tunnel Boring Machine - NHI Global
nhiglobalequip.com
https://www.nhiglobalequip.com › product › dual-mod...
nhiglobalequip.com
https://www.nhiglobalequip.com › product › dual-mod...
Choose NHI Dual Mode Tunnel Boring Machine for high-efficiency industrial performance, we offer durable, customizable solutions with global EPC/OEM support.
First Double-Shield Hard Rock Tunnel Boring Machine ...
中国中铁
https://www.crecg.com › zgztywz
中国中铁
https://www.crecg.com › zgztywz
It has a boring diameter of 11.93 meters, a total length of approximately 180 meters, and a total weight of about 3,550 tons. The total tunneling task spans ...Read more
People also ask
What tunnel company does Elon Musk own?
The Boring Company
The Boring Company aims to solve traffic issues with fast, low-cost tunnel systems. Notable projects include the LVCC Loop, Vegas Loop, and R&D Tunnel. The Boring Company sold $10 million worth of "Not-A-Flamethrowers." Elon Musk founded the company to improve urban transportation infrastructure.
The Boring Company: Elon Musk's Tunnel Vision and Product Innovation
Investopedia
https://www.investopedia.com › what-is-the-boring-com...
Investopedia
https://www.investopedia.com › what-is-the-boring-com...
What are the top boring machine manufacturers?
Top "Boring machines" Companies
- Barbco. Privately Held. Founded 1989. USA. ...
- American Augers. Subsidiary. Founded 1970. USA. ...
- LESLIE TECHNICAL SERVICES LTD. n/a. Founded date unknown. Unknown. ...
- Maxi-Bore. Privately Held. Founded date unknown. USA.
Top "Boring machines" companies - VentureRadar
VentureRadar
https://peterson.ventureradar.com › keywords › "Boring ...
VentureRadar
https://peterson.ventureradar.com › keywords › "Boring ...
Who owns Herrenknecht?
Martin Herrenknecht founded tunnel construction machine-maker Herrenknecht AG, in 1977. He owns almost 96% of the business, with the remaining shares held by his brother. Herrenknecht had sales of 1.2 billion euros in 2023, its most recent financial disclosure.Mar 10, 2026
Martin Herrenknecht - Forbes
Forbes
https://www.forbes.com › profile › martin-herrenknecht
Forbes
https://www.forbes.com › profile › martin-herrenknecht
Web results
DeadSeaPower.Com - Tunnel Boring
Dead Sea Power Project
https://deadseapower.com › tunnel_boring
Dead Sea Power Project
https://deadseapower.com › tunnel_boring
Both, Herrenknecht and Wirth, will supply two Double Shield Machines (Æ 9.51 m). Each manufacturer will place one of its boring machines at the north portal ...Read more
