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Single shield tunnel boring machine (TBM)
ø 9.5 m LOVAT

Cat Single Shield TBMs consist of a Cuttinghead, Forward Shell, Stationary Shell, Trailing Shield. The Single-Shield TBM is ideally suited for excavation of rock tunnels where a primary segmented lining is required.

The Single Shield TBM can also be provided in any of the available Operational Modes (Open, Semi-Pressurized and Pressurized) as well as include various ground conditioning options.

Cat Single Shield TBMs have been used on projects to excavate rock ranging in strength from 30MPa to 300MPa.
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