Tunneling machines
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Tunneling machines
Models by Herrenknecht
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What owners say about Herrenknecht
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Running the AVN 1200 on a recent DN600 bore through soft ground was smoother than expected. It maintains consistent thrust and steering, even with varying soil conditions.
Our AVN 2000 handled the DN1800 rock section well. When a cutter head seal needed replacing, the technical team guided us through it. Parts arrived quickly, keeping downtime minimal.
We've been using the Pipe Express for over four years now, after trying several other systems. Its smaller footprint is a major benefit on our congested city jobs. Installing 0.
Our previous machine struggled with the varied geology here. The Pipe Express handles soft ground and gravel under groundwater for 1.2m pipes without issue.