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Tag Archives: SaarGrundbau GmbH & Co KG

Microtunnel boring machine breaks new ground with mineral oil-free hydraulic fluids from the Kamen specialists

The Saarbrücken civil engineering contractor SaarGrundbau has successfully completed a tunnelling project using a Herrenknecht AVN 1200 C micro boring machine running on biodegradable hydraulic fluid from the Kamen-based company Fluid Competence. This particularly challenging engineering project involved driving a 96 m-long tunnel with simultaneous casing at a gradient angle of 34.60°. One particular section along the route of the ...

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