AVN-T: The
trick with the door.

Access to the tunnel face. 

This machine type can be entered via the free center drive through a door leading to the working face, which allows for obstacles such as sheet piles, steel girders, boulders, etc. to be removed. With this new possibility of replacing worn cutter rings, tunnelling in rock can be extended to retention lengths of over 500m.

 

Download
data sheet AVN 1200 TB - AVN 1800 TB

data sheet AVN 1200 TC - AVN 1800 TC

 

GEOTHERMAL ENERGY - SMART EXPLOITATION.

The Herrenknecht subsidiary "Bohrtec Vertical" develops, builds and sells vertical drilling rigs for the exploitation of shallow geothermal energy.

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