With cyclic tunnel driving, the required profile must be produced as accurately as possible to guarantee economical success of tunnel construction. Larger or smaller profiles are very costly due to additionally required concrete or complex re-profiling. The deployment of motorised laser systems guarantees optimal profile accuracy combined with high operating convenience.

Totalstation as part of a motor laser system on the side wall

The easy to handle and robust systems make the laser setting out lists, which are customary when using straight lasers, superfluous and thereby minimise the danger of errors through inaccurate chainage data or mistakes, particularly in curves.