Tunnel Service Group

Standard diameter for urban utilities and pipelines

Suitable for soft ground, mixed ground and rock

Compatible with existing Herrenknecht tunneling equipment

For shaft size ø 4,57 mtrs (round shaft) or 4,5x3,5 mtrs (rectangular shaft)

Hydraulic system controlled via 37 pin cable

Direct-analog steering cylinders for better maintainability and lower sparepart cost

Low-pressure annulus nozzles and with automated switch to medium pressure cutter head nozzles for sticky soils

High-pressure nozzles for additional support in silk and clay

Emergency gate in case of slurry circuit problems when under ground

Compatible with UNS or other guiding systems

UBM 800-1100