ZOLLERN GmbH & Co. KG

ZOLLERN offers main drives, screw drives, and erector drives for hard rock TBMs, earth pressure balance (EPB), micro TBMs and multi-mode TBMs up to 400 kW. 30% more compact design Torques up to 3 000...

In a mixed and unpredictable underground environment the increasing use of hybrid TBMs is one that goes with the territory. Where multiple machine types might have once been used for different...

Planetary gears are compact, possess a high power density and high efficiency given low construction space. They are mostly used for heavy-duty operation. Planetary gears are suitable for continuous...

Designed and manufactured by China Railway Engineering Equipment Group Co., Ltd. (CREG), the Tunnel Boring Machines (TBMs) CR-51 and CR-50 have successfully completed two 2814 m long tunnels in Kuala...

1 Stage reached in accomplishing the Kaiser Wilhelm Tunnel The 2-track Kaiser Wilhelm Tunnel, which opened back in 1879, is located on the Coblenz-Perl Moselle rail route between Ediger-Eller and...