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By-pass Saas

Back-up installation for Gripper TBM with conveyor belt.


The characteristics of Rowa’s supply scope lie in the development  of an optimized back-up system making use of existing components.



The concept of a back-up installation consists of an anchor boring  sledge, a shotcrete sledge, a lining segment- /track installation  bridge and an apparatus- /double rail rolling platform supported  by auxiliary rails, with the necessary superstructures and a direct  rail to the segment lining construction site. After completion of  the boring stroke, the TBM pulls the back-up train by means of a  towing cylinder.

Umfahrung Saas


Saas Nachläufer

Back-up installation

Saas Uebergabeband

Transfer back-up conveyor into muck car
JW Kontakt


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Jost Wenk will answer your question.
Phone +41 55 450 20 30

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