Single Shield Tunnel Boring Machine

When you have large sections of broken ground to bore through, your project risk can be significant. The Robbins Single Shield Tunnel Boring Machine provides the rock boring capability of a Robbins Main Beam TBM and protects against rock collapse like a Double Shield TBM, but with minimum shield length.

Unique Features of our Single Shield Tunnel Boring Machine :-
* Our Single Shield Tunnel Boring Machine have flat, low profile cutterhead to enhance face support in broken rock.
* Back-loading cutters for safer cutter changing in unstable rock conditions.
* Recessed muck buckets with grill bars to prevent ingestion of large rock blocks.
* Fast resetting propel cylinders.
* Skew ring to react cutterhead torque.
* Articulated cutterhead for steering.
* High-speed segment erector (single- or dual-arm depending on machine diameter) to install pre-cast concrete segments with precision.
* Short shield for a small turning radius and minimum exposure to trapping friction.
* Digital guidance system for continuous information on alignment