Single Shield Rock TBM

Single Shield Rock TBM

Built to defeat and protect in rock grounds

Our Single Shield Rock TBMs are engineered to tackle the most challenging rock conditions (from Shale to Granite (30-350 MPa) while keeping your crew safe while tunneling through unanticipated fractured rock and soft grounds. Versatile when navigating through tunnel linings that are curved due to the design of the shield lengths.

  • Offers the flexibility of installing different primary linings as the rock changes, inclusive of steel ribs and pre-cast concrete segments
  • Heavy Duty structures with Chromium Carbide Cladding create a rigid support for the Lovsuns Disc Cutters ensuring forces are transmitted where needed.


Soft to Hard Fractured Rock, with Soil Changing Grounds


  1. Cuttinghead – Drum Type
  2. Ground Conditioning System (GCS)
  3. Muck Ring
  4. Main Drive
  5. Stabilizer Pads
  6. Articulation Cylinders
  7. Belt Conveyor
  8. Arm Erector
  9. Tunnel Lining (Pre-cast concrete segments)