Tunnel Boring Machine Cylinders .

Hydraulic cylinders for shield-type tunnel boring machines (TBM), including main thrust and advance cylinders, segment erector cylinders and active shield articulation systems. Rated up to 35 MPa, individual thrust cylinders up to 600 t, long strokes and high side loads from 6–18 m diameter shields. Used in metro construction, railway and utility tunnels, underground hydraulic infrastructure.