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Tail Brushes

To prevent the entry of mortar inside the TBM shield steel brushes are used. By grease pressure injection it works as a barrier, thus counteracting the mortar’s pressure which is injected through the segments.

For its manufacture, Bartz has developed a manufacturing technology that offers a solution to all the key points required for this product, so that it can fulfill its function of closing, without causing sheet breaks, hair loss or lack of elasticity on the plates of the housing.

We guarantee this function using carbon steel strips of high elasticity and excellent resistance to erosion, two-way brass wire with tensile strength exceeding 2500 MPa, and an appropriate design to facilitate assembly.




BARTZ · Avda. de los Artesanos, 52 · 28760 Tres Cantos (Madrid) · Tel: (+34) 91 803 12 12