Rock tunnel boring machines

Rock tunnel boring machines
Specific products and lubricants for rock tunnel boring machines: sealants, protection pastes for the main bearing, greases, hydraulic fluids, ground treatments and additives for backfill grouting.


Rock tunnel boring machines progress through hard rocks without need for confinement. Nevertheless, on some sites the filling of the annular gap requires the use of a suitable tail seal grease. Protection of the main bearing, hydraulics and boring additives are also essential to the correct operation of the tunnel boring machine.

CONDAT offers a complete range of specific products and lubricants for rock tunnel boring machines.

Associated services

In addition, CONDAT offers equipment suitable for facilitating implementation of our lubricants:

For more information about the products, their implementation, and a good match between the situation encountered and the solution to be considered, contact our technical experts in tunnel boring.

Products range