Date: April 2023
Categories: Rail / Tunnel
These prefabrication molds are used to manufacture slabs for the renovation of a ballastless tunnel of the Rhaetian Railway (Canton Graubünden – CH).
For the manufacture of ballastless tunnel renovation slabs
Concrete elements used for railway applications require dimensional accuracy in the mm range and angular accuracy in the sub-degree range.
This constraint led us to implement a mixed solution, combining the precision of laser cutting with themachining of 3D “pockets” produced by a company specializing in the machining of plastic injection molds.
Delayed demoulding : Self-compacting concrete
Simultaneous production quantity: 1 piece per day
Technical difficulties :
Dimensional tolerances in the mm range
Integration of 5-axis CNC-machined parts, to achieve the precision of a plastic injection mold.
Delivery country: Switzerland, Canton of Graubünden
Destination: Renovation of a railway tunnel
