DSI Hollow Bar System

The system is an “all in one” tool
for drilling, flushing, post- or simultaneous grouting, and finally
the load-carrying member itself. Installations in weak ground and
unstable borehole conditions represent no difficulty and are ideal
for the application of the DSI Hollow Bar System. 
Sandvik Ground Support has long-term experience in the design,
development, manufacturing, testing, and distribution of the 
DSI Hollow Bar System.