The COMPACT model
Based on the standard HFR model,
it is generally offered in the
motorized version.
This model provides maximum
reduction through a system of
articulated removable spacers that
ensure wind and snow load
resistance when the tunnel is
extended.
The HFR COMPACT Model’s design
allows the tunnel to be significantly
reduced in length, up to 25%.
Basically, a 100 m deep
HFR COMPACT tunnel can be
shortened to approximately 25 m.