HT 30 drafting carriages have been designed for extreme working
conditions, by combining the robustness and lightness of the CRG to such
requirements that enable them to work with much bigger loads.
These carriages are equipped with anti-sliding braking blocks on the
carrying and pulling cable, and are controlled by radio controls: this
enables the translation along the line also when the load is not fully
retracted. The hydraulic system is equipped with an integrated recharging
system that accumulates power during the translations along the line and
safety valves. Four automatically opening and closing blocks prevent
it from derailing when moving on the guide rail and ensure stability
throughout the operation, together with an automated system that
promptly blocks the carriage on the carrying cable if the pulling cable
breaks, thus keeping the load safe.