Fingers are fully retractable
the opposite side of working direction under the effect of a higher
force than project condition.
can be useful when, for different reasons, operators uncounter
sometimes a crash problem in their line.
case of accidental crash, a
the column and signals the crush.
signal, can be detected by a laser sensor for
line in case of crush.
fingers completely retreat inside the column so neither column parts
nor elements are damaged.
Operators can easily reactivate fingers functionality everytimes.