energy absorbers use a patented "metal bender" principle
for absorbing energy, which provides the means to
stop vehicles of varying weights and speeds. The
absorbers are primarily comprised of of a chamber,
a length of metal tape, and a series of offset pins.
As the metal tape is pulled through the series of
offset pins, the tape is bent back and forth beyond
its yield point. The process of bending the metal
beyond its yield point is the principal mechanism
for absorbing the energy of impact.
The absorbers utilize few moving parts, making them
virtually maintenance free. Following an arrestment,
the system can be quickly returned to service by
replacing the metal tapes with minimal time and effort.