| Knight Industries follows material handling industry standards
in determining the capacity ratings for enclosed track overhead
rail systems. Each component (e.g. rail, hangers, trolleys,etc.)
is individually tested to establish its ultimate failure point.
From this number, a safe working load (based on a 5:1 safety factor)
is then assigned to the component. Each rail span length is then
tested to determine the maximum single point load required to achieve
a predetermined deflection based on a 1:350 ratio (1" of deflection
for each 350" of length). The recommended rated capacity chart
is based upon single point loading for the listed spans. The maximum
of 2500 lbs. is a function of the 5:1 safety for the component with
the lowest tested failure point (Note: The lowest failure point
is in the 15,000 lbs. (6804 kg) range. |