| 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. |