A WLL is a designated MBL rating capacity limit for a rope or rope sling which is determined by many dynamic factors and ultimately determined by the responsible qualified person supervising the use or handling the rope in the application. Determination of WLL and Design Factor (DF) must always have safety as its primary consideration.
Cortland recommends a standard 5:1 WLL on most of its rope products however, we know that many end users are applying WLLs lower than this.
Plasma sling Hitch Configurations will alter the vertical leg published MBL.