What is the choker capacity (vertical) for cable laid wire rope slings?

What is the choker capacity (vertical) for cable laid wire rope slings?

• A. 60% vertical
• B. 75% vertical
• C. 80% vertical
• D. 70% vertical

Answer: (D)

When a cable laid wire rope sling is used in a choker hitch, the load path goes through a tight wrap around the load, which introduces extra friction and a sharp bend. This reduces how much load the rope can safely carry compared to a straight vertical pull. For this type of sling, the vertical choker capacity is 70% of the sling’s rated (straight) capacity. So, the sling can safely lift about 0.70 times its rated capacity in a vertical choker configuration. The remaining percentages correspond to other hitch types or rope constructions, but for a vertical choker with cable laid rope, 70% is the correct factor.

When a cable laid wire rope sling is used in a choker hitch, the load path goes through a tight wrap around the load, which introduces extra friction and a sharp bend. This reduces how much load the rope can safely carry compared to a straight vertical pull. For this type of sling, the vertical choker capacity is 70% of the sling’s rated (straight) capacity. So, the sling can safely lift about 0.70 times its rated capacity in a vertical choker configuration. The remaining percentages correspond to other hitch types or rope constructions, but for a vertical choker with cable laid rope, 70% is the correct factor.