A wire rope sling with a strength of 10 000 pounds and a total working load of 2 000 pounds has a design factor multiplier of.
Wire rope design factor working load.
At 3000 m 9840 ft the weight of a 5 in.
Nominal strength in metric tons.
The design factor is the ratio between the ultimate strength of the rope and the recommended working load limit wll.
Strands the design arrangement of a strand is called the construction.
We provide wire rope chain synthetic slings cargo control hardware.
0 13 m wire rope is about the same as its 170 tonne payload.
Nominal strength in pounds.
Nominal strength in kg.
Cable diameter breaking strength working load limit 5 1 design factor.
If a particular rope has a rated strength of 100 000 lbs.
Recommended safe working load a 5 1 design factor lbs.
Rated capacity in tons of 2 000 lbs.
1 partslings vertical choker or vertical basket.
And is working under an operating stress of 20 000 lbs it has a rope strength design factor of 5.
Rated capacities shown apply only to 6x19 and 6x37 classification wire rope.
Swl or wll are calculated by dividing mbl by a safety factor sf.
The design factor is the ratio of the breaking strength of the rope to the maximum working load.
The typical design factor for wire rope used as a sling is 5 1.
Working load limits hand tucked splice fiber core iwrc.
Wire rope must have the strength required to handle the maximum load plus a design factor.
The safe working load is the mass that lifting equipment usually a wire cable can safely hold without fear of breaking.
At a depth of about 6000 m 19700 ft the safe working load swl of the steel wire rope is entirely used up by its self weight leaving zero payload capacity.
To calculate the swl you ll need to know the diameter of the rope in inches and apply it to the formula swl d x d x 8.
This load represents a force that is much less than that required to make the lifting equipment fail or yield also known as the minimum breaking load mbl.
It is operating at one fifth or 20 of its rated strength.
Nominal strength in short tons.
Rated capacities based on design factor of 5.
The individual wires may all be the same size or a mixture of sizes.
Rope strength design factors.
The result is the safe working load in tons.
