Other synonyms include working load limit wll which is the maximum working load designed by the manufacturer.
Wire rope design factor working load.
At 3000 m 9840 ft the weight of a 5 in.
Nominal strength in short tons.
And is working under an operating stress of 20 000 lbs it has a rope strength design factor of 5.
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.
1 partslings vertical choker or vertical basket.
The rope strength design factor is the ratio of the rated strength of the rope to its operating stress.
5 when disposal materials are dropped more than 20 feet to an exterior location an enclosed chute must be used.
The individual wires may all be the same size or a mixture of sizes.
Rated capacities based on design factor of 5.
Strands the design arrangement of a strand is called the construction.
The safe working load is the mass that lifting equipment usually a wire cable can safely hold without fear of breaking.
The typical design factor for wire rope used as a sling is 5 1.
Rated capacity in tons of 2 000 lbs.
Recommended safe working load a 5 1 design factor lbs.
The design factor is the ratio between the ultimate strength of the rope and the recommended working load limit wll.
We provide wire rope chain synthetic slings cargo control hardware.
It is operating at one fifth or 20 of its rated strength.
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.
Cable diameter breaking strength working load limit 5 1 design factor.
0 13 m wire rope is about the same as its 170 tonne payload.
Swl or wll are calculated by dividing mbl by a safety factor sf.
Nominal strength in kg.
The result is the safe working load in tons.
The design factor is the ratio of the breaking strength of the rope to the maximum working load.
If a particular rope has a rated strength of 100 000 lbs.
Nominal strength in pounds.
Wire rope must have the strength required to handle the maximum load plus a design factor.
Rated capacities shown apply only to 6x19 and 6x37 classification wire rope.
Rope strength design factors.
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.
