Starlift xtra wire rope has one of the highest strength to diameter ratios on the market.
Wire rope ratings strength.
Wire rope slings wire rope environmental considerations.
Basket hitch capacity based on minimum d d ratio of 25 1.
1 use only with 6 strand wire rope.
Efficiency rating depends on rope size and core type.
Minimum sling length when using standard eyes.
Rated load based on pin diameter no larger than one half the natural eye length or not less than the nominal sling diameter.
And diameter of curvature around which the sling is bent.
Rated capacity is based on nominal wire rope breaking strength.
Cordage instutitute uses refernece size number which is the approximate circumference of the rope.
Nominal strength in kg.
For choker hitch the angle of choke shall be 120 degrees or greater.
F force weigh t n m mass kg g acceleration of gravity 9 81 m s2 maximum safe mass for a 3 8 wire rope where the safe load is 10 9 kn can be calculated as.
Nominal strength in pounds.
D d ratio is the ratio of the diameter.
You ll likely see two different ways to measure the breaking strength of wire rope.
A fitting having an efficiency rating of 90 may very well develop 100 of the rope s catalogue breaking strength because the rope s actual breaking may very well be 5 15 higher.
Minimum breaking strength refers to the smallest load that will pull a piece of wire rope apart.
Dry strength shock load absorption ability.
Asme b30 5 mobile and locomotive cranes requires a design factor of 3 5 for 6 strand hoist ropes.
Splicing or end attachment efficiency.
The strength of the sling is decreased.
1 ton 2 000 lbs.
Strength breaking tenacity dry grams denier wet strength vs.
It is recommended not to exceed 1 3 3 1 design factor of the rope s strength to maintain a useful service life.
Aggregate strength refers to the collective breaking strength of all of the wires in a single cable when a manufacturer tests them individually.
Number of parts of rope in the sling.
Basket ratings are based on a minimum d d of 25.
Nominal strength in short tons.
Nominal strength in metric tons.
M f g 1 where.
The same standard requires a design factor of 5 0 for rotation resistant ropes.
