Wire Rope Weight Calculation Formula

Calculating breaking strength safe work load and weight of hawserlaid ropes calculation of approximate breaking strength b s and safe working load s w l for manila rope method of finding the breaking strength b s is to divide the square of the diameter of the rope in millimetres by 200.

Wire rope weight calculation formula.

As we all known. The relationship between mass and force weight can be expressed as. They are also much more resistant to crushing and slightly stiffer. Diameter in mm squared the weight in kg.

All diameters are measured in millimetres mm. Example maximum safe mass for a 3 8 wire rope. They have also offered an example of the strength of 3 8 wire rope that has a safe working load of 10 9 kn. Wire rope and chain are the important part of the hoist which are closely bound up with the safe work load now let s talk about how to calculate the swl of ropes and chains.

If you re working with a 1 5 inch diameter cable for example then the formula would be swl 1 5 2 x 8 or swl 2 25 x 8. Example of a diameter 24mm manila rope. F force weight in newtons. All weight are calculated in kilograms kg.

This calculation means the swl of a 1 5 inch diameter rope is 18 tons. M mass in kilograms. D represents the diameter of the rope in inches. F force weight n m mass kg g acceleration of gravity 9 81 m s 2 maximum safe mass for a 3 8 wire rope where the safe load is 10 9 kn can be calculated as.

To determine the strength the calculation m f g is used where. Warrington fig 1 is a parallel lay construction with an outer layer. Once you know the diameter of the rope you can apply it to the formula which is swl d 2 x 8. G acceleration of gravity 9 21 m s2 using this equation for the 3 8 wire rope you would calculate the.