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Wire Ropes
We are pioneers in the field of manufacturing high quality isi marked wire rope for construction, industrial wire ropes, lifting wire ropes, single strand ropes, ungalvanized wire ropes and round stranded ropes.

Know your `Wellworth’ Rope
Steel Ropes is a technical product and knowing the broad parameters can only be useful

Diameter
The diameter of rope is the diameter of its circumference, circumscribed to its normal section. This diameter is given in millimeters. Determining the Practical Diameter-

Measurements are taken at two points at least one meter apart.
Diameters are measured at 90° one from the other.
The average of the four values thus obtained is the practical diameter.
Usually the practical diameter is taken from a sample of straight rope not subjected to traction.
In special cases when the tolerance is less than 5 of the minimum guaranteed breaking strength.
The correct diameter is the greatest diameter of the rope or strand.
Construction of Rope / Wire Arrangement
The strand is the simplest construction. It consists of one or more layers of superimposed wires laid spirally around one or more centre wires or around a fibrous core. The construction of the strand is identified by the number of wires in the individual layers, starting from the outer one e.g. 12+6+1 or 15+9+FC. FC indicates a fibrous core. Distinction is made between strands with cross laid and equal laid wires.
Strands with Cross Laid Wires All the wires in this type of strand are of equal diameter and for geometrical reasons the number of wires decreases in each layer, starting from the outermost one, according to an arithmetical progression based on number 18 + 12 + 6 + 1 or 12 + 6+1. In cross laid constructions each layer of wire is laid up a separate operation with a different length of lay, the result being the crossing of the various layers of wires.
Strands With Equal Laid Wires In these constructions the pitches of the various layers of wires are identical as stranding is carried out in a single operation therefore, the contacts between wires are linear. Seale, Warrington and Filler strands belong to this construction. Wires of different diameters are required for these constructions. As for example
Seale 9 + 9 + 1
Warrington 6/6 + 6 + 1
Filler 12 + 6F + 6 + 1.
Single Strand Ropes are commonly called strands.
Round Stranded Ropes These have both the strands and the wires in the strands laid helically. It consists of a number of strands either laid around a fiber core or metallic strand or an independent wire rope core. They can be identified by the number to each strand. A rope with 6 strands, each having 9+9+1wires laid around a central fibre core is designated as 6 x 9 + 9 +1 + FC or more concisely 6 x 19 Seale + FC. If this same rope has an independent wire rope core, the designation will be 69 + 9+1 + IWRC. Should the strands also contain a fibre core then the rope will be known for example as 6x 12 + FC+FC or 6x 12 + 7FC. Lastly if the rope is formed of two or more layers of strands superimposed around a FC, then it will be known as 12 x 6 +1 + 6 x 6 +1 + FC or 18 x 7 + FC.
Centre Core of Wire Rope
This can be Steel Core, IWRC Independent wire Rope Core of a Fibrous core. Wherein Steel Core just refers to another Single Strand serving as the central core, the IWRC is a metallic rope having for example a construction designated by 7 x 6 +1 or 7 x 7.
The Core is said to be Fibrous or FC when we use a fibrous material