Questo sito web utilizza i cookie. Utilizzando il nostro sito l'utente acconsente a tutti i cookie in conformità con la normativa vigente

Strands

The strands provide all the tensile strength of a fiber core rope and over 90% of the strength of a typical 6-strand wire rope with an independent wire rope core. They are the most simple element of ropes.
Characteristics like fatigue resistance and resistance to abrasion are directly affected by the design of strands.
In most strands with two or more layers of wires, inner layers support outer layers in such a manner that all wires may slide and adjust freely when the rope bends.

The basic strand constructions are here illustrated.

Filler wire

This construction has two layers of uniform-size wire around a center with the inner layer having half the number of wires as the outer layer.
Small filler wires, equal in number to the inner layer, are laid in valleys of the inner layer.

Continue Reading

Warrington

This construction has two layers of wires around a center with one diameter of wire in the inner layer, and two diameters of wire alternating large and small in the outer layer.
The larger outerlayer wires rest in the valleys, and the smaller ones on the crowns, of the inner layer.

Continue Reading

Seale

This construction has two layers of wires around a center with the same number of wires in each layer. All wires in each layer are the same diameter. The strand is designed so that the large outer wires rest in the valleys between the smaller inner wires.

Continue Reading

7-wires

The most common example of the single layer construction is a 7 wire strand. It has a single-wire center with six wires of the same diameter around it.

Continue Reading