Wire Rope Cores

The core of a wire rope is the central member around which the main strands are laid. It'sprincipal function is to support the strands, and maintain them in their proper position when loads are applied. The three types of cores commonly used in wire ropes are independent wire rope cores (IWRC), wire strand cores (WSC), and fiber cores (FC) of either natural or synthetic fiber.

1）Independent Wire Rope Cores (IWRC)

This is a separate wire rope used as a core in the main wire rope.

2）Independent Wire Strand Core (IWSC)

Asingle strand can be used as the core in a wire rope. The wire strand core may be of the same construction as the outer strands, or of defferent construction. A 6-strand rope with a wire strand core of a different construction from that ofthe main strands is called a 6-strand rope with WSC. If the core is ofthe same construction, the rope is ususlly calleda 7-strand rope-for example, 7x7or7x19. Wire strand cores are limited to standing ropes, and small diameter running ropes.

3） Fiber Core (FC)

These cores are fiber ropes, made from either natural fibers such as manila, sisal, jute, or cotton or synthetic fibers such as polypropylene or polyethylene.