ROPE CORES FORM A FOUNDATION FOR THE STRANDS
The primary function of the rope’s core is to serve as the foundation for the strands – to keep the rope round and the strands properly positioned during operation. Your choice of core will have an effect upon the rope’s performance.

THREE TYPES OF CORES ARE COMMONLY USED:
1.FIBER CORE  Polypropylene is standard, but either natural sisal (or hemp) fiber or other man-made fibers are available on special request.

2. INDEPENDENT WIRE ROPE CORE  Literally an independent wire rope with strands and a core, called IWRC. Most wire ropes made with steel core use an IWRC.

3. STRAND CORE  A strand made of wires. Typically, strand cores are used in utility cables only.