Fibre Rope

Fibre Rope

Nobles is a leading stockist of fibre ropes for all applications.

From general purpose high tenacity ropes, high technology mooring ropes, to the latest rope technologies of UHMWPE (Dyneema fibre) ropes, Nobles can ensure you have the best possible fibre rope for your application.

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Fibre rope constructions

Fibre rope constructions

Characteristics & properties of fibres - Three Strand Hawser Laid Rope

THREE STRAND HAWSER LAID ROPE

Three strands twisted or laid together to form the rope. This construction is still the most commonly encountered. Available in sizes 3mm diameter upwards.

Characteristics & properties of fibres - Solid Braided Cords

SOLID BRAIDED CORDS

Solid braided cords are constructed from either 12 or 18 strands braided together normally over a central core. Unlike plaited cords, the strands lie in one direction in a spiral configuration. Available in sizes 3mm-12mm diameter.

Characteristics & properties of fibres - Four Strand Shroud Laid Rope

FOUR STRAND SHROUD LAID ROPE

Four strands are normally laid over a central core. Less common nowadays, this rope is 11% weaker than the equivalent sizes in 3 strand.

Characteristics & properties of fibres - Eight Strand Square Rope

EIGHT STRAND SQUARE ROPE

The balance achieved by plaiting four left hand four right hand strands. This results in a tough, kink resistant rope providing increased flexibility wet or dry. Available in sizes 16mm diameter and above.

Care, Handling and Maintenance

Care, Handling and Maintenance

 

Inspection

Rope should always be inspected prior to use to ensure there is no excessive wear, abrasion or cuts that could cause the rope to break prematurely.

Care in Use

A coil should be suspended and the rope taken from the outside of the coil by rotating it. In this way "turn" in the rope will be avoided.

Care, handling & maintenance - Image 1

  1. Where a proper mandrel or turntable is not available, it is advisable to uncoil the rope from the centre of the coil. In this way the protective wrappings may be retained around the coil until the complete coil has been withdrawn. For the normal right hand lay rope ("Z" laid), uncoiling must always take place in an anti-clockwise direction. (This applies whether uncoiling from inside or outside of the coil.) Clockwise uncoiling of rope will insert twist and increase the danger of kinking.
  2. Before cutting the desired length of rope, apply whippings close to each side of the intended cut. Failure to observe this precaution could easily render a cut length unsuitable for its intended purpose because of excessive unlaying of the rope.
  3. Store ropes in a well ventilated dry atmosphere away from heat, strong sunlight and corrosive substances.
  4. Avoid contact with chemicals unless the rope has been supplied in a material resistant to a particular chemical environment.
  5. Don't drag ropes over sharp, rough or dirty surfaces as abrasive particles can penetrate the rope and damage the fibres.
  6. Avoid the build-up of excessive turn. Kinks cause permanent damage and loss of strength. Work excessive turn over end of rope. Never load rope to remove kinks.
  7. Avoid knotting a rope for the purpose of forming an eye. Splice the rope in the normal manner. Knots can reduce a rope's strength by up to 50%.
  8. When used on pulleys, ensure pulley diameter is at least 5 times rope diameter. Furthermore, the groove profile should support approximately one third of the rope's circumference. Incidence of rope wear and distortion will increase if these suggestions are not adhered to.
  9. Avoid unnecessary chaffing. Protect any part of the rope in contact with sharp edges or rough bearing surfaces.

Care, handling & maintenance - Image 2