Rope Suppliers

About Rope Suppliers and Rope Distributors Including: Braided Rope, Cordage, Cotton Rope, Kevlar Rope, Nylon Rope & Polypropylene Rope.

Rope suppliers and rope distributors, also known as cord, line, string or twine suppliers, has, for much of human history, been used in applications that require pulling and connecting. Many uses for rope suppliers and rope distributors exist throughout the world, especially in the marine, sailing, industrial, arborist, recreational, outdoors, rigging, safety and military industries. The smallest components of a rope are fibers, which, when twisted together, make yarn. Yarn, in turn, is twisted together to create strands, which are then twisted or braided together to create rope. Rope fibers can be either natural or synthetic; the best fiber to use varies by application. Some types of rope are naturally very strong and can handle heavy loads, although wire rope often supplants natural and synthetic ropes for the heaviest loads.

Natural rope types include manila, sisal, linen, jute and cotton. Manila is a very hard rope that is popular in construction because it is resistant to sunlight, stretches very little and will not melt when exposed to heat like some synthetic ropes. Sisal has less strength than manila but very good knot-holding ability, and thus is used in applications such as gardening and bundling where high strength is not a requirement. Cotton rope is very soft, pliable and easy to handle, but it is not as strong as other natural and synthetic ropes. Synthetic ropes, such as nylon, polyester, polypropylene, polyethylene, Kevlar and various co-polymer blends, tend to be stronger than natural ropes. Nylon is the strongest that rope suppliers and rope distributors use, and has a “memory” to return to its original shape after being stretched. Nylon rope also has very good shock absorption and is resistant to abrasion, sun and chemical damage. Applications for nylon rope include lifting and towing. Polyester rope, the most common rope used in the boating industry, does not stretch as well, absorb shock or last as long as nylon rope, but it has better resistance to abrasion and chemical damage. Another type, polypropylene rope, is the only rope that floats, and it is used as a divider in many pools. However, it has the weakest UV resistance and the lowest melting point of all the ropes, and should not be left out in the sun.

The two main types of rope construction are twisting and braiding. Twisting involves coiling three strands tightly in the same direction, although the yarn within the strands must be twisted in the opposite direction. This counter-twisting produces an all-around balanced rope that will stay together without kinking. Once twisting is complete, each end must be fused to prevent unraveling. Historically, twisting has been the most popular form of rope construction. However, in modern times most ropes have been braided. One advantage of braided ropes is that they do not spin or untwist while holding a load. Braided ropes are either single braided or double braided. Single braided ropes have no core, while double braided ropes have a core of either the same or a different material. Double braided ropes are stronger, but they cannot be spliced. Splicing is a useful way to create a joint between two ropes or two ends of the same rope by interweaving the strands together.

Proper care and storage should be implemented to extend the life of a rope and ensure its continued safety. Ropes need to be manually checked before and after each use for deformations and damage. If damage has occurred, such as fraying or a visible core, the rope should not be used. In the case of unraveling, a quick fix is to melt wax on the rope end, or, for a synthetic rope with a low melting point, to melt the end of the rope itself. The ends of natural fiber ropes can be tied together with twine to prevent further unraveling. It is important to keep ropes clean, because dirt, sand and small stones that get into a rope’s interior can cause abrasion. If a rope is dirty, wash it with clear water and dry it out of the sunlight. Your rope suppliers or rope distributors will tell you when not in use, a rope should be stored in a place of moderate temperature and low humidity. While in storage, keep ropes out of direct sunlight, to prevent melting, and away from corrosive chemicals.

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Types of Rope Suppliers

• Braided rope is made of three or more interwoven yarns.
  
• Cordage is the general term used to refer to any length of fibers, including ropes, cord, lines, and strings.
  
• Cotton rope is soft and pliable, but it does not have the strength of other rope.
  
• Kevlar rope is the brand name of the synthetic rope made by the DuPont company. Kevlar rope has more strength pound-for-pound than steel.
  
• Manila rope is a hard, natural fiber rope that is used for public utility construction. Manila rope will not melt under high temperatures like synthetic rope.
  
• Nylon rope is the strongest of all rope, and is useful in applications that require high shock absorption. When stretched, it “remembers” and returns to its original shape.
  
• Polyester rope is almost as strong as nylon rope, but it does not stretch as well. Polyester rope is popular in the boating industry.
  
• Polypropylene rope is an inexpensive, light-weight, popular all-purpose rope, but it is less strong than nylon and polyester rope, and will deteriorate the most quickly in sunlight.
  
• Sisal rope is a hard, natural fiber rope with less strength than manila rope. Common uses include applications in which strength is not a necessity, such as gardening.

Rope Suppliers Terms

Abrasion Resistance – A rope’s ability to hold up under internal and external wearing.

Acceleration Stress – Extra stress placed on rope due to increasing load velocity.

Bend – A knot that joins two ends together, from a single or two separate ropes.

Bight – A loop in any part of a rope.

Bitter End – When splicing or tying knots, the end opposite the end that is in use.

Blend – A rope’s composition of various synthetic fibers.

Bonding – A liquid coating on rope that prevents absorption of water and provides abrasion resistance.

Capstan – A rotating cylinder used to wind rope.

Cordage – A term that refers to rope, line or string with a small width.

Creep – The gradual increase of a synthetic rope’s length over time while under high temperature or load stress.

Elastic Recovery – The degree to which a rope will return to its original shape after being stretched.

Elongation – A rope’s deformation in the direction of the load.

End – The end of the rope that is in use.

Fiber – Natural or synthetic material that can be spun into yarn.

Flexibility – A rope’s agility and ease of handle under working conditions.

Hand – A rope’s feel, determined by touch.

Rigging – The ropes and apparatuses used on sailboats which transfer wind to the ship, moving it forward through the water.

Sliver – A continuous strand of overlapping parallel natural fibers that is ready for twisting.

Splice – The joining of two ropes by interweaving different strands and braids.

Strand – Yarn that is twisted together. A rope is made from strands that are twisted or braided together.

Strength – A measure of a rope’s ability to lift the load or do the work.

Tensile Strength – The load amount at which a rope will break under tension.

U.V. Resistance – A rope’s ability to resist damage from the sun’s ultraviolet rays.

Water Repellency – A rope’s ability to keep from absorbing water and swelling.

Yarn – Fibers that are twisted together.