Performing a Webbing Sling Drag thumbnail

Performing a Webbing Sling Drag

A webbing sling offers a practical and reliable alternative to the use of wire rope for lifting and handling needs, and even offer some great benefits in applications that wire rope cannot. One such application is to perform a webbing drag sling; extremely useful in industries such as the emergency and rescue services. We explore this further below in this article.  Continue reading

Wire Rope Grips – High Endurance thumbnail

Wire Rope Grips – High Endurance

Wire ropes are an extremely strong, reliable alternative to many other solutions on the market such as chains. Their versatile nature allows them to be complete with many end fittings and terminations to be used in a variety of different settings, industries, and applications. Below we examine one specific end termination; a high endurance rope grip. Continue reading

Storage Advice and Tips for a Web Sling thumbnail

Storage Advice and Tips for a Web Sling

The various types of webbing slings that we manufacture at Rope Services Direct Ltd are all rigorously tested before dispatch, and use some of the highest quality materials available on the market. However, due to the intense stress that these products go through with heavy lifting, it’s important that you take proper steps to ensure that you maintain the efficiency and reliability of your web sling, as well as the safety of all those involved in the lifting process. Below we list some storage advice and tips for webbing slings. Continue reading

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Wire Rope Safety Checks

The steel wire ropes that Rope Services Direct produce are extremely sturdy, robust, and reliable, and therefore maintain a high level of efficiency. The way in which they are manufactured results in a rope that is comprised of many different metal wires and strands interwoven with each other to create one solid rope. However, as with any rope, the wires can become subject to damage, deformation, and deterioration through stress, over-use or corrosive agents. We examine below the safety checks that you should have in place for your steel ropes.  Continue reading

Rope Services Direct Ltd  Glossary of Terms thumbnail

Rope Services Direct Ltd Glossary of Terms

Here at Rope Services Direct we realise that the wire rope industry can be “jargonised” at times. Therefore we have produce this Rope Services Direct Ltd  Glossary of Terms article which we hope will prove valuable in case we use a term which may not be readily recognisable.

Rope Services Direct Ltd  Glossary of Terms

Abrasion – frictional surface wear that the wires have suffered.

Aggregate Strength – the total strength of the lifting medium which is worked out by totalling the individual breaking strengths of each strand.

Balustrades – a balustrade is a railing that can either be used to prevent people from falling or as a decorative instalment, balustrades are commonly used in stairways or in garden decking. We supply a number of balustrade fittings, such as rigging screws and swage forks, as well as the rope to accompany it.

Bending Stress – the stress that a rope will suffer if bent or curved.

Breaking Strength – Also meaning actual strength, this is the ultimate load at which a sample of the material being tested breaks.

Cable – cable is a term that is loosely applied to rope and wire strands.

Cargo Straps and Ratchet Straps – strong straps that are used to tie down cargo.

rope services direct glossary of terms

One of the many uses for the material

 

Cord – the definition for small sizes of fibre rope.

Core – the centre of a rope, around which the strands are laid.

Corrosion – when part of the wire in the rope has chemically decomposed due to moisture, acids, alkaline or some other form of destructive agent.

Efficiency – the ratio of the material’s aggregate breaking strength and its actual breaking strength.

End Termination – the end part of the lifting piece which has been permanently fitted with a tool that can connect it to the load.

Fibre Centre / Core – rope that has a centre / core comprised of vegetable or synthetic fibre.

Fibre Rope – wire-based rope that is made from fibre which has been twisted into yarns. We stock nylon, polyester, and polypropylene fibre rope.

Fitting – any functioning accessory that has been attached to the end of a rope, acting as its end termination.

Galvanized Steel – galvanized steel is steel that has been covered with a protective zinc coating to prevent rusting. This is different to stainless steel in that the steel itself would rust without being galvanised, whereas stainless steel naturally does not rust. Galvanised steel is cheaper than stainless steel, and is also stronger.

Inner Wires – refers to all wires of a strand, excluding the outer wires or cover wires.

Lifting Gearlifting gear is equipment that can be used to lift heavy loads, which include manual chain blocks, lever hoists, and push travel girder trollies. Rope Services Direct are a sister company to Lifting Gear Direct Ltd.

Line – another term for the lifting medium.

Outer Wires – refers to all wires on the outer layer of a rope.

Rope Splicing – the joining of two ropes or two parts of the same rope by untwisting the two separate parts and weaving them together. This is done to form a stop at the end of the line, for forming a loop or an eye in the rope, or to join two ropes together.

Stainless Steel – stainless steel is a type of steel that contains chromium, and is, therefore, resistant to rust, tarnishing or stains.

Wire Rope – a type of cable which consists of several strands twisted around a central core to form one robust piece of rope.

rope services direct ltd glossary of terms 2

We have many rope assemblies for sale here at Rope Services Direct

Rope Assembliesa rope assembly is rope that is supplied complete with end fittings, for example slings or gym cables. This means that the product can be used instantly for all of your lifting needs.

Rope Fittingsrope fittings are the end parts for the lifting piece. These fittings include rope grips, thimbles and turn buckles / rigging screws. All fittings we supply are available in galvanised steel and stainless steel options.

Webbing Products – a webbing product is a sling, strap or strop that has been manufactured by weaving fabric together, allowing for greater flexibility. We stock round slings, web slings, poly prop slings and disposable / one-way slings, and manufacture to your requirements.

 

Feel free to contact us about wire rope

Need some more information on the products we sell or what various terms mean? Get in contact with one of our team here, we will add new terms to this glossary as new requests are made.

 

 

 

Image Credit: Vita Vilcina
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What is Wire Rope

What is Wire Rope – we answer the question

Here at Rope Services Direct we know that many readers will already know much of the information in this article but in case you ever wondered we ask the question – what is wire rope- This is a general guide which we hope you find useful.

A definition

Essentially a definition is a group of wire strands twisted around a central core. They are most frequently made of alloy steel though stainless steel varieties are also commonplace and is renowned for its strength and abrasion resistance qualities.

Elements of the material

What is rope and how is it constructed – there are various elements to the material, we have summarised these in this section:

  • Core – There is a central axis (or core) which all the strands are helically twisted around. The core can consist of fibers, wire strands, synthetic materials (e.g. hemp or sisal) or even a rope used as the core (i.e. a rope within a rope)
  • Strands – When a group of wires are twisted together they become a strand. The wires need to all be in the same direction and laid helically around the central core. The strands can be applied in one or more layers
  • Wire – Each individual rod of steel is called a wire which are twisted together to form a strand.

There is a wide variety of available with different constructions, these have changed over the years to comply with modern standards.

what is wire rope construction

A useful chart showing rope of the past, present and future

 

Why it is actively used

A main benefit of using the material is that it is extremely strong and is also very cost-effective. Today it is also very corrosion resistant and can also cope well in extremes of weather conditions (both hot and cold). Historically steel chains had been used but they had a history of failure, which was sadly sometimes catastrophic. Whereas with steel chains one flaw was a problem with rope whilst still a problem other strands will take an increased load until the fault is found on an inspection.

Sizing conventions

All rope is sold and designated with two numbers; these numbers are used worldwide as a sizing convention for the material:

  • First number – The first is the number of strands
  • Second number – The second refers to the number of wires within each strand

So for example:

1)    A 7×19 rope consists of seven strands with nineteen wires per strand

2)    A 7×7 rope consists of seven strands with seven wires per strand

what is wire rope a 7x19 wire rope

7 x 19 rope available from Rope Services Direct

The actual rope selected will vary according to the specific task that the material needs to do, visit our stainless steel rope page for further information. The most popular sizes sold by Rope Services Direct are:

  • 19 x 7
  • 6 x 36
  • 6 x 19
  • 7 x 19
  • 1 x 19 and
  • 7 x 7

Various diameters are available depending upon the precise requirement for each size of rope.

Rope lay

There are various ways that it can be laid:

  • Ordinary hand lay – With this lay the outer layer of wires which form the strand are laid in the opposite direction to the layers of strands below
  • Lang’s lay – A Lang’s lay is where the outer layer of wires are applied in the same lay direction as the strands in the rope
  • Left hand lay – The strands are twisted in a left hand direction around the central core.
  • Right hand lay – The strands are twisted in a right hand direction around the central core.

Rope Services Direct – your one stop shop

We hope we have answered the question – what is the material ? Whatever your requirement, Rope Services Direct is your one stop shop for all of your requirements. Why not call us on 01384 78004 with any questions you may have or you can complete our contact us page instead.

 

 

Image Credit: Bridged Hall