what is wire rope sling manufacturer

In the case of the "U" shaped sling, lifting is accomplished by firmly attaching the eyes to a hook or hoist, though both ends are then simultaneously lifted in order to wrap around or cradle the supplies or finished goods to be lifted.

Unlike synthetic or fiber slings, wire rope offers increased resistance to wear and abrasion and can be used for both hot and cold materials as well as in corrosive applications such as those in marine, construction, aerospace, manufacturing, assembly, transport, shipping, and other industries where wire rope slings are commonly used. Wire ropes fitted with slings in these applications also serve to improve connectivity and prevent fraying of the rope.

Like stranded wire ropes, the slings that they attach too are strictly regulated and must be inspected regularly as mechanical failure puts both machinery and employees at serious risk. To prevent such disruptions, it is important to select the proper sling for a given application.

Slings are most commonly constructed simply by looping or folding the end of a wire rope back onto itself and holding it in place with a firm fitting such as a clamp. Alternatively, the folded segment of wire may be braided or twisted along the main body of rope and otherwise held in place through welding or similar processes.

The rope itself is comprised of cold drawn filaments that are twisted or braided into strands which in turn are helically wrapped around a core. The multilayered formation of wire rope acts as a safety measure as individual strands are more likely to fail than the rope as a whole, allowing the other strands to act as a backup.

Popular materials for wire rope and sling construction include aluminum, nickel alloy, bronze, copper, and titanium, although steel and stainless steel are the most common due to their increased strength and availability.

Additional considerations include the wire rope sling"s dimensions, fatigue strength, its ability to bend without distortion, to withstand abrasion, and environmental conditions as well as the intended use for the sling.

Wire rope is constructed of multiple strands of wire that are twisted and braided together to form a spiral design or helix. Once the separate wires are shaped into a solid form, they become a single wire with greater strength because the individual wires equalize pressure and have greater flexibility than the individual strands.

To further enhance the strength of wire ropes, they are grouped and wound together to produce cables, which adds to their usefulness as a means of support, ability to lift, and give structural stability.

A key factor in wire rope is the lay of the strands, which can be regular or lang. With regular lay, or right and ordinary lay, the strands are wound from left to right with the wires laid in the opposite direction of the lay of the strands. With lang lay, the wires are wound in the same direction.

The structure and design of wire rope produces a final product that has superior strength, excellent strength flexibility, and the ability to handle constant bending stress as well as being weather resistant.

Wire rope is one of those products that has found a place in a wide variety of industries since it can be adapted and shaped to fit several applications. It can be found as a tow cable for boats and airplanes or in the movie industry as a harness for stunt artists. The varied uses of wire rope have made it an essential part of operations that require a rope with strength, endurance, and flexibility.

In the aerospace industry, wire ropes, or Bowden cables, connect pedals and levers in the airplane cockpit to send power to aircraft systems to control the airplane. The things that are controlled by wire ropes are propeller pitch, cowl flaps, and throttle. Wire ropes on aircraft are insulated to avoid vibrations.

Wire rope is extensively used in the auto industry for a wide variety of applications due to its versatility and strength. It is used for raising windows and opening and closing sunroofs. Other uses include steering wheels, cables, exhausts, springs, sunroofs, doors, and seat components. In the manufacturing process, wire rope is used to hoist vehicles, move large body parts, and on hoists and cranes.

The construction industry has a greatest reliance on wire rope because of the need to lift and lower heavy loads. Wire rope used in construction must have extremely high strength and exceptional performance for safety reasons and efficiency. Larger versions of wire rope are used for suspension bridges and supporting concrete columns.

The main use of wire rope in food processing is for lifting, moving loads, and other heavy tasks. Finished products or raw materials require being moved in storage units and processing centers. The strength and endurance of wire rope makes it possible to move these materials. Wire rope for food processing must be able to withstand regular chemical cleaning.

As with other industries, the oil and gas industry needs strong and reliable equipment for moving heavy equipment. In ocean drilling, machinery is dropped into the ocean using wire rope to securely hold devices to be dropped to extreme depths. Wire ropes are designed to withstand the extreme pressure and stress required. A further use of wire ropes for drilling operations is to maintain stability in the drilling lines. One of the unique features of oil rig wire rope is its length, which can exceed 10,000 feet.

A very common use for wire rope is mooring and towing of sea and freshwater boats and vessels. In the shipbuilding industry, wire rope is used to secure lifeboats as well as lower them into the water. On sailboats, wire rope is used to lift and lower sails. The benefit of using wire rope is its resistance to corrosion and rust caused by salt water and ocean mist.

The skiing industry, much like heavy equipment industries, uses wire rope to hold cars, lifts, or chairs to transport skiers up the mountain. This type of wire rope comes in several varieties depending on the size of the mountain. The benefits of wire rope for skiing is its dependability, guaranteed safety, and reliability. The main challenge of wire rope for use in sports is the weather conditions it must endure.

Since the beginnings of amusement parks, wire rope has been an essential part of attraction construction. It is used to bring roller coaster cars to the top of the ride, hold swings, and pull various vehicles through attractions. One of the main concerns of public amusement parks is safety since rides are filled with powerful machinery designed to operate continuously.

Making the dangerous and exciting shots in movies requires well planned safety precautions. One of the aspects of that planning is wire rope that is designed to protect performers when they are engaged in dangerous and life threatening shots. Dependable wire ropes are ideal since they have the flexibility, strength, endurance, and versatility to be adapted to any conditions.

In architecture and design, wire rope has been used for guard rails, balustrades, and roof construction. In innovative green buildings where plants grow along the surface of the building, the plants grow along specially designed vertical wire ropes that are capable of withstanding weather conditions.

A common use of wire rope is in railings, which are safe, durable, and provide a pleasing aesthetic appeal. The use of wire rope for railings provides protection without obstructing the view from a building. This aspect of wire rope is one of the reasons that it is used for large architectural projects since it blends into the structure without interiors with the architectural design.

The types of wire rope are determined by the number of wires in each strand and how many are in the rope, which is defined by a two number system with the first number being the number of wires and the second being the number of wires in each strand. For example, a 6x19 wire rope has 6 wires in 19 strands.

There are a wide variety of products that are produced using wire rope. The demand for wire rope products is due to its strength, durability, and reliability. Since the basic purpose of wire rope is to lift and move heavy materials and items, the most common type of wire rope product is the wire rope sling.

Though the construction of wire rope slings is very similar for all types, there are certain variations applied to slings to adjust them to fit different applications. Slings are configured in various ways to fit different types of loads. These changes are referred to as hitches.

Choker Hitch: In the choker configuration, one eye of the sling is attached to the lifting hook. The second eye is looped over the first sling eye to form a noose shape or choke. The load is placed in the choke loop.

Bridle Hitch: The multiple leg or bridle hitch style has more than one wire rope sling attached to equalize the load and control balance. They reduce load damage by using fixed points on the load and offer easier rigging when hooked into fixed lifting points. .

Single Part Wire Rope Sling: The eye for a single part wire rope sling is formed by looping the wire rope back on to the rope. The end of the rope is attached by a clamp or being woven by hand or mechanically into the rope body. Single part wire rope slings use a single wire rope to produce the sling.

Braided Wire Rope Sling: A braided wire rope sling is made by braiding wire ropes to form a sling. The increased number of strands enhances the strength of the sling and its load capacity. Braiding can be done with three to nine wire ropes.

Cable Laid Wire Rope Sling: Cable laid wire rope slings are made from combining several smaller wire ropes to form a flexible, easy to handle, and kink resistant sling.

Woven Eye Wire Rope Sling: For the woven eye version of a wire rope sling, the eye is formed by weaving the wire rope into itself after forming the loop. It is designed to reduce the chance of the sling catching or being hung up when lifting.

Thimble Wire Rope Sling: To add to the strength of wire rope slings and lessen the stress on a small area of the eye, a thimble, a U shaped piece into which the wire rope fits, is placed in the eye, which helps the sling to retain its natural shape. The thimble is positioned to prevent the hook or load from coming in contact with the wire rope.

Endless Wire Rope Sling:Endless wire rope slings are adaptable slings without a set wear point. They can be manufactured in a wide range of sizes and are used in applications where headroom may be a problem. Endless wire rope slings are made by splicing the ends of a piece of wire rope together or by tucking strand ends into the body to form a core with a tucked position the opposite of the core position. They are also referred to as grommet wire rope slings.

Coiled wire rope is made from bundles of small metal wires that are twisted into a coil. It comes in many varieties and is easy to store since it does not require a spool. Coiled wire rope is produced in coils. When it is not in use, it springs back into a coil, which makes it easy to handle.

Cable wire rope is a type of high strength rope, made of several individual filaments. These filaments are twisted into strands and helically wrapped around a core. One of the most common types of wire rope cable is steel cable.

Push pull wire rope assemblies are used to send force and are used in the aircraft, exercise, medical, automotive, and office equipment industries. Unlike using a single heavy wire, push pull assemblies made with wire rope are stiffer and have a larger bend radii for smoother motion of the wire.

Wire rope assemblies include wire rope and various parts and components that have been added to the wire rope to enhance its function. The connectors for a wire rope assembly are designed to connect the assembly to hooks, equipment, or machines as well as other wire rope assemblies. The central part of a wire rope assembly is the wire rope, which determines the type and kind of work the assembly can perform.

Wire rope lanyards are a standard wire rope product that have a multitude of uses. They are produced using the same process that is used to produce wire rope with the same numbering categorizing system. Lanyards are used to hold fasteners, hardware, or components to prevent loss of an item or prevent injury.

In many ways, wire rope is a form of machine with multiple moving parts. Normally, when we think of a machine, we imagine a device with a motor, drives, and gears. Wire rope does not have any of those components but does fit the definition of being a complex mechanism. It has moving parts that work together to move heavy materials and loads.

The main function of wire rope is to do heavy lifting, which is very dependent on wire rope slings. The type of sling is determined by the quality of the wire rope used to form them and whether several ropes have been braided or wound together.

Wire is the smallest part of wire rope but makes up the various strands. The composition of the wire can be steel, iron, stainless steel, copper, or other types of metal wires and are produced in different grades. The individual wires can be coated or bright, meaning uncoated.

Strands are sets of wires that are twisted together and are placed in a helical pattern around the core. The size of the wire determines its abrasive qualities with larger wires being more abrasive and less flexible than smaller ones.

The core is the center of the wire rope and serves as a support for the strands and helps the wire rope keep its position when it is under stress or bearing a load.

Lubrication is applied during the manufacturing process to reduce friction between the wires and strands as well as protection from corrosion and rust. The tight winding of the wires enhances the ability of the wire rope to retain the lubrication which is essential to its longevity.

The purpose of applying lubricant is to limit the friction between the cables to increase the useful life of the wire rope. In certain applications, such as space travel, lubricants can be hazardous and cause equipment to malfunction. In those instances, non-lubricated wire rope is used, which is referred to as dry wire rope or cable.

Of all of the products that are made from wire rope, slings are the most common and widely used. These looped wire ropes come in different varieties and grades depending on the type of wire used. Also, to enhance wire sling performance, several wire ropes may be wound together to form a sturdier and more reliable sling.

Flemish splicing is a method for repairing a wire rope and involves breaking the wire rope in half and tying it back together. In the Flemish method, the wire rope is tied back on itself and swaged down a sleeve over the unbroken wire rope to create the new eye.

Prior to placing the wire rope into the holding device used to shape the eye, a steel compression sleeve is placed on the rope, which will be used to secure and hold the eye.

Once the proper size is achieved, the unwound strands are rewound in the reverse order of their former positioning. If the wire rope has a right hand lay, it is rewound using a left hand lay. The opposite is true if the wire rope has a left hand lay, then it is rewound using a right hand lay. By using this technique, a friction mold is formed for the splicing of the sling.

Anti-rotational wire rope resists the forces of rotation by having opposing layers of helical stands. By winding the wire rope with oppositional strands, the wire rope is guaranteed to not unwind in clockwise or counterclockwise directions. The key to anti-rotational wire rope is to ensure that the outer diameter is static.

In the manufacture of anti-rotational wire rope, counter stranded filaments have vacant spaces between them. To make the wire rope anti-rotational, it is tightly twisted in the counterclockwise direction, which tightens the spaces between the filaments. If the wire rope is turned in a counterclockwise direction, the strands tighten around each other creating a spring force.

The tails and stray wires of the wire rope have to be straightened and properly formed before applying the compression sleeve. Once the sleeve has been placed, it is carefully checked to be sure that it is accurately engaged.

Prior to placing the wire rope sling in the swaging die, the die has to be thoroughly lubricated. Once the die is set, the wire rope‘s compression sleeve and the wire rope are compressed using several hundred thousand pounds of force. The swaging process alters the dimensions of the wire rope and compression sleeve to form a tight connection for the correct diameter for the sling connection. As force is applied, the compression sleeve is turned so that pressure is evenly applied.

There are several types of metal wires that are used to produce wire rope, which include steel, stainless steel, galvanized, aluminum, nickel alloy, bronze, copper, and titanium. Carbon steel is the most common type of wire rope material.

Wire ropes are made using uncoated bright wire, which is high-carbon steel. The type of steel depends on the requirements of the wire and its tensile strength and its fatigue and wear resistance.

Galvanized wire rope is treated with zinc to prevent corrosion and can be used in harsh conditions and environments. It is a cost effective alternative to stainless steel but does not have the same corrosion resistance. Galvanized wire rope is stronger than stainless steel of the same grade and size. Vinyl coated galvanized wire rope is easy to handle and flexible.

Stainless steel wire rope is corrosion and rust resistant. It is available in types 316 and 304 with 316 having greater corrosion resistance. Stainless steel wire rope can be used for marine applications, acidic environments, and other demanding conditions. It is produced with the appropriate tolerances and composition to meet the needs of the application.

Multiple strands of copper are braided into a round hollow shape, which is pressed into the desired width and thickness. Copper wire rope has exceptional flexibility, an exceptional life span and can be used as part of electrical components.

Bronze wire rope inhibits sparking and is corrosion resistant. It is made from preformed wire to ensure that it maintains its shape and does not unravel when cut. Bronze wire rope is abrasion resistant and very flexible with a crush resistant core.

Inconel wire can be used in applications that reach temperatures as high as 2000° F and is oxidation and corrosion resistant. It is non-magnetic and has excellent resistance to chloride based corrosion cracking. Inconel wire rope can be used with nuclear generators and chemical and food processing.

Titanium wire rope comes in several grades with grade two being 99% pure. It is easily formable and weldable. Titanium wire rope is commonly used in chemical processing and marine hardware.

For wire rope to perform properly, it needs to have proper care. Wire rope is an essential tool necessary to perform a wire range of lifting and moving jobs. It is important that it be handled, treated, installed, stored, and treated correctly to prolong its life and perform to the highest standards.

Seizing should be completed on both ends of the wire rope, which will protect it from loosening. If this is done improperly, the wire rope can become distorted. Wire rope that is properly seized evenly distributes the load.

Wire rope is stored on reels or coils and has to be carefully handled when it is being removed. To ensure excellent performance, the wire rope should not be dropped during removal. If the reel or coil is dropped or damaged, it can make handling the wire rope difficult and cumbersome. As the wire rope is removed from the reel, check to see that the reel is rotating as the wire is removed.

Wire rope is depended on for heavy lifting and is trusted to keep a load and people safe. As with all heavy duty equipment, wire rope must have a regular inspection schedule and be visually assessed during use.

Broken Strands – An easy way to check for broken strands is to run a cloth over the length of the wire. Broken strands that are found in critical areas, such as parts that pass through pulleys or sections that are regularly flexed, rubbed, or constantly worked must be replaced and repaired.

Internal wear – This can be tested by flexing the wire rope, which indicates if the interior has deteriorated, experienced fatigue, or become distorted.

For wire rope to perform at the highest level, it has to be stored in a well ventilated environment that is dry, covered, and not in contact with the floor. The avoidance of high moisture or damp conditions is an absolute necessity. While the wire rope is in storage, it should be moved regularly to keep the lubricant from wearing off.

Though lubricant is applied during the manufacturing of wire rope, it wears off during use. Lubrication is the key to the performance of wire rope because it helps prevent abrasion as the wires rub against one another. Relubrication should be applied after the original lubricant has worn off.

Wire rope is a tool and must be cleaned regularly as with any form of machinery. This can be accomplished with different types of petroleum solvents and a wire brush. Mechanical methods of cleaning can include compressed air or a steam cleaner. Once the cleaning process is completed, the wire rope should be lubricated for protection.

There are several substances that can harm a wire rope. They include salt water, brine, acid, various gasses, and humidity. To avoid the intrusion of these negative effects, when a job is completed and the wire rope is to be stored, it should be cleaned, lubricated, and placed in proper storage.

When wire rope is being removed from a spool or being spooled, the operation must be performed smoothly with the spool rotating at a constant speed and rhythm. This will help prevent kinking or binding.

When a wire rope shows a reduction in diameter, has broken wires, kinks, nodes, flattened surfaces, out of place outer wires, damage from heat exposure, corrosion damage, or the formation of unexpected loops, it should be removed and replaced or be repaired.

Wire rope is regulated by the Occupational Safety and Health Administration (OSHA) as part of the regulations for cranes and derricks in construction as part of 29 CFR 1926.1413, which went into effect on November 8, 2010.

The inspection of wire ropes is on three levels: shift, monthly, and annually. Shift and monthly inspections can be completed by an approved operator, while annual inspection must be completed by certified personnel.

As with the shift and monthly inspections, the annual inspection follows the guidelines for the shift inspection. This inspection must be completed by certified personnel. The entire surface of the wire rope has to be inspected, with attention to:

Annual inspections can be excused if it is not possible due to the wire ropes setup or configuration or the location of the work site. It must be completed within six months. If any deficiencies are found, the wire rope must be repaired or removed. For some deficiencies, it is possible to keep the wire rope in use but have them regularly monitored.

Wire rope is a form of metal tool that is constructed of multiple strands of wire that are twisted and braided together to form a spiral design or helix.

To further enhance the strength of wire rope, they are grouped and wound together to produce cables, which adds to their usefulness as a means of support, ability to lift, and give structural stability.

The types of wire rope are determined by the number of wires in each strand and how many are in the rope, which is defined by a two number system with the first number being the number of wires and the second being the number of wires in each strand.

Wire rope slings are an important piece of  rigging hardware used in lifting and hoisting operations and  are commonly used across different industries. These slings connect the load to the lifting device and are available in a wide range of configurations that support a broad range of applications. These configurations include single and multi-part slings (such as round braids, flat braids, Tri-Flex and cable laid slings), grommets, single leg slings, multiple leg bridles, and a wide variety of fittings and attachments.

Wire rope slings are widely preferred for heavy load lifting operations, which are a part and parcel of activities on  construction sites, shipyards, marine industry and many others. It is an important rigging component in the manufacturing industry as well as it requires a lot of heavy duty shifting and loading of heavy objects. These loads may vary in shape and size depending upon the manufacturing activity they are being used for. The manufacturing sector is closely related to engineering and industrial design, but it also includes a wide range of activities such as production, packing and sales of finished products and many others. The selection of proper wire rope slings depends on the application of the sling in any one of these activities.

Wire rope sling categories are generally named after the design of the wire rope and how many wires make up a strand and how many strands are wrapped around its core: a 6×19 wire rope is made from 6 strands of 19 wires; a 6×37 wire rope is a 6 strand rope made of 37 wires.

Typically used in choker, basket and vertical hitches, the oval “eye” at each end gives the sling its name. The eyes are formed using a Flemish eye splice and are secured with a carbon steel sleeve. These rope slings are rugged and reliable and a very popular choice because of their versatility .

There are mainly three types of bridle slings available; 2 , 3 and 4 legged bridle slings. These are designed for general lifting purposes where they are directly connected to the load by hooking into lifting eyes or placing these loops over projections. Their design make them a great pick for handling loads with fixed lifting points.

Nine-part slings are particularly effective with heavy and large loads because the weight is distributed evenly amongst all nine parts of the sling’s body. The construction of a nine-part sling also allows for easy inspection of the wire rope, which is crucial when reusing the sling for multiple loads.

A multi-part wire rope sling works well with single loads of moderate weight . These slings are also made of braided wire rope that helps distribute the weight equally across the sling body. Multi-part slings are flexible, fairly strong and durable

Wire rope slings are  an important part of  rigging equipment and therefore should be picked with care. The use of inappropriate sling/s can  imbalance loading and lead to the collapse of the rigging structure.

Wire rope is often used in slings because of its strength, durability, abrasion resistance and ability to conform to the shape of the loads on which it is used. In addition, wire rope slings are able to lift hot materials.

Wire rope used in slings can be made of ropes with either Independent Wire Rope Core (IWRC) or a fiber-core. It should be noted that a sling manufactured with a fiber-core is usually more flexible but is less resistant to environmental damage. Conversely, a core that is made of a wire rope strand tends to have greater strength and is more resistant to heat damage.

Wire rope may be manufactured using different rope lays. The lay of a wire rope describes the direction the wires and strands are twisted during the construction of the rope. Most wire rope is right lay, regular lay. This type of rope has the widest range of applications. Wire rope slings may be made of other wire rope lays at the recommendation of the sling manufacturer or a qualified person.

Wire rope slings are made from various grades of wire rope, but the most common grades in use are Extra Improved Plow Steel (EIPS) and Extra Extra Improved Plow Steel (EEIPS). These wire ropes are manufactured and tested in accordance with ASTM guidelines. If other grades of wire rope are used, use them in accordance with the manufacturer"s recommendations and guidance.

When selecting a wire rope sling to give the best service, consider four characteristics: strength, ability to bend without distortion, ability to withstand abrasive wear, and ability to withstand abuse.

Rated loads (capacities) for single-leg vertical, choker, basket hitches, and two-, three-, and four-leg bridle slings for specific grades of wire rope slings are as shown in Tables 7 through 15.

Rated loads for a sling in a choker hitch are the values shown in Table 7, 9, 11, 13, 14, or 15, provided that the angle of the choke is 120 degrees or more (Fig. 2). Use the values in Fig. 2 or those from the sling manufacturer or a qualified person for angles of choke less than 120 degrees.

Ensure that slings made of rope with 6×19 and 6x37 classifications and cable slings have a minimum clear length of rope 10 times the component rope diameter between splices, sleeves, or end fittings unless approved by a qualified person,

Ensure that braided slings have a minimum clear length of rope 40 times the component rope diameter between the loops or end fittings unless approved by a qualified person,

Ensure that grommets and endless slings have a minimum circumferential length of 96 times the body diameter of the grommet or endless sling unless approved by a qualified person, and

Perform welding of handles or other accessories to end attachments, except covers to thimbles, before assembly of the sling. Ensure that welded end attachments are proof tested by the manufacturer or a qualified person. Retain the certificates of proof test and make them available for examination.

Do not use wire rope clips to fabricate wire rope slings, except where the application precludes the use of prefabricated slings and where the sling is designed for the specific application by a qualified person,

Although OSHA"s sling standard does not require you to make and maintain records of inspections, the ASME standard contains provisions on inspection records.[3]

Use damaged slings only after they are repaired, reconditioned, and proof tested by the sling manufacturer or a qualified person using the following criteria:

Ensure that wire rope slings have suitable characteristics for the type of load, hitch, and environment in which they will be used and that they are not used with loads in excess of the rated load capacities described in the appropriate tables. When D/d ratios (Fig. 4) are smaller than those listed in the tables, consult the sling manufacturer. Follow other safe operating practices, including:

Ensure that multiple-leg slings are selected according to Tables 7 through 15 when used at the specific angles given in the tables. Ensure that operations at other angles are limited to the rated load of the next lower angle given in the tables or calculated by a qualified person,

When D/d ratios (see Fig. 6) smaller than those cited in the tables are necessary, ensure that the rated load of the sling is decreased. Consult the sling manufacturer for specific data or refer to the WRTB (Wire Rope Technical Board) Wire Rope Sling Users Manual, and

Ensure that all portions of the human body are kept away from the areas between the sling and the load and between the sling and the crane or hoist hook,

When using a basket hitch, ensure that the legs of the sling contain or support the load from the sides, above the center of gravity, so that the load remains under control,

Ensure that the load applied to the hook is centered in the base (bowl) of the hook to prevent point loading on the hook, unless the hook is designed for point loading,

Before initial use, ensure that all new swaged-socket, poured-socket, turnback-eye, mechanical joint grommets, and endless wire rope slings are proof tested by the sling manufacturer or a qualified person.

Permanently remove from service fiber-core wire rope slings of any grade if they are exposed to temperatures in excess of 180 degrees F (82 degrees C).

Follow the recommendations of the sling manufacturer when you use metallic-core wire rope slings of any grade at temperatures above 400 degrees F (204 degrees C) or below minus 40 degrees F (minus 40 degrees C).

Wire rope features many individual wires that form a strand. Multiple strands are wrapped around a core to create the wire rope. The amount of wires in the strand and strands wrapped around the core will determine the flexibility of the wire rope, as well as abrasion resistance for its given application.

Equally as important as the basic construction of the wire rope is going to be the diameter. That diameter determines the working load limit of that sling. Furthermore, when identifying your wire rope sling or choosing what one you want, your supplier has to confirm the sling’s:Length

The length of the sling is measured by the bearing point of one end to the bearing point of the other end. Also, when using a wire rope sling, it’s important to know the eye size.

With Mazzella 7-Part™ Wire Rope Slings, our specialists have found customers are confused by the component rope used and the finished diameter. Anytime you’re reviewing an inspection report or purchasing a sling, you want to identify the component rope. That will determine the finished diameter of the slings.

A rigger will actually break the wire rope in half, and then, tie it back together, or Flemish it back on itself. Then, we’ll swage down a sleeve over the remaining part of wire rope to create the eye.

Our specialists have found over time that steel erectors have preferred to use the hand-tucked eyes because of their ease of use. They slide under beams much easier than Flemish-eyed slings. Also, they don’t get caught like the knuckle of the swaged sleeve could.

Each tag must have the following information:Name or trademark of manufacturer of the slingIf repairs are done, the entity performing those repairs are required to put their name/trademark on the sling tag

Not all slings will have serial numbers or multiple hitch capacities, but they’re critical pieces of information for your field operators to have when they’re executing lifts.

When determining wire rope bridle, you want to choose the correct master link, or pear link, along with the proper size, so it can fit over your crane hook. Also, at the bottom of the wire rope bridle, you want to determine the proper components you’ll need to make safe, successful lifts.

Also known as grommets, you’d want to use these types of slings when lifting a capacity above the capabilities of an eye-and-eye sling. Endless slings can be used in applications where headroom is an issue because they can be manufactured smaller than an eye-and-eye sling.

This refers to the thickness of the wire rope strands used to make the sling, which can be specified in inches or millimeters. Diameter determines the working load limit of that sling.

Most wire rope slings are single-leg configurations, but multi-leg sling assemblies, often called bridles, can be ordered in double, triple, or quad leg configurations.

Based on your needs and types of lifts, you’ll need to know if the multi-leg slings will be connected through hooks or a master link. Also, you’ll want to know if it’s being thimblized.

Learning more about the different parts and terms associated with this product will allow you to determine if will meet the needs of your company and help you conduct safer overhead lifts.

Wire rope slings are widely used in the lifting applications and engineering industries for extremely heavy loading. They can be used on wire rope hoist, pulley and block, crane and winch pulling equipment at dockyards and large construction sites.

They are available in single leg or multi legs like the chain slings, however, the wire rope slings are more safety than chain slings for wire rope sling can still hold the load if 1 or 2 wires are broken, while the chain sling will fail for 1 link broken result to the whole chain sling failed.

Usually, we use a less flexible or a stiffer wire rope to assembly for they are more crush and abrasion resistance than a very flexible one since wire rope slings are used in a straight line for lifting connect with a master link on one end and a hook or hooks on the other end, need more load strength than flexibility.

When it comes to using wire rope slings in or on your jobsite, there are a few things to keep in mind in order to make sure that your wire rope sling is ready for use and that it will last for years to come. For starters, be sure to designate a qualified person to inspect all of your slings, fastenings, and attachment each day before use for damage or defects. A thorough inspection of your wire sling should check for:

By regularly performing these inspections that check the condition of your rope, you’ll not only be able to give your wire rope sling the care and maintenance that it needs to work at its best, you’ll be protecting your entire team and jobsite from the potential dangers that can occur if a wire rope sling snaps during use.

Manufacture of material handling gripper slings made from 304 or 316 stainless steel, 4130 heat-treated alloy steel, exotic alloys and neoprene. Features include polyurethane plastic-covers, wire mesh construction, interwoven and tolerate abrasive loads. Suitable for handling all types of products such as coiled strips, thin-walled tubing, polished shafting, lumber, paper machine rolls, precast hollow core concrete beams, structural beams, cold drawn flats and irregularly shaped objects. Serves the marine, automotive, beverage, cement, energy, food and mining industries.

SWR specialise in the design, specification and manufacture of wire rope slings and assemblies for a large range of industries. Our UK facility can produce slings ranging from 1mm to 52mm in rope diameter which conform to BS EN 13414-1: 2003. We also have a large stock of wire rope and fittings to choose from. Need something more specific? No problem, we can even design bespoke fittings and create tailored solutions on request.

All wire rope slings are produced with their own ID numbers to ensure full traceability under our ISO9001 production system. In-house testing also means we can proof load and destruction test your slings and wire rope. Rest assured, everything that leaves our facility meets the highest possible standards.

DCL Mooring and Rigging is a leading fabricator and manufacturer of wire rope slings. DCL manufactures single leg slings with all types of end pieces to customize for the job that the sling needs to accomplish.

We have them with the basic swage loop, swage thimble, swage thimble eye hook, swage thimble safety pin anchor shackle, swage hawser thimbles, open swage socket, and closed swage socket. We also have multi-leg bridles, including 2 leg bridles which use a master link at the top to hold the two separate slings together. These are perfect for lifting items that need to be attached at multiple points to properly distribute the weight of the item being lifted. 3 leg bridles and 4 leg bridles again are the same thing, just adding another separatee sling onto the master link. Adding legs increases the working load limit that the sling can hold, and also properly distributes the weight across all attached legs. Another component common on wire rope slings is poured sockets. We use a compound called wirelock to attach the wire rope sling to the socket for maximum efficiency. Wirelock is a resin compound made by Crosby, for use in pour socket wire rope sling assemblies. We also manufacture grommets which are basically slings for use in lifting an item that has no place to hook or latch onto, basically, it is an endless wire rope sling that can be fitted into specific designs to properly lift odd-shaped items. DCL also manufactures multi-part braided slings including 2-leg choker bridles, 8 part braided choker slings, tri-flex wire rope slings, gator-flex grommets, gator-max wire rope slings with parallel eyes, gator-laid wire rope slings with parallel eyes, gator-flex wire rope slings, and T & D Ultra-Flex Wire Rope Slings.

Manufacture of material handling gripper slings made from 304 or 316 stainless steel, 4130 heat-treated alloy steel, exotic alloys and neoprene. Features include polyurethane plastic-covers, wire mesh construction, interwoven and tolerate abrasive loads. Suitable for handling all types of products such as coiled strips, thin-walled tubing, polished shafting, lumber, paper machine rolls, precast hollow core concrete beams, structural beams, cold drawn flats and irregularly shaped objects. Serves the marine, automotive, beverage, cement, energy, food and mining industries.

Since 1975, when Hercules Wire Rope and Sling Company, Inc. opened its doors in Houma, Louisiana, it has been dedicated to providing its customers with the best service in the industry. To continue our personalized service and better serve our customers, offices were opened in - Austin, Texas - Laurel, Mississippi - and Morgan City, Louisiana. Each location has someone on call 24 hours a day, 7 days a week for the convenience of our customers.

We custom fabricate slings made from wire rope, synthetic rope, and chain. Swing ropes, escape ropes and nylon web slings are made to individual"s specifications. We stock a large variety of rigging hardware and truck straps. Biodegradable wire rope lubricant is also available.

We also have a 360,000 LB test bed to certify and re-certify slings and a 150,000 LB vertical test bed to certify and re-certify baskets, spreader bars, and various offshore equipment. Both test beds are certified to E4 standards(+ or - 1%). This is just a small part of what we do!

American Wire Rope & Sling was acquired by Bishop Lifting in June of 2019. Since its founding in 1933, American Wire Rope & Sling has been a leader in providing rigging, lifting, and overhead crane solutions in the Midwestern region of the United States. With its three locations in Indiana, American Wire Rope & Sling has been a strong addition to Bishop Lifting group of industry-leading crane and rigging companies.

As a group, American Wire Rope & Sling and Bishop Lifting are growing rapidly, so in order to be a unified team, we are now all under one banner, Bishop Lifting, to create value, company unity, and combine our strengths and capabilities across the country to better serve you, our customer.

Bishop Lifting, founded in 1984, is the most trusted name in the lifting world. Bishop Lifting has the deep expertise, services, and support to solve both routine and complex lifting challenges. They have the above and below-the-hook inventory customers need, when they need it. And they have a culture of service and support that puts customer satisfaction first.

Nothing will change in regards to staff, location, or support. We will still provide you with the same great services, just under the name Bishop Lifting. This means you will have more products, services, and expertise available!

All the products and services we have been providing you will still be available, with the expansion of even more products and services from our Bishop Lifting family.

The Crosby Group has a reputation for reliability and exceptional quality control as one of the leading manufacturers for lifting and rigging hardware. We are an established provider of slings, rigging, and a wide variety of both commercial and industrial applications. We stock a wide range of wire rope slings and connections in a variety of different sizes and styles. We can also fabricate a sling to meet your project’s specific requirements.

Wire rope is often used in slings because of its strength, durability, abrasion resistance and ability to conform to the shape of the loads. In addition, wire rope slings can lift materials with increased temperatures. The use of wire rope slings is one of the most important pieces of rigging hardware used in lifting and hoisting operations within the manufacturing industry. These slings connect the load to the lifting device and are available in a wide range of applications. When selecting a wire rope sling that gives the best service, consider four characteristics: strength, ability to bend without distortion, ability to withstand abrasive wear, ability to withstand abuse.

Wear: If excessive wear exists, remove from service. Wear is excessive if throat, eye of hook and other critical areas of hardware have more than 5% wear.

All slings and attachments need to be inspected by the user handling the sling every day they are in use. A routine inspection needs to be performed at least once every 6 months (or per legal requirements), along with a record of the inspection.

We recommend having a highly-qualified person specific for the proper inspection of slings and all attachments. A verification of zero defects should come first before using the slings for the day. This person should have routine inspections where service conditions warrant and are determined by:How often the sling is used

Refer to the applicable standards such as ISO 4309 with specific discard criteria and guidance regarding the number of broken wires.Conduct inspections of wire rope slings at least every 12 months.

Any wire rope slings that have damage and have resulted in distortion of the structure including Kinking, Crushing, Unstranding, Bird Caging, Strand Displacement, or Core Protrusion, must be removed from service.

If there is evidence of defect or deterioration, remove the sling from service immediately. Do not use worn or damaged slings or attachments. Discard or repair them.

Midco Sling has served the heavy lifting needs of customers throughout Texas, Oklahoma, New Mexico, Arkansas and Louisiana since 1976. Specializing in lifting products ranging from fall protection to synthetic slings, Midco Sling carries products from the industry’s most reputable vendors including Crosby, Capital Safety, and Bridon American.

Established over 40 years ago in North Texas, Midco Sling now manufacturers and distributes wire rope from 3 locations to more conveniently serve customers across the Southern States. Midco Sling retains branch locations in Dallas, San Antonio and Longview. These locations allows Midco to stock a wide array of specialty lifting products and enables Midco to efficiently meet a wide range of manufacturing needs.

Wire rope slings are extremely strong and an excellent choice for heavy duty jobs involving not only lifting, but also hoisting, towing, or anchoring loads. The fabrication of wire slings also offers excellent abrasion-resistance and heat resistance so it can be used in extreme conditions and temperatures. Its pliable design can conform to the shape of a load for a more secure application.

Wire rope slings are manufactured in a variety of configurations, with 6x19 and 6x36, being two of the most common. The numbers represent the number of wires making up the strand and the number of strands wrapped around the core. For example, a 6x19 indicates that there are 19 wires making up a strand, and 6 strands are wrapped around the core.

Each steel wire rope configuration will offer different benefits and will be better suited to certain applications. In general, a smaller number of large outer wires offers better wear and corrosion resistance, while a larger number of small wires provides a better level of flexibility and fatigue resistance.

We offer steel wire rope slings in both 6x19 and 6x36 configurations, depending on the diameter of the wire rope. All are in a bright (unfinished) wire rope, but other configurations are available by request. Our cable laid slings are manufactured in a 7x7x7 galvanized wire rope (composed of 7 strands of 7x7 cables), which make them extremely flexible and useful for more specialized applications.

The eye loops on our sling cable are created with a Flemish splice, which is a mechanical splice where the rope cable is separated into two parts (one part has three strands, the other part has the remaining three strands plus the core), then re-laid back in the opposite direction to form the loop. The ends are then secured with a carbon steel sleeve around the entire area. Flemish splices offer the most efficient use of capacity.

The core of the wire rope used in cable slings can be made of several different materials, including steel or natural fibers. Our steel wire rope slings are made with Extra Improved Plowed Steel (EIPS) around an Independent Wire Rope Core (IWRC) for the ultimate in strength and durability.

Our categories of wire rope slings are broken down by number of legs, hardware, and the diameter of the wire rope. Each wire sling is made to order, so custom slings are also always an option if you don"t see what you"re looking for here.

We offer a wide selection of both domestic wire rope slings and import wire rope slings online, with additional options and customization available by calling our sales team.

Import slings are a more cost-effective choice yet offer the same wire rope strength and working load limits as our domestic slings. Our imported slings also feature sleeve components from Crosby. Wire rope slings we import are also available in custom configurations.

Sometimes called eye & eye slings because of an oval "eye" at each end, these 1 leg cable slings are rugged and reliable and a very popular choice among wire slings. The eyes are formed using a Flemish eye splice and secured with a carbon steel sleeve.

Single leg cable slings are available in a variety of styles: Eye & Thimble, Thimble & Thimble, Eye & Hook, Eye & Eye, Sliding Choker, and Cable Laid.

Also known as a 2 leg bridle sling, this sling offers increased versatility over a sling with just a single leg. Manufactured with a Flemish eye that"s spliced with a carbon steel sleeve; end options range from a latched eye hook to a simple eye design. Our 2 leg wire rope slings are available in seven different diameters of rope. Custom options are also an option.

Our 3 leg wire rope slings are also known in the industry as a 3 leg bridle sling. Each is manufactured with a Flemish eye that"s spliced with a carbon steel sleeve for the ultimate in safety and strength. End options include latched eye hooks, eyes equipped with thimbles, and more, as customized options are always available. Our 3 leg wire rope slings are available in seven different diameters of rope.

A 4 leg bridle sling offers the ultimate in versatility. Also known in the industry as wire rope 4 leg bridle slings, ours are manufactured with a Flemish eye that"s spliced with a carbon steel sleeve for an extra measure of security. And because legs can be fitted with hardware of your choosing, from simple eye formations to heavy duty hooks, it results in a sling customized to your exact application needs. Our 4 leg wire rope slings are available in six different diameters of rope.

Braided wire rope slings are formed when multiple wire ropes are braided continuously to form the body of the sling and the eye/eyes into a single fabricated sling. Braided wire slings are excellent for higher capacity lifts and can be either round or flat. One benefit of a braided sling is its ability to conform snugly to a load that"s in a choker hitch. Because of the braided design, they also are better resistant to kinking.

Our braided wire rope slings are made in the USA and available in a variety of configurations, including a 3-part braid, 6-part braid, 8-part braid, and 9-part braid. Several style options are also available, including standard eyes, thimble eyes, and more, to create a customized braided wire rope sling to your specifications.

Wire rope bridles are measured by the length of the sling leg plus the end hook. The length of the oblong master should not be included in the overall measurement.

Our slings are available in a variety of lengths, but can also be customized to any length you need. Give our sales team a call for more information or to place a custom order.

"Slings in contact with edges, corners, protrusions, or abrasive surfaces shall be protected with a material of sufficient strength, thickness, and construction to prevent damage."- ASME B30.9 (2021) 9-5.10.4(d)

All of our slings are inspected, certified and tagged with metal tags displaying rated capacities by hitch types and angles; diameter or size; and name/trademark of the manufacturer.

Proof testing certificates can be supplied with your order for a nominal fee and must be requested at the time of order. Proof tests are performed in the factory where the sling is pull tested to 2x the vertical rating and officially recorded as proof for governing bodies. During the standard manufacturing process, only random slings during a production run are tested for compliance; in order to provide proof testing certificates with your order, every sling must be pull tested at the time of manufacture.

If steel wire rope slings are not the best choice for your application, we also offer chain slings, nylon lifting slings, and polyester round slings in a wide range of styles and capacities. As with all of our lifting slings, customization is always an option.

If you need help selecting a sling, check out our How to Choose a Lifting Sling page or call our product specialists . They"ll be happy to any answer questions you may have and can even place a custom order if needed.

Wire rope lifting slings, bridles and assemblies provide great durability and high tensile strength for lifting heavy loads. In addition, wire rope lifting slings are lighter in weight and more cost efficient than chain slings. Wire rope slings, sometimes referred to as wire slings, or cable lifting slings, are constructed using a variety of different styles and sizes of steel wire rope. Every style and size of wire rope offers different properties and benefits such as:

Each type of wire rope has benefits and drawbacks. What all wire ropes have in common however, is that they are made up of steel wires which form individual stands. These strands are laid in a helical pattern around a fiber or steel IWRC (independent wire rope core) core.

Wire rope lifting slings, bridles and assemblies are highly customizable, so if you are unable to find what you are looking for, or if you don’t know exactly what you need, call or email our sales team to speak with a rigging product specialist.

The durability of steel cable lifting slings is also put to the test in the harsh environments seen in steel mills and forging facilities. Every steel wire rope configuration will offer different properties and will be better equipped to handle certain applications. Generally, a smaller number of large outer wires will provide more wear, corrosion and abrasion resistance. Conversely, a larger number of smaller outer wires will provide better flexibility and fatigue resistance.

After you decide what construction and size of wire rope fits your application, you must configure the entire sling. Wire rope bridles and assemblies are available in single-leg, double-leg, triple-leg, and quadruple-leg configurations. They most commonly have 2 eyes and are constructed using a mechanical flemish splice. Wire rope lifting slings can be used in vertical, choker and basket hitches. They can also be equipped with a variety of attachments and fittings to accommodate almost any overhead lifting application.

Although wire rope sling fittings and attachment can be reused, the wire rope itself is not repairable. If a wire rope sling fails an inspection, it is to be properly destroyed and disposed of

It is important to inspect wire rope slings regularly and to keep a record of all sling inspections. At Tri-State Rigging Equipment we offer a full range of rigging inspection and repair services. The standards that govern wire rope sling inspection are OSHA 1910.184 and ASME B30.9. It is recommended that wire rope rigging slings first undergo an initial inspection when you receive the lifting sling from the manufacturer. The purpose of this initial inspection is to:

Wire rope slings, bridles and assemblies should also be inspected by a designated and qualified individual every day before use to make sure that the sling is in working condition and will lift its rated capacity. The person performing the inspection should examine all the wire rope, fastenings and attachments on the wire rope sling. The inspector is looking for visual indications of any defects, deformities and general damage that might affect the integrity of the sling.

Depending on your application, it may be recommended that you perform these visual inspections more than once a day. If the wire rope sling is used many times throughout the day, by multiple individuals, across multiple shifts, it is imperative that the sling be inspected before every shift change and before any change in lifting application.

ASME standards further require a thorough periodic inspection to be performed at least once a year by either a professional service provider, or by a Qualified Person. In addition, written records must be kept until the next periodic inspection. The rejection criteria for periodic wire rope sling inspections are as follows:

10 or more randomly distributed broken wires in one rope lay, or 5 or more broken wires in one strand in one rope lay, for strand-laid grommets and single part slings.

If your wire rope sling shows any of the rejection criteria above, you must remove the sling from service, and it must be destroyed. Properly destroying rigging equipment is imperative because you can be held accountable for damage done by people who find and use your discarded slings. Therefore, lifting slings deemed not suitable for service must be destroyed beyond use and beyond repair. The process for destroying a wire rope sling is as follows:

The purpose of daily and periodic wire rope sling inspections is not to get anyone in trouble but rather to gain knowledge of the frequency of use, severity of conditions, and nature of lifts, and consider how all these factors affect your wire rope sling. The most important reason to perform daily and periodic wire rope sling inspections, however, is to keep you and your coworkers safe.

Tri-State Rigging Equipment is a custom manufacturer, service provider and distributor for all wire rope lifting slings serving clients from coast to coast, Canada, Mexico and especially focused in the states of Missouri, Illinois, Indiana, Iowa, Kansas, Nebraska, Arkansas, Mississippi, Tennessee, Kentucky, South Carolina, Florida, and Oklahoma.