what is wire rope sling price
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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 Material: The lifting slings are made from independent wire rope core (IWRC) offering less stretch and resistance to crushing while maintaining sling flexibility. Wire rope slings are fabricated from extra improved plow steel (EIPS).
A low quality wire rope sling can cause injury and damage. A look-alike wire rope sling often found at lower prices is also often advertised to conform to the same safety standards (if at all). Be aware that it may refer to safety ratings in effect decades ago. So for example under the same safety standard a decade ago, a wire rope sling may be rated to 100% without proof load testing while today it may be 300% with proof load testing. Be assured that we only sell the highest quality wire rope slings and our advertised safety standards conform to the current ASME standards.
Working load limits (capacity) of the wire rope lifting slingsvary depending on the angle of use. The capacity is reduced as the angle of use declines. See drawing below how a 1,000 lbs sling capacity is reduced as the angle of use declines. The capacity of the sling is always highest at a 90 degree angle of use and smallest at an angle of 30 degrees (or less).
The chain sling has the advantage of being durable, very flexible and its length can be made adjustable. It will tolerate a wide range of temperatures; however, compared to other types, it is relatively expensive and, depending upon the grade of chain used, relatively heavy.
The wire rope sling is not quite as durable. The wire rope sling is not as flexible as chain but its greater stiffness can be an advantage if it has to be inserted through a small opening or beneath a load. However, when wrapped around a load, the wire rope sling often tends to deform permanently to the shape of the load. Wire rope suitable for slings comes in a variety of grades and constructions. In most cases looping back and securing the loop with a metal sleeve terminates the rope. This forms a loop or soft eye, the simplest form of sling end. Thimbles are used to support and protect the eye from abrasion. Wire rope is generally cheaper and lighter than chain which can be a plus, particularly for applications that require long sling lengths.
The nylon and polyester slings have the advantage of being lightweight in comparison to chain and wire rope slings. They are very flexible and relatively soft; therefore, they are suitable in applications were minimal damage to the load"s surface finish is important. The rope is made endless or terminated with an eye by means of a handmade splice. Similar to a wire rope sling, various terminal fittings are available. Without adequate protection, nylon and poly slings are susceptible to being severed when impinging on even a relatively moderate sharp edge.
Wire rope is often commonly referred to as cable; they are one in the same. Wire rope is composed of wires, strands, and a core. The basic unit is the wire, which is formed into strands. The strands are wound around the core. Various types of wire rope exist to meet a range of uses and operating conditions. These types are designated by the number of strands; the number, sizes and arrangement of the wires in each strand; and the way in which the wires and strands are wound, or laid, about each other.
Important characteristics of wire rope relate to the number and size of the outer wires. A small number of large outer wires result in better resistance to wear and corrosion. A large number of small wires result in better flexibility and resistance to fatigue.
The core acts as the axial member about which the strands are laid. Wire rope cores are made in two different forms. The one used most extensively is a wire rope of suitable size to serve as a core. It is called as independent wire rope core (IWRC). IWRC has increased tensile strength, offers less stretch, and is resistant to crushing; however, is less flexible. The other type is a wire strand core (WSC). This consists of a multiple-wire strand, and may be the same construction as the main rope strands.
Two grades of carbon steel wire are offered. The bulk of commercial wire rope lifting sling is made from improved plow steel (IPS) or extra improved plow steel (EIPS) which has a higher tensile strength.
Hand Splicing: Because no metal sleeve is required to secure the eye in the hand spliced sling, it exhibits more flexibility than mechanically splice slings of equal diameter. They have a more narrow profile and therefore can fit through tight spaces. Without benefit of a metal sleeve, lifts must be limited to applications where the wire rope sling is restrained from rotation and possible unlaying of the sling body.
Mechanical Splicing:Mechanically spliced eyes do not suffer the limitations of hand splicing, are economical, and offer the highest rated capacity of any spliced wire rope sling. This wire rope sling is fabricated by unlaying the rope body into two parts, one containing half the number of strands, the other having the remaining strands and core. The rope is unlayed far enough back to allow the eye to be formed by looping one part in one direction and the other part in the opposite direction and laying the rope back together. The strands are rolled back around the rope body and a metal sleeve is slipped over the ends and pressed (or swaged) to secure the ends to the body of the wire rope sling.
It also save energy and money. wire rope slings are made from stainless steel, and it"s also an excellent choice for installation or any production of any kind.
There are two types of wire rope sling, steel wire sling, and steel rope sling. Stocking products of different price points, be the first choice and stockists wholesale today. Check out the stainless steel wire sling price, color and design at Alibaba.
We offer Wire Rope Sling that are mainly used for transporting and shifting of load.These are highly acclaimed for features like durability, hardness and tensile strength. The sling is used in construction, marine and automobile industry. The range is also customized as per specification of client.
Naranpura, Ahmedabad No. 203, Vraj Bhumi Apartment, No. 11, Harihar Society Raman Nagar, Mani Nagar, Naranpura, Ahmedabad - 380008, Dist. Ahmedabad, Gujarat
Byculla, Mumbai No. 2/14, Pais Street, Byculla West, Opposite Kinjal Towers Near Veena Killedar Industrial Estate, Byculla, Mumbai - 400011, Dist. Mumbai, Maharashtra
Kalasipalya, Bengaluru No. 1/2, No. 3rd Cross, N. R. Road Nazz Complex, Below Vijaya Bank, Kalasipalya, Bengaluru - 560002, Dist. Bengaluru, Karnataka
Naranpura, Ahmedabad D-40, Ratilal Park, Opposite Devkinandan Jain Temple, Darpan Six Road, Navrangpura, Naranpura, Ahmedabad - 380014, Dist. Ahmedabad, Gujarat
16mm nominal diameter x 6.3tonne Working Load Limit (0-45° BETA Lifting Angle) 6X36 IWRC Grade EIPS (Tensile Strength 1960N/mm2) Galvanized Steel Wire Rope Sling Both End Mechanical Spliced with Aluminium Ferrule DIN3093 Standard Length.
FREE SHIPPING FOR PENINSULAR MALAYSIA AREA (LOCAL LORRY TRANSPORTION DUE TO HEAVY WEIGHT), EAST MALAYSIA CLIENT PLEASE CONTACT WITH US FOR FURTHER ASSISTANT.
We offer Wire Rope Sling that are mainly used for transporting and shifting of load.These are highly acclaimed for features like durability, hardness and tensile strength. The sling is used in construction, marine and automobile industry. The range is also customized as per specification of client.
Naranpura, Ahmedabad No. 203, Vraj Bhumi Apartment, No. 11, Harihar Society Raman Nagar, Mani Nagar, Naranpura, Ahmedabad - 380008, Dist. Ahmedabad, Gujarat
Byculla, Mumbai No. 2/14, Pais Street, Byculla West, Opposite Kinjal Towers Near Veena Killedar Industrial Estate, Byculla, Mumbai - 400011, Dist. Mumbai, Maharashtra
Kalasipalya, Bengaluru No. 1/2, No. 3rd Cross, N. R. Road Nazz Complex, Below Vijaya Bank, Kalasipalya, Bengaluru - 560002, Dist. Bengaluru, Karnataka
Naranpura, Ahmedabad D-40, Ratilal Park, Opposite Devkinandan Jain Temple, Darpan Six Road, Navrangpura, Naranpura, Ahmedabad - 380014, Dist. Ahmedabad, Gujarat
We are reputed enterprises in this industry, offering a wide gamut of Wire Rope Sling. Appreciated for their great finish and stability, the offered rope sling is designed using high grade material and latest cold extrusion technique in compliance with international quality standards. Our rope sling is widely acclaimed for its excellent finish. Moreover, this rope sling is availed in the market at reasonable prices.
The 7-Part™ Wire Rope Sling - An Ergonomic Wire Rope Sling This sling is ultra-flexible and user friendly. It has been redesigned for higher capacities. The 7-Part™ Sling - saves money—stays manageable longer; saves time—easiest wire rope sling in the world to rig; Saves resources—easier to handle; Improves inspection—the end user is able to inspect the uncovered eyes. The small diameter slings are galvanized for clean handling and are a favorite for the maintenance department. For your large lifts, the 7-Part™ Sling is a more manageable sling at a cost savings vs. standard wire rope slings.
How much does a wire rope sling cost? How much does a shackle or a web sling cost? These are legitimate questions that we hear every day from prospective customers looking to purchase rigging products for their next lifting project.
Similar to other consumer goods like cars, electronics, and appliances, there are several factors that can raise or lower the price of rigging equipment. Our intention in this article isn’t to beat around the bush, but instead we want to provide you with some practical guidelines, as well as influential factors that can affect the cost of lifting and rigging products, including:Where do you buy your rigging gear?
Like most products and services, rigging gear can be purchased from a traditional brick and mortar location, or can be purchased online through a specialty supplier or catalog and supply house with an e-commerce site. If you’ve done some research and looked at different online suppliers, you’ll notice that there can be a huge disparity in pricing between the same types of rigging products for sale online and in a physical rigging shop.
For instance, a common Eye and Eye 2” Wide, Two-Ply Web Sling (EE2-802 X 10’) had the following prices listed on three different e-commerce websites: $24.00, $32.00, and $42.00. That same web sling was being sold for $26.00 at a brick and mortar rigging shop.
Rigging shops have long been the stalwarts of the lifting and rigging industries. Rigging shops typically have a showroom or storefront with a wide selection of sling hooks, shackles, chain, synthetic slings and wire rope. They also traditionally buy the raw materials for wire rope, webbing, steel and chain and have a shop where they can make the lifting and rigging products themselves.
The variety of rigging equipment and expertise that the rigging shops offer is unparalleled as you can speak directly with a knowledgeable salesperson to get a product recommendation. They also offer added convenience—if they have the part(s) that you’re looking for in stock, you can stop in that same day and walk out the door with what you need. This also eliminates the added expense of paying for freight to ship rigging equipment that can be large and heavy.
But do they have the best prices? Sometimes they do, but most of the time they fall somewhere in the middle of the price spectrum. The same web slings we mentioned earlier had prices ranging from $24.00 to $42.00 from three e-commerce retailers. A rigging shop might fall somewhere in the middle around $26.00 for that same web sling.
Many rigging shops pride themselves on carrying product in bulk and in a full range of sizes and configurations. While this is convenient for the customer, it also increases the shop’s inventory carrying costs, which get passed on to the end-user as a premium item price increase.
If you’re looking for the added benefit and expertise of speaking with a knowledgeable salesperson, want to browse an extensive inventory, and may have an immediate need for a piece of rigging hardware, chain sling, roundsling, or wire rope, then a rigging shop might be your best bet.
More and more, it’s becoming commonplace to order rigging gear from online retailers. For those that don’t need product variety, or value in-store sales expertise, many rigging shops and industrial suppliers are offering their products for sale through their websites, as well.
A common 1/2” X 10’, 6 X 25 Wire Center, Wire Rope Sling comes in at $29.00, $43.00, and $67.00 from three different online retailers. So, why is there such a wide pricing range for what appears to be the same product?
When doing some rigging cost comparisons, you may notice that the lowest prices seem to come from the websites that only sell lifting and rigging equipment. However, these lifting and rigging websites tend to focus on the common “bread and butter” lifting and rigging equipment and may not have a large inventory of rigging products to select from. They may also make up for their low prices by bumping up the cost of their shipping and handling fees.
Online suppliers with the more expensive wire rope and web slings tend to be larger catalog and supply houses that offer an impressive array of all types of industrial products, including rigging gear. They also offer the convenience of selling items like gloves, eye protection, spray paint, etc.—an added convenience factor that allows you to buy everything that you need from one source.
Catalog supply houses may also offer prepaid freight, or have cheaper shipping rates since they move so much product in and out the door that they receive volume freight discounts that they can then pass on to the customer.
Basic lifting and rigging gear has many options and price ranges as we noted above. When you get into non-standard sizes and lengths, your choices of where to buy are reduced due to the special nature of these products, and this leads to an increase in price, as well.
Size is always a factor when it comes to the cost of lifting and rigging products. For example, a 1-ton screw pin anchor shackle can be found for around $9.00 per piece, a 9.5-ton shackle sells for around $80.00 a piece, and a 25-ton shackle can run close to $300.00 per piece. Simply put, the more steel and more material required to produce the product, the more it’s going to cost you.
This is also true for lengths of wire rope and chain. Larger diameter wire rope, and larger and longer lengths of chain and wire rope, often fall out of the “standard” product range of suppliers other than rigging shops. If a shop has to special order a piece due to a non-standard size or length, that extra time and effort to acquire the piece will get passed on to the customers as a price markup.
High-performance and specialty items also cost more. For instance, 3/4″ 6 X 37 with wire center rope would cost around $2.50 per foot. A high-performance cable like a 3/4” Dyform 18 would cost about $4.50 per foot. But in the right application, the Dyform 18 will last much longer to justify the higher initial cost, and may also save labor costs because the customer won’t have to perform cable changes as frequently.
If you’re at your factory or job site and have a lifting application but don’t know how to make a lift or what to use to make the lift…what should you do? What most people do is contact their local rigging shop to speak with a lifting specialist. Hopefully, the shop’s specialists can help walk you through the solution over the phone, or they may prefer to come on-site and assess the job and recommend the best lifting solutions for your project.
However, highly-trained lifting specialists are compensated for their time and knowledge applied to a lifting project and therefore will increase the cost of your rigging solution. Unfortunately, you’re not going to solve your problem by e-mailing a catalog house or e-commerce rigging website’s customer service team. Their businesses are built to move rigging hardware, wire rope slings, chain slings, and synthetic slings out the door in a quick and efficient manner.
They’re not necessarily set up to offer support, troubleshoot, or help solve lifting challenges. Utilizing a lifting specialist might cost you more upfront, but will save you time and money in the long run by increasing your lifting efficiencies and providing a solution that will get the job done safely.
The cost of imported vs. domestic rigging products is a bit more involved and complicated. You have to determine if you are comfortable with an import product based on the country of origin and also make sure that it meets the same quality standards and specifications as its domestic counterpart.
Generally, imported products are cheaper in price, and in many cases, the quality is comparable to products made domestically. For instance, an imported 1/2” x 10’ 6 X 25 swaged wire rope sling would cost about $20.00—the same sling made by a company who manufactures their rigging gear in the United States would charge around $30.00.
For companies that import their rigging products, their business is built on offering their customers standard run-of-the-mill rigging products in the most popular sizes and configurations. Their manufacturing locations are built to churn out product in large batches and operate with little to no overhead. By doing so, an import supplier can offer their products at a discounted price. Unfortunately, they can’t offer their customers much in terms of variety or customized solutions.
If you do a little bit of research online, you’ll see that some of the companies that sell lifting and rigging equipment offer quantity discounts and some do not. You may see some promotions like “free shipping for orders over $50.00!” If you buy rigging equipment with some regularity, then you know that $50.00 is not a high bar to reach. You may recall from earlier in this article that one 9.5-ton shackle costs around $80 per piece, so you can hit that minimum pretty easily with the purchase of only one part.
The shops that are going to offer the most significant discount to their customers will be the brick-and-mortar rigging shops. They can, and will, offer substantial discounts for a large-quantity order, or for their high-volume customers.
Let’s face it, medium to large users of rigging equipment are not going to order their rigging products online—they will overwhelmingly buy from rigging shops because they can utilize their staff’s expertise, and also take advantage of rush or same-day delivery—two things that online sellers of rigging equipment and industrial equipment just can’t compete with.
If you’ve ever worked in a retail or service-based environment, you already know the typical customer response to the question, “when do you need it by?” The answers are often, “yesterday!” or “as soon as you can get it to me….today.” No matter what the answer is, the theme in the lifting and rigging industry is usually, “I need it now.”
So, now the pressure is on the seller to deliver the product within their customer’s time frame, or else risk losing the business. One thing that many people don’t understand is that it costs a company more money to structure itself to handle rush orders, same or next-day deliveries, and emergency repair or replacement for rigging equipment. Some of these added expenses include:Maintaining a large and diverse inventory to ensure product is in stock and available for fulfillment
These extra expenses to the seller may present themselves in the form of an additional fee for rush delivery and fulfillment on your order, or you may see it as a higher cost in freight. And you know what? You may be okay paying a few extra dollars for a sling from a local rigging shop if you know that they’re equipped to deliver an emergency replacement if your equipment were to break or fail.
Bottom line, rush orders increase the cost of your rigging products. However, if you have smaller quantities, know what you want and can wait a few days to receive your equipment, then the online rigging stores and catalog and supply houses are still a very viable option for you.
The least expensive option isn’t always the smartest buy. Research, due diligence, and working with industry experts will lead you to the best product for your application and ultimately, the best bang for your buck in the long run.
Benjamin Franklin once said, “An investment in knowledge pays the best interest.” Where you buy, what you buy, how much you buy, and how quickly you need it, all have a major determination on the price that you’ll pay for lifting and rigging gear. The time that you spend determining how these factors can get you the most value for your rigging dollar will be well spent.
At Mazzella, we provide ideal lifting solutions—offering all styles of lifting slings, rigging hardware, wire rope, overhead cranes and hoists, and engineered lifting devices. We also have locations all across the United States—fully stocked with different sizes and configurations of rigging products for your next project.
Stainless Steel Slings, Fiber Core Slings with reduced Work Load Limits, Cable Laid Slings with galvanized finish and larger diameter slings are also available.
When wire rope is bent around a load, or diameter, the rope strength is decreased. The D/d ratio is diameter of the object around which the rope is bent (D), divided by the diameter (d) of the rope. D/d affects slings used in basket hitches and must be taken into consideration. When the diameter of the load is 4 times the diameter of the wire rope sling the D/d ratio is 4/1 and the sling efficiency is 75% of the Basket WLL.
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.