ordinary lay wire rope made in china
Wire ropes can be seen everywhere around us, they are made of strands or bundles of individual wires constructed around an independent core, suitable for construction, industrial, fitness, commercial, architectural, agricultural, and marine rigging applications.
Wire rod is made from high carbon steel wires(0.35 to 0.85 percent carbon) in a hot rolling process of a required diameter, usually from 5.5mm to 8 mm.
Wire rod is drawn to the required diameter by the 1st drawing machine after descaling dust and rust, adding mechanical properties suitable for application.
Positioning the wires different or the same size lay in multiple layers and same direction, or cross lay and diameter is maintained by one-third of the rope size.
So in theory, it is very simple to manufacture wire ropes. However there are many more details that must be closely monitored and controlled, and this requires time and experienced personnel since it is a super complicated project you cannot imagine.
9 Strand elevator wire ropes with steel core are constructed with Seale, Filler or Warrington strand. The construction rope has excellent bend fatigue, very good elongation properties and crushing resistance. The steel core wire ropes can enhance the contact on drum and sheaves.
Our elevator rope wire is made from redrawn galvanized wires. They are designed for use in traction- and deflection sheaves. Featuring high tensile strength and excellent ductility, the wire helps increase the service life of your rope.
6×19 construction wire rope is available with either FC (fibre core) or WSC (wire strand core). When supplied with a wsc the rope is more commonly referred to as 7×19. The rope is very popular in diameters from 3mm to 16mm and is used on a variety of applications. 6×19 FC and 6×19 WSC (7×19) is very flexible in diameters 3mm to 6mm and is used for many requirements where wire ropes are running over pulleys. 7×19 construction is readily available in both galvanised and marine grade stainless steel.
Wire rope is made of plaiting strands of wire – normally medium carbon steel –into a thick cable. The strands are formed around a core. The strands in wire ropes are made of wore twisted together. Strands with smaller diameter wires are less abrasion resistant and more fatigue resistant. Strands made with thicker length of wore are more abrasion resistant and less fatigue resistant.
Left-hand ordinary lay (LHOL) wire rope (close-up). Right-hand lay strands are laid into a left-hand lay rope. Right-hand Lang"s lay (RHLL) wire rope (close-up). Right-hand lay strands are laid into a right-hand lay rope.
Left hand lay or right hand lay describe the manner in which the strands are laid to form the rope. To determine the lay of strands in the rope, a viewer looks at the rope as it points away from them. If the strands appear to turn in a clockwise direction, or like a right-hand thread, as the strands progress away from the viewer, the rope has a right hand lay. The picture of steel wire rope on this page shows a rope with right hand lay. If the strands appear to turn in an anti-clockwise direction, or like a left-hand thread, as the strands progress away from the viewer, the rope has a left hand lay.
Ordinary and Lang"s lay describe the manner in which the wires are laid to form a strand of the wire rope. To determine which has been used first identify if left or right hand lay has been used to make the rope. Then identify if a right or left hand lay has been used to twist the wires in each strand. Ordinary lay The lay of wires in each strand is in the opposite direction to the lay of the strands that form the wire.
Alternate lay The lay of wires in the strands alternate around the rope between being in the opposite and same direction to the lay of the strands that form the wire rope.
The specification of a wire rope type – including the number of wires per strand, the number of strands, and the lay of the rope – is documented using a commonly accepted coding system, consisting of a number of abbreviations.
This is easily demonstrated with a simple example. The rope shown in the figure "Wire rope construction" is designated thus: 6x19 FC RH OL FSWR 6 Number of strands that make up the rope
Each of the sections of the wire rope designation described above is variable. There are therefore a large number of combinations of wire rope that can be specified in this manner. The following abbreviations are commonly used to specify a wire rope. Abbr. Description
The end of a wire rope tends to fray readily, and cannot be easily connected to plant and equipment. A number of different mechanisms exist to secure the ends of wire ropes to make them more useful. The most common and useful type of end fitting for a wire rope is when the end is turned back to form a loop. The loose end is then fixed by any number of methods back to the wire rope.
When the wire rope is terminated with a loop, there is a risk that the wire rope can bend too tightly, especially when the loop is connected to a device that spreads the load over a relatively small area. A thimble can be installed inside the loop to preserve the natural shape of the loop, and protect the cable from pinching and abrasion on the inside of the loop. The use of thimbles in loops is industry best practice. The thimble prevents the load from coming into direct contact with the wires.
A wire rope clamp, also called a clip, is used to fix the loose end of the loop back to the wire rope. It usually consists of a u-shaped bolt, a forged saddle and two nuts. The two layers of wire rope are placed in the u-bolt. The saddle is then fitted over the ropes on to the bolt (the saddle includes two holes to fit to the u-bolt). The nuts secure the arrangement in place. Three or more clamps are usually used to terminate a wire rope.
Swaging is a method of wire rope termination that refers to the installation technique. The purpose of swaging wire rope fittings is to connect two wire rope ends together, or to otherwise terminate one end of wire rope to something else. A mechanical or hydraulic swager is used to compress and deform the fitting, creating a permanent connection. There are many types of swaged fittings. Threaded Studs, Ferrules, Sockets, and Sleeves a few examples.
A socket termination is useful when the fitting needs to be replaced frequently. For example, if the end of a wire rope is in a high-wear region, the rope may be periodically trimmed, requiring the termination hardware to be removed and reapplied. An example of this is on the ends of the drag ropes on a dragline. The end loop of the wire rope enters a tapered opening in the socket, wrapped around a separate component called the wedge. The arrangement is knocked in place, and load gradually eased onto the rope. As the load increases on the wire rope, the wedge become more secure, gripping the rope tighter.
6 x 19 wire rope is a general purpose steel rope that’s widely used and is commonly used for winch lines, skylines and chokers. This wire rope overs a great overall combination of both flexibility and wear resistance.
* EIPS (Extra Improved Plowed Steel) wire rope has roughly 10% more strength than regular IPS. Independent wire rope core ( IWRC ) provides added strength, reduces the amount of stretch. IWRC wire rope also is resistance to heat and provides extra corrosion resistance over a typical bright wire finish.
When discussing the physical properties of wire rope, people often focus on the material, strength, and size specifications above all else. While these details are essential to understand how a product will survive in the field, they are not the only factors that drive cable performance. In fact, the lay direction of a cablehas as much impact on its functionality as any of the other aforementioned characteristics, because it determines how much a cable will rotate, twist, and kink.
Lay direction describes the relationship between the way wires are wrapped into strands, and the way those strands are wrapped into wire ropes and cables. In general, there are two different configurations of lay directions: regular lay, and lang lay, which can rotate either to the left or to the right.
In a regular lay cable, the wires and strands are laid opposite to each other. In other words, all of the wires are laid in one direction as they are made into strands, and those strands are then laid in the opposite direction of the wires as they are combined into cable. When looking along a length of regular lay cable, the wires will appear to run parallel and straight the entire way. You can tell a cableis right regular lay because the strands will all flow to the right, or clockwise direction, compared to a regular left lay cable which flows the strands in a leftward, counterclockwise direction.
In a lang lay configuration, the wires and strands are laid in the same direction. If all the wires are laid to the right as they are made into strands, then those strands will also be laid to the right as they are combined into cable. The same applies to a left lang lay configuration, where both the wires and strands would lay to the left. When looking along a length of lang lay cable, the wires will appear to angle across the rope, following the general flow of the strands. You can tell a cable is a right lang lay cable because both the wires and strands will flow rightward, in a clockwise direction. A left lang lay cable flows both wires and strands in a leftward, counterclockwise direction.
Cable is generally manufactured with a standard right regular lay because it is useful for a variety of different applications and complies with most equipment. In general, regular lay cable is more resistant to crushing forces than lang lay cable of an identical material and size, though lang lay cable is typically more flexible. Lang lay cables are usually more susceptible to pinching and kinking than regular lay, which means they are better suited to hoisting applications where the cable only moves along one axis.
In summary, the wires and strands in regular lay cable flow in opposite directions while the wires and strands in lang lay cable flow in the same direction. Lang lay cable is great for lifting, hoisting, and push-pull applications, while regular lay cable outperforms in situations where bends are required. To learn about our range of flexible, non-rotating, and non-flexible wire rope and aircraft cable, visit https://strandcore.com/products/aircraft-cable/ or contact us at https://strandcore.com/contact/.
The new report by Expert Market Research titled, ‘Global Steel Wire Rope Market Report and Forecast 2021-2026’, gives an in-depth analysis of the global steel wire rope market, assessing the market based on types of lay, strand patterns, steel types, coating types, applications, and major regions. The report tracks the latest trends in the industry and studies their impact on the overall market. It also assesses the market dynamics, covering the key demand and price indicators, along with analysing the market based on the SWOT and Porter’s Five Forces models.
The global steel wire rope market is being driven by the increasing demand from major application sectors, such as oil and gas and heavy machinery. The Asia Pacific is one of the leading regions in the global steel wire rope industry. Steel wire rope consumption and sales are extremely high in the Asia Pacific, especially in China, Indonesia, and India. The steel wire rope industry in China has grown significantly over the last decade owing to the growing production of steel and rising investments in infrastructure activities involving lifting and motion applications. The increasing construction activities in China are expected to provide enhanced growth opportunities to the market in the forecast period.
A steel wire rope, which is composed of wires, strands, and a core made of steel and fibre, is a machinery commonly used in construction, mining, oil and gas, and marine sectors, among others. The function of the core is to sustain the external strands and protect them as they function. The wires, which are primarily made of stainless steel and high carbon steel, are twisted into strands to finally produce steel wire ropes.
The steel wire rope industry is expected to witness a healthy growth as a result of the product’s expanding applications in various sectors such as marine and fishery, and industrial and crane, among others. Steel wire ropes are light, strong, corrosion resistant, have low specific gravity and excellent elasticity, and are easy to mould. These ropes are favoured in these sectors because of their excellent impact resistance, longevity, high strength, abrasion resistance, and corrosion resistance. In the coming years, the rapid urbanisation and industrialisation and the growth of these sectors, particularly in emerging nations, are expected to drive the market growth.
The major players in the market are Cortland Limited, Anchor Industries Pty Ltd, Samson Rope Technologies, Inc., Chung Woo Rope Co. Ltd, Teufelberger Holding AG, Fasten Group, and Bekaert Group, among others. The report covers the market shares, capacities, plant turnarounds, expansions, investments and mergers and acquisitions, among other latest developments of these market players.
Wire ropes are ropes made from wires. It consists of several strands of metal wire laid or twisted into a helix. These preformed strands are then twisted around the core to complete the rope. The core supports and maintains the circular structure of a rope. The distance between one complete revolution of a strand is called as lay. Two major and opposing characteristics of wire rope slings are flexibility and resistance to abrasion.
Mechanical wear in steel wire ropes is the removal of uniform material from outer wires due to mechanical abrasions and leads to decrease the wire rope diameter and friction.
The individual wires that make up in the strands in a wire rope can be due to various reasons including pulling the rope across sharp edges or protrusions.
Corrosions are due to the absence of lubrication and discoloration of rope. Corrosion may affect the properties of the wire rope and leads to internal and external cracks on the rope.
A competent person must begin a visual inspection prior to each shift the equipment is used, which must be completed before or during that shift. The inspection must consist of observation of wire ropes (running and standing) that are likely to be in use during the shift for apparent deficiencies, including those listed in paragraph (a)(2) of this section. Untwisting (opening) of wire rope or booming down is not required as part of this inspection.
Significant distortion of the wire rope structure such as kinking, crushing, unstranding, birdcaging, signs of core failure or steel core protrusion between the outer strands.
In running wire ropes: Six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay, where a rope lay is the length along the rope in which one strand makes a complete revolution around the rope.
In rotation resistant ropes: Two randomly distributed broken wires in six rope diameters or four randomly distributed broken wires in 30 rope diameters.
In pendants or standing wire ropes: More than two broken wires in one rope lay located in rope beyond end connections and/or more than one broken wire in a rope lay located at an end connection.
If a deficiency in Category I (see paragraph (a)(2)(i) of this section) is identified, an immediate determination must be made by the competent person as to whether the deficiency constitutes a safety hazard. If the deficiency is determined to constitute a safety hazard, operations involving use of the wire rope in question must be prohibited until:
If the deficiency is localized, the problem is corrected by severing the wire rope in two; the undamaged portion may continue to be used. Joining lengths of wire rope by splicing is prohibited. If a rope is shortened under this paragraph, the employer must ensure that the drum will still have two wraps of wire when the load and/or boom is in its lowest position.
If a deficiency in Category II (see paragraph (a)(2)(ii) of this section) is identified, operations involving use of the wire rope in question must be prohibited until:
The employer complies with the wire rope manufacturer"s established criterion for removal from service or a different criterion that the wire rope manufacturer has approved in writing for that specific wire rope (see § 1926.1417),
If the deficiency is localized, the problem is corrected by severing the wire rope in two; the undamaged portion may continue to be used. Joining lengths of wire rope by splicing is prohibited. If a rope is shortened under this paragraph, the employer must ensure that the drum will still have two wraps of wire when the load and/or boom is in its lowest position.
If the deficiency (other than power line contact) is localized, the problem is corrected by severing the wire rope in two; the undamaged portion may continue to be used. Joining lengths of wire rope by splicing is prohibited. Repair of wire rope that contacted an energized power line is also prohibited. If a rope is shortened under this paragraph, the employer must ensure that the drum will still have two wraps of wire when the load and/or boom is in its lowest position.
Where a wire rope is required to be removed from service under this section, either the equipment (as a whole) or the hoist with that wire rope must be tagged-out, in accordance with § 1926.1417(f)(1), until the wire rope is repaired or replaced.
Wire ropes on equipment must not be used until an inspection under this paragraph demonstrates that no corrective action under paragraph (a)(4) of this section is required.
At least every 12 months, wire ropes in use on equipment must be inspected by a qualified person in accordance with paragraph (a) of this section (shift inspection).
The inspection must be complete and thorough, covering the surface of the entire length of the wire ropes, with particular attention given to all of the following:
Exception: In the event an inspection under paragraph (c)(2) of this section is not feasible due to existing set-up and configuration of the equipment (such as where an assist crane is needed) or due to site conditions (such as a dense urban setting), such inspections must be conducted as soon as it becomes feasible, but no longer than an additional 6 months for running ropes and, for standing ropes, at the time of disassembly.
If the deficiency is localized, the problem is corrected by severing the wire rope in two; the undamaged portion may continue to be used. Joining lengths of wire rope by splicing is prohibited. If a rope is shortened under this paragraph, the employer must ensure that the drum will still have two wraps of wire when the load and/or boom is in its lowest position.
Q: Manufacturer or Trader?A: We are manufacturer in wire industry for more than 20 years. Q: Producing Capacity?A: The producing capacity totally is 9, 000 tons per month. The producing capacity of this product is 1,500 tons per month.Q: Main Market?A: Our main market is foreign customers. 80% of the products are for exporting. The main countries are Japan, South Korea, South Asian area, Europe, America, Canada, and South America etc.Q: What is the MOQ?A: For quality checking, we accept small quantity order like one coil. For normal cooperation, we prefer FCL container quantity to ensure the safety of goods in transportation.Q: What is the payment term?A: T/T; L/C; D/P etcQ: Free sample available?A: Yes. Free sample within 2kg is availableQ: Third Party Inspection available?A: Yes, available. The charges are on the buyer.
It is important to attach steel wire ropes at the correct locations on a smooth drum as improper winding methods will cause the spreading of terns in the first layer of steel wire ropes on the drum. Then the second layer of wire ropes may be wedged between the open coils of first layer, crushing and flattening the rope as successive layers are spooled.
Generally, steel wire ropes are wound from the top of the one reel to the top of another or from the bottom to bottom. But how to start wire ropes on a drum may puzzle lots of our customers. The following illustration will give you the best solution.
between 2021 and 2026. Steel wire ropes and plastic ropes are demanded in various applications including marine & fishing, sports & leisure, oil & gas, industrial & crane, mining, construction, and others; due to its advantages properties such as high durability, temperature resistance, extremely lightweight, and highly stiff and good strength.
New York, May 10, 2021 (GLOBE NEWSWIRE) -- Reportlinker.com announces the release of the report "Steel Wire Rope & Plastic Rope Market by Type of Lay, Material Type, Application Region - Global Forecast to 2026" - https://www.reportlinker.com/p05806378/?utm_source=GNW
However, global pandemic disease COVID-19 has disrupted the operations of various end-use applications which has decrease the demand for steel wire rope & plastic rope in 2020.
Regular lay ropes are more resistant to crushing forces, more naturally rotation-resistant, and spool better in a drum than lang lay ropes. They are used for various applications, such as industrial & crane, mining, oil & gas, construction, and fishing & marine.
Polyester ropes are widely used for boat lines and sailing applications as they provide good strength, durability, relatively low stretch, and reasonable prices.Polyester ropes have good UV resistance, and unlike nylon, they retain their strength under wet conditions.
Unlike nylon or polypropylene, polyester is not stretchy.It is usually used as an outside coating to a rope having a Kevlar core, which is UV-sensitive.
Some of the disadvantages of polyester ropes are that these are not suitable if the load is subject to jerking.They do not provide strength like the nylon ropes.
For several applications, polyester might only be used as the outside protective layer, as it has excellent abrasion resistance. Polyester ropes are often used for winches, capstans, and block & tackles. They have low stretch and low creep
In sports & leisure application, plastic ropes are used in racing cars, exercise machines, camera flying rigs, static lines, stunt rigging, tie-downs, and accessory cords.Tent shinning line made of HMPE fiber, glider lines, kite surfing line, safety rope lines, climbing ropes, fitness ropes, parachute cords, and camping ropes are some of the other types of plastic ropes used in this industry.
Various plastic ropes are used that are made of polypropylene, polyester, nylon, and others.They are also used in the filmmaking industry for controlling the camera lines.
The market in this application has growth potential during the forecast period, as the ropes also help in rescue and safety operations during any sports activity.
APAC is projected to register the highest CAGR in terms of value in the global steel wire rope & plastic rope market during the forecast period.The growth of the steel wire rope & plastic rope industry in this region is supported by the recovery in end-use industries, the advancement of industrial technology solutions.
The steel wire rope market in APAC is driven by the increasing consumption in the industrial & crane, mining, and construction sectors. The increased urbanization and industrial development in countries such as China, India, and Japan are also driving the market in the region.
Due to COVID-19, numerous industries and companies have halted their production sites across various countries that has led to reduced demand for steel wire ropes & plastic ropes in APAC countries. The recovery in the end-use applications with restoration in the supply chain would drive the steel wire ropes & plastic ropes demand during the forecast period.
This report covers the global steel wire rope & plastic rope market and forecasts the market size until 2026.The report includes the market segmentation –Steel wire ropes; By type of Lay (Regular lay & Lang lay), Plastic rope; By Material Type (Polypropylene, Polyester, Nylon, HMPE, and Specialty fibers), Application (Marine & Fishing, Sports & Leisure, Oil & Gas, Industrial & Crane, Mining, Construction, and Others) and Region (Europe, North America, APAC, Latin America, and MEA).
Porter’s Five Forces analysis, along with the drivers, restraints, opportunities, and challenges, are discussed in the report. steel wire rope & plastic rope
1. This report segments the global steel wire rope & plastic rope market comprehensively and provides the closest approximations of the revenues for the overall market and the sub-segments across different verticals and regions.
2. The report helps stakeholders understand the pulse of the steel wire rope & plastic rope market and provides them with information on key market drivers, restraints, challenges, and opportunities.
The report will help market leaders/new entrants in this market by providing them with the closest approximations of the revenues for the overall steel wire rope & plastic rope market and the sub-segments.This report will help stakeholders to understand the competitive landscape and gain more insights and position their businesses and market strategies in a better way.