wire rope catalogue manufacturer

Wire rope strength in the United States is typically shown in tons of 2,000 lbs. The wire rope strength is shown as minimum breaking force (MBF). This is a calculated strength that has been accepted by the wire rope industry. When tested on a tensile machine, a new rope will break at a value equal to- or higher than – the minimum breaking force shown for that rope. The published values apply to new, unused rope. A rope should never operate at – or near- the minimum breaking force. The minimum breaking force of the rope must be divided by the design factor required for the application to determine the maximum load allowed on the rope. During its useful life, a rope loses strength gradually due to natural causes such as surface wear and metal fatigue.

Fatigue resistance involves fatigue of the wire used to make up a rope. To have high fatigue resistance, wires must be capable of bending repeatedly under stress – for example, as a loaded rope passes over a sheave during operation. Increased fatigues resistance is achieved in a rope design by using a large number of wires. It involves both the wire properties and rope construction. In general, a rope made of many wires will have greater fatigue resistance than a same – size rope made of fewer, larger wires because smaller wires have a greater ability to bend as a rope passes over a sheave or around drums. To overcome the effects of fatigue, ropes must never bend over sheaves or drums with a diameter so small as to bend wires excessively. Standard for specific applications contain requirements for minimum sheave and drum sizes. Every rope is subject to metal fatigue from bending stress while in operation, and therefore the rope’s strength gradually diminishes as the rope is used.

Crushing is the effect of external pressure on a rope, which damages it by distorting the cross-section shape of the rope, its strands or core -or all three. Crushing resistance therefore is a rope’s ability to withstand or resist external forces, and is a term generally used to express comparison between ropes. When a rope is damaged by crushing, the wires, strands and core are prevented from moving and adjusting normally during operation. In general, IWRC ropes are more crush

resistant than fiber core ropes. Regular lay ropes are more crush resistant than lang lay ropes. 6-strand ropes have greater crush resistance than 8-strand ropes or 19-strand ropes. Compacted strand ropes are more resistant than standard round-strand ropes.

When a load is placed on a rope, torque is created within the rope as wires and strands try to straighten out. This is normal and the rope is designed to operate with this load-induced torque. However, this torque can cause both single part and multiple part hoisting systems to rotate. Load induced torque can be reduced by specially designed ropes. In standard 6 and 8- strand ropes, the torques produced by the outer strands and the IWRC are in the same direction and add together. In rotation-resistant ropes, the lay of the outer strands is in the opposite direction to the lay of the inner strands, thus the torques produced are in opposite directions and the torques subtract from each other.

Wire rope engineers design those parts in differing steel grades, finishes and a variety of constructions to attain the best balance of strength, abrasion resistance, crush resistance, bending fatigue resistance and corrosion resistance for each application. To select the best wire rope for each application, one must know the required performance characteristics for the job and enough about wire rope design to select the optimum combination of wire rope properties. The following information is presented as a basic guide. Bridon American engineers and field service specialists are available to provide more specific recommendations.

Wire rope strands are designed with various combinations of wires and wire sizes to produce the desired resistance to fatigue and abrasion. Generally, a small number of large wires will be more abrasion resistant and less fatigue resistant than a large number of small wires. Finish Bright finish is suitable for most applications. Galvanized finish is available for corrosive environments. Plastic jacketing and encapsulation is also available on some constructions. Wire Grades The most common steel wire grades are: IPS (Improved Plow Steel), EIP (Extra Improved Plow Steel) and EEIP (Extra Extra Improved Plow Steel). Stainless Steels and other special grades are provided for special applications. Most wire ropes are made with round wires. Both triangular and shaped wires are also used for special constructions. Generally, the higher the strength of the wire, the lower its ductility will be.

Introducing our brand new Performance Wire Ropes Catalog. Included in this catalog is our crane usage table, our high performance compacted strand ropes, category 1 and 2 ropes, and end fittings and connections. Call 215-721-9333 to get a physical copy, or click below to download a PDF version.

Our team understands that choosing the right cable assembly manufacturer, and pulleys for your cable assemblies requires thoughtful consideration, from bearing life, to minimum pulley diameter. Let Sava"s engineering expertise guide you toward the best selection of wire rope pulley wheels.

When cable is used over pulleys, the cable life can be significantly prolonged by proper pulley groove design. Laboratory tests on wire rope pulleys prove that improper groove design reduces cable bending life up to 90%. These same tests show that doubling a pulley diameter can increase cable bending life up to thirteen times what is otherwise typical. Also, pulley diameters less than sixteen rope diameters fall into a range in which cable life is relatively low.

Wirerope Works, Inc. manufactures Bethlehem Wire Rope®, the trade name under which we produce, sell and service our wire rope and strand products. The name "Bethlehem Wire Rope" represents the most complete facility and experienced personnel in North America. Our 46-acre manufacturing complex in Williamsport, Pennsylvania, with over 620,000 square feet under roof, is the single largest wire rope manufacturing facility in North America. Wirerope Works, Inc. manufactures its own wire, wire rope, structural strand, and all fabricated products such as pendants and other assemblies on the same premises.

Bethlehem brand wire rope and strand products have long been recognized worldwide for superior quality. Used for both lifting and stabilizing, Bethlehem Wire Rope products are used in a wide variety of applications ranging from crane and elevator hoist ropes to bridge suspension and anchoring offshore platforms. Wirerope Works, Inc. serves many industries including construction, logging, marine, mining, oil and gas, and steel.

PersonalWe are on hand to personally guide you through the entire process, we translate the jargon, we recommend what’s best, and we are always here in person. No nonsense, just straight talking people who always exceed expectations through our extensive wire rope knowledge and superior service.

Use our thorough list of wire rope manufacturers and suppliers in Ontario to examine and sort top wire rope manufacturers with previews of ads and detailed descriptions of each product. Any wire rope manufacturers can provide wire rope products to meet your company"s specific qualifications. An easy connection to reach wire rope manufacturers through our fast request for quote form is provided as well. This source is right for you whether it"s for cable railing, marine rigging, or any other wire rope needs.

Southwest Wire Rope"s Engineering Services Department provides engineered lifting devices, lift plans, and engineered load testing services under the leadership of experienced Professional Engineers with extensive experience in heavy lifting.

Using an active, in-line, anti-friction swivel with the majority of types and classes of wire ropes is detrimental to their service life and can lead to unpredictable conditions during operation. This product bulletin provides the basic reasoning behind why swivels aren"t recommended for use with wire ropes except for those that exhibit a similar torque characteristic to that of a category 1 rotation-resistant rope.

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