Things to Consider in Selecting Wire Rope Slings وقت كامل وظيفة

This blog post is part of a new feature on AWRF where our members provide valuable insight into the industry.

Mishandling of workplace materials is the single largest cause of accidents in the workplace. Fortunately, most of these accidents are avoidable. With wire rope slings playing an important role with cranes, derricks, and hoists, it’s important to understand how to make a proper selection.

A wire rope sling is made of wire rope. It is composed of single wires that have been twisted into strands. These strands are then twisted to form a wire rope.

Here are 4 important characteristics to keep in mind when selecting a wire rope sling

1. StrengthWire Rope Fittings

Wire rope can be prone to fray easily at the ends making it difficult to connect to equipment. Wire rope fittings or wire rope terminations are used to secure the ends of wire rope and prevent fraying. There are many different types, sizes and finishes of wire rope fittings which are suitable for most types of rope. Some of the more common types of wire rope fittings are detailed below.

Wire Rope ThimblesSteel wire rope is several strands of metal wire twisted into a helix forming a composite “rope”, in a pattern known as “laid rope”. Larger diameter wire rope consists of multiple strands of such laid rope in a pattern known as “cable laid”.

In stricter senses the term “steel wire rope” refers to diameter larger than 3/8 inch (9.52 mm), with smaller gauges designated cable or cords. Initially wrought iron wires were used, but today steel is the main material used for wire ropes.

Wire Rope Inspections EN

Historically, steel wire rope evolved from wrought iron chains, which had a record of mechanical failure. While flaws in chain links or solid steel bars can lead to catastrophic failure, flaws in the wires making up a steel cable are less critical as the other wires easily take up the load. While friction between the individual wires and strands causes wear over the life of the rope, it also helps to compensate for minor failures in the short run.

Steel wire ropes were developed starting with mining hoist applications in the 1830s. Wire ropes are used dynamically for lifting and hoisting in cranes and elevators, and for transmission of mechanical power. Wire rope is also used to transmit force in mechanisms, such as a Bowden cable or the control surfaces of an airplane connected to levers and pedals in the cockpit. Only aircraft cables have WSC (wire strand core). Also, aircraft cables are available in smaller diameters than steel wire rope. For example, aircraft cables are available in 3/64 in. diameter while most wire ropes begin at a 1/4 in. diameter. Static wire ropes are used to support structures such as suspension bridges or as guy wires to support towers. An aerial tramway relies on wire rope to support and move cargo overhead.

Why Choose Dyneema Rope Vs Steel Wire Rope For Heavy-Duty Rigging?

Manufacturing companies choose to use Dyneema rope over steel wire rope for heavy lifting applications such as heavy lift slings, crane rope, and other rigging operations because Dyneema rope:PVC-coated wire rope, nylon-coated wire rope, or no coating at all? Unsure about which of these is appropriate for your application? Read on and find out.

Coated wire rope has a plastic or nylon coating which enhances the rope’s resistance to both corrosion and wear-and-tear. It also provides a soft protective shield for stainless steel and galvanized wire ropes. Nylon is hard wearing, that is, very abrasion resistant and mostly immune to peeling.

COATED WIRE COLOURS

Manufacturers produce coated wire rope in a variety of colours but the most popular being white, black, and clear. Perhaps due to practical aesthetics, neutral colours blend more easily into the background. Coated wires can appear invisible or non-existent from a reasonable distance, making it popular choice for rigging and suspension applications in many industries.

COATED WIRE APPLICATIONS