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Considerations for Choosing the Right Wire Rope

Considerations for Choosing the Right Wire Rope

Issue Time:2022/02/17
the rope laying methods and safety measures of elevator wire ropes

When choosing the right type of wire rope, you need to consider a number of factors to ensure optimal performance and safety, as well as extend the life of the rope.

There are 7 characteristics of wire rope, design characteristics to help you select the wire rope to give you the optimum safety and service life for your wire rope:

1. Strength

2. Resistance to fatigue

3. Bend ability

4. Resistance to crushing

5. Resistance to metal loss & deformation

6. Resistance to rotation

7. Corrosion resistance

Considering strength, note the potential workload. For example, will the steel wire rope experience dynamic loads caused by abrupt acceleration, shock loads, sudden stops, dead weight, and high speeds.

Vibration fatigue is caused by anything that can send a shockwave through the rope. Because this energy must be absorbed and since absorption takes place at different points along the rope, choose the right product based on the shockwave type.

When a wire rope is repeatedly bent, it begins to fatigue to the point of eventual failure preceded by telltale broken wires. For that reason, considering the diameter of the rope wires, smaller wires tend to give longer bending fatigue life. Fatigue can also be reduced by using larger diameter sheaves and drums.

With crushing, external pressure is applied to the rope, causing distortion to the cross-section. At that point, the rope can no longer move and adjust as it should. Larger outer wires and strands & rope compacting make for a more crush-resistant, stable wire rope.

Think about resistance to metal loss and deformation when selecting a wire rope. Of the conditions deemed destructive to wire rope, this is very common. Although this often happens at the sheaves and drums, it can also occur when the rope rubs against itself or an object.

Larger outside wires and compaction of rope or strands will last longer than smaller, non-compacted wire ropes & strands when resisting metal loss and deformation.

A wire rope is used as a crane hoist line, single part or multi-part, where rotation resistance is important, there are many rotation resistant wire ropes to choose from. Ranking from the least Resistant to Rotation, 19x7 or 19x19. If these don’t satisfy your rotation issue, 35x7 class wire ropes are the most Rotation Resistant commonly available and should solve most any Rotation problems.

Should your application require the wire rope to go around some relatively small sheaves and drums, you will need a wire rope that is more bendable. A wire rope with a small outer diameter wire will be more bendable than one with a larger outer wire.

Standard Bright wire ropes are not very resistant to corrosion. The only protection that they have is a fairly thin layer of lubricant/corrosion preventative to keep them from corroding. If additional protection is required, you can first try heavy, often applied lubrication. Next, to reduce corrosion, Drawn Galvanized wire rope is available in most sizes and constructions.

If you want to know more about wire rope after reading the above, please continue to pay attention to our news.

With excellent manufacturing technology and leading production technology, TERADA has quickly become a leader in the hardware supply industry. We are equipped with a professional quality inspection system, which can control the quality of our products in an all-round way. At the same time, we will also customize professional solutions according to the diverse needs of users. If you want to buy our wire rope, please contact us immediately! 
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