what is bird caging of wire-rope? How to prevent it

Wire-rope bird-caging is a common issue that occurs in wire rope systems used in various industries, including construction, mining, and transportation. This problem arises when the wires in a wire rope begin to twist and distort, creating a caged appearance that can weaken the rope’s integrity and ultimately lead to failure. In this article, we will explore what causes wire-rope bird-caging and how to prevent it.

What Causes Wire-Rope Bird-Caging?

Wire-rope bird-caging occurs when the wires in a wire rope become distorted and twisted, leading to a caged appearance. This issue can be caused by a variety of factors, including:

  1. Overload: If a wire rope is subjected to loads beyond its capacity, it can cause the wires to distort and twist, leading to bird-caging.
  2. Bending: Repeated bending of a wire rope can cause it to deform and twist, leading to bird-caging.
  3. Poor maintenance: Lack of proper maintenance, including lubrication and inspection, can lead to wire-rope bird-caging.
  4. Improper installation: If a wire rope is installed incorrectly, it can lead to bird-caging.
  5. Corrosion: Corrosion can weaken the wires in a wire rope and cause them to twist and distort, leading to bird-caging.

How to Prevent Wire-Rope Bird-Caging?

Preventing wire-rope bird-caging requires regular maintenance, inspection, and proper usage of the wire rope. Here are some tips to prevent wire-rope bird-caging:

  1. Proper installation: Ensure that the wire rope is installed correctly and according to the manufacturer’s specifications.
  2. Regular inspection: Regularly inspect the wire rope for signs of wear and tear, distortion, and bird-caging.
  3. Lubrication: Proper lubrication of the wire rope can prevent corrosion and reduce friction, which can cause bird-caging.
  4. Avoid overload: Do not exceed the wire rope’s capacity as it can cause deformation and bird-caging.
  5. Minimize bending: Minimize the bending of the wire rope to prevent deformation and bird-caging.
  6. Proper storage: Store the wire rope in a dry and clean area to prevent corrosion.


Wire-rope bird-caging is a common problem that can weaken the integrity of a wire rope, leading to failure. However, with proper maintenance, inspection, and usage, wire-rope bird-caging can be prevented. Regular inspection, lubrication, and avoiding overload and bending are some of the ways to prevent wire-rope bird-caging. By following these tips, you can extend the life of your wire rope and ensure safe and efficient operation in various industries.