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Annealing and Tapering

Annealing and Tapering

The Annealing and Tapering process is also commonly known as Fusing and Tapering in the industry, as the wire rope strands are heated to the point where they are being "fused-together", followed by the twisting process thereby producing the tapered-effect when it breaks-off.

Annealing and Tapering Process by STL 

Our steel wire rope annealing machine twists the wire rope off by annealing... Current is applied to heat the steel wire rope with the (steel wire) rope being clamped-up. As the steel wire rope turns red hot, it is then being twisted. After twisting, the steel wire rope is slightly rounded and the wires will not unwind. 

By increasing the distance between the clamping chucks the steel wire rope end becomes more pointed, e.g. ideal for excavating machines etc... 

With the expertise of our skilled workers, and utilizing our powerful in-house procured Talurit Annealer, we are able to produce wire-rope ends that are slightly rounded with a nicely tapered tip.

Annealed and tapered wire-rope not only resolves the untwisting problems often encountered, but it also makes the wire rope easier for installation into various types of fittings.


See below for the finishing-stage of the process being done in-house:

1. Heating up the clamped-up wire-rope to malleable state

2. Controlled pressure twisting and pulling starts

3. Twist and pull to breakage point - tapering  

4. Snap-off with tapered & slightly rounded tip




Steel Wire Rope completed Annealing and Tapering process - The Completed Look 



Let us recap and look at the quick overview on our annealing (wirerope treatment) process:


Feel free to contact us to find out more about how we can help you with this service, and any other enquiries which you may have. 

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