Stranding Dies

Stranding dies also commonly known as bunching dies, compacting dies, or cabling dies allow multiple wire strands to come into same die, thereby creating compact-cable.

The die geometry of Stranding dies is no different from other drawing dies. The only exception to this is a considerably increased reduction angle.

  • Bell: The Bell of a Stranding Die has to kept broad enough so that the arriving wires from the lay-plate enter in without any scraping.
  • Tolerance: It is generally +/-1% of the whole diameter.
  • Reduction Angle: The wider reduction angle allows much better blend from bell to the reduction angle.
  • Bearing Length: Since, trading dies are used to gather the wires entering from lay plate into the cable machine, the bearing length is not significant. IN case if concentric and unilay constructions, bearing length is kept longer to hold wire uniformly as they enter machine.
  • Die Surface: The Die-surface should be well-blended devoid of any sharp edges.

Stranding Dies allow laving together of a number of soft or hard wires such that each wire holds its place in the strand. These are pairs of dies, which on placing in die-holder, form circular shaped hole, allowing passage of stranded wires forming the finished strand.

Nib Material

Bore Size(mm)

Carbide, PCD, Natural Diamond, Synthetic Single Diamond, Ceramic


Stranding dies can be used for guiding or moving through and even exit for wire strands while forming compact-cable or conductors.


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