Strands: Semi-concentric strands

In semi-concentric strands, the individual wires are subject to an exact positioning, yet without an additional core wire, which ensures an all-out uniform structure.


Applications

  • Extrusion: thin-gauge coating with high-grade isolation materials

Particular benefits for our customers

  • Uniform elongation of single wires
  • Low tolerances, even in single wires (even outperforming ASTM)

Manufacturing range

  • Materials: Cu-ETP1 and Cu-OF1
  • Bare, tin-plated, nickel-plated, silver-plated
  • Left-hand lay or right-hand lay
  • Variation: soft annealed
  • Single-wire diameter: ranging from Ø 0.05 mm to Ø 0.51 mm
  • Cross-section: ranging from 0.03 mm2 to 16 mm2

Construction

The following strand constructions are possible, which depend upon the number of core wires:

10-wire semi-concentric conductor
24-wire semi-concentric conductor

2 core wires:

2 + (2 + 6) = 10 ends
2 + (2 + 6) + (2 + 6 + 6) = 24 ends …
2 + ∑n (2 + n * 6)

14-wire semi-concentric conductor
30-wire semi-concentric conductor

4 core wires:

4 + (4 + 6) = 14 ends
4 + (4 + 6) + (4 + 6 + 6) = 30 ends …
4 + ∑n (4 + n * 6)

12-wire semi-concentric conductor
27-wire semi-concentric conductor

3 core wires:

3 + (3 + 6) = 12 ends
3 + (3 + 6) + (3 + 6 + 6) = 27 ends …
3 + ∑n (3 + n * 6)

16-wire semi-concentric conductor
33-wire semi-concentric conductor

5 core wires:

5 + (5 + 6) = 16 ends
5 + (5 + 6) + (5 + 6 + 6) = 33 ends …
5 + ∑n (5 + n * 6)


Packaging

Reel sizes from 80 mm (1 kg) to 630 mm (400 kg), subject to diameter

Packaging information

Other dimensions and materials

You need special designs and products for your applications?

Our R&D team is your partner for customised solutions.

Please contact!


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