Copper products: High flexible strands and ropes

Definition

High-flexible round strands and ropes suitable for extrusion. Apart from their extraordinary flexibility, these product types are characterized by an extremely long flex life.


Applications

  • A multitude of applications in cables and conductors
  • Strong demand for constructions for moving applications, such as robots or cable carriers

Particular benefits for our customers

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

Manufacturing range


Construction

The constructional combinations listed in the following table can be ordered as bunches and as rope-lays (7-end construction).

  • Lay length for bunches: 25 to 50 times the diameter of the strand
  • Lay length for rope-lays: 8 to 16 times the strand diameter at final rope-stranding stage
Nominal cross-section (mm2)Min. number of wiresDiameter of stranded conductor (mm)Weight (kg/km)
Wire Ø 0.05 mm
0.02100.180.175
0.029150.220.262
0.041210.260.367
0.059300.310.524
0.079400.360.7
0.1510.40.89
0.14720.51.26
0.21020.61.78
0.251280.652.24
0.351800.753.24
0.52660.954.75
0.753851.157.06
15251.359.39
Nominal cross-section (mm2)Min. number of wiresDiameter of stranded conductor (mm)Weight (kg/km)
Wire Ø 0.1 mm
0.5640.954.56
0.75961.156.84
11261.39.13
1.51891.6513.7
2.53222.2523.4
45112.937.1
67773.656.5
1012814.894.9
1620586.1153
2531857.6236
3545089.2334
50637010.8472
70891812.8661
1001234815879.1
1201533616.721154.1
1501911018.661461.2
1852337320.641818.6
2403087023.722473
Nominal cross-section (mm2)Min. number of wiresDiameter of stranded conductor (mm)Weight (kg/km)
Wire Ø 0.07 mm
0.081210.360.719
0.14360.51.24
0.25660.652.23
0.35900.753.08
0.51300.954.55
0.751951.16.91
12591.359.31
1.53951.6514.1
2.56502.2523.4
410502.937.8
615753.656.6

Table of current loads

Below you can select your appropriate cross-section as a function of the current load (determined at a room temperature of 35 °C and the maximum temperature of the conductor, viz. 70 °C).

Due to other factors usually playing a role as well, the values indicated below are to be seen as a non-binding recommendation. 

Nom. cross-section
(mm²)
Max. permitted current rating
(approx. A)
0.15
0.146
0.27
0.259
0.3510
0.512.5
0.7515
118
1.521
2.530
440
5.2544
650
870
1085
16120
Nom. cross-section
(mm²)
Max. permitted current rating
(approx. A)
25150
35195
50250
70300
95360
120420
150480
185570
240670
300780
400950
5001100
6251300
8001500
10001800

Packaging

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

Packaging information

“No pollutants” policy

All materials we use to make single wire are absolutely compliant with RoHS, thus corresponding to EG regulation 2011/65/EU. (See article “Cadmium – end of the line”).

In response to inquiries made, we can confirm that our products do not contain any minerals that originate from regions of conflict. They are in full accordance with the American Dodd-Frank-Act.

Contact

Other diameters and materials upon request may be found.

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