Maximum flexibility has been the basis for our business activities from the very beginnings of our company. Over the years, any possible type of finishing, conditioning and packaging of continuous materials has been processed in our plants. Whereas the coil, i.e. the pure wire or strip bundle without an additional carrier was most prominent in the 1950s, spools from a diverse range of materials and in a variety of shapes are most important today.
The most commonly used materials are plastics. We mainly deliver spools that are in line with DIN EN 60264 specifications. Accordingly, the first number describes the diameter of the spool shoulder in mm. The second value represents the width of the spool. In individual cases, indication of the borehole diameter has proved to be advisable. An example for a spool description in line with these principles would be K 500/250/127 (500mm spool diameter, 250mm wide with a borehole diameter of 127mm).
The following chart contains customary maximum weights for copper materials per spool:
| Plastic spools | ||
| Designation | Dimensional range | Maximum weight |
| K 125/16 | 0,100-1,000 mm | 3 kg |
| K 160/22 | 0,100-1,500 mm | 8 kg |
| K 200/22 | 0,200-1,500 mm | 12 kg |
| K 250/22 | 0,300-2,500 mm | 20 kg |
| K 355/36 | 0,400-3,000 mm | 45 kg |
| K 500/250/127 | 0,600-4,000 mm | 90 kg |
| K 500/350/127 | 0,600-4,000 mm | 150 kg |
Very rigid wires, such as bronze and steel wires, should preferably be wound on bigger spools to avoid complicating any later adjustment process.
Plastic spools are mostly included in our reuse/recycle system. You can send the spools back to us and will be credited the price charged for the spools. We thus prevent unnecessary waste production and promote environmental protection.
For larger amounts, we mainly use metallic steel or aluminium spools used in wire drawing, sometimes also known as annealing spools. Of course, we stay true to our roots and still deliver material packaged as coils.
