Induction preheating the cable and wire industry
EFD Induction supplies numerous preheating solutions for the cable and wire industry. Heating before the extruder is the most common induction application in a cable production line. Using the preheater will decrease the cross-linking time and enable a faster line speed.
Preheating with induction instead of with a conventional method directly transfers the heat to the wire or the cable core. The material is heated to the right temperature in a very short time (exactly how short depends on the line speed and the coil length).
Induction also means that the actual hardening process begins at the core. The result is better insulation with lower porosity.