The Expandable Heaters are manufactured with a internal compacting system of all its components in order to increase their lifetime. The Nickel/Chrome 80/20
conductor wire is introduced into the cavities of a ceramic core which focuses the suitable separation in order to obtain a better isolation.
Fully coated with magnesium
oxide of high purity grain sized controlled to ensure the complete cartridge Expan filled. Later a compacting process and surface rectification until calibrated the
desired size.
Finally, a rigorous quality control that guarantees the best performance of the cartridge.