Advanced Purity Scanner for XLPE & PP Pellets
Plastics used for the insulation of medium, high and extra high voltage cables must meet the highest standards of purity. The two most common materials are XLPE (cross-linkable polyethylene) and PP (polypropylene). Both materials have their specific advantages, but also special requirements that must be considered in the extrusion process. SIKORA’s Purity Scanner Advanced is an advanced inspection and sorting system that reliably ensures the material quality of both plastics.
Impurities in XLPE and PP: A Common Challenge – XLPE is a proven insulation material for medium and high voltage cables, manufactured by chemical cross-linking of polyethylene. It offers good electrical and physical properties, but requires long degassing times and is not recyclable. PP is a modern alternative with similar properties, but does not require cross-linking. This enables a more efficient, continuous production and also makes PP recyclable