Extrusion International 1-2025

24 Extrusion International 1/2025 INDUSTRY NEWS Ideal Sorting Solution for XLPE Pellets Since plastics are so diverse due to their properties and applica- tions and each market has its own requirements, the sorting require- ments are also very individual. The requirements in the XLPE market differ signi cantly from standard plastics. It is not just a matter of identifying different materials, cross-contamination or coarse im- purities. In addition to the targeted detec- tion and sorting out of the small- est black specks and yellowing, the seamless detection and sorting out of the smallest metal particles is also indispensable. Furthermore, it is essential that the material trans- port and the type of sorting itself do not introduce any additional ex- ternal contamination into the ma- terial ow. Another criterion is the space in the production environment. The material ow of XLPE runs by grav - ity directly from the dust removal on one oor to the sorting on the next oor. Space is limited and a cost factor here. Accordingly, the sorting of optical and metallic im- purities should be carried out di- rectly on one oor. Furthermore, the sorting should be carried out in a way that as little as possible of the good, i.e. clean material, is sorted out. Exactly these requirements were brought to the SIKORA development team by XLPE experts from the industry more than ten years ago. Mean- while, the fourth generation of the PURITY SCANNER ADVANCED is used by numerous customers worldwide. Experts in the XLPE market are aware of the advantages of the PURITY SCANNER ADVANCED with regard to the precise sorting of the smallest impurities in the range of 25 µm as well as the sorting of metal particles of 50 µm in size in a single material pass. Likewise, the numer- ous users of the PURITY SCANNER ADVANCED know that only a ma- terial transport system with a stain- less-steel channel will not bring any impurities with it and that a target- ed blowing out with cleaned com- pressed air using an intelligent ap- proach will cause the least possible ejection of clean material. This further optimizes produc- tion processes, ensures the quality of the XLPE material and, thanks to reduced ejection, contributes to cost-ef cient and sustainable pro - duction. SIKORA AG www.sikora.net The purity requirements for XLPE pellets are particularly high The PURITY SCANNER ADVANCED reliably detects and sorts the smallest impurities in the raw material