03/08/2022 – E-Xhead presents new patented product
“Ultra-Mix” one-step process compounding unit
Traditional XLPE cables are produced with ready-made compounds from various suppliers. These compounds have predefined recipes of base LDPE, Silane or Antioxidant, and Peroxide. “Ultra-Mix” has been developed, for combining separate compounds online during extrusion.
“Ultra-Mix” has been developed for combining separate compounds online during extrusion. © E-Xhead
Online compounding offers improvements in several aspects. There is a wide range of suppliers offering base LDPE grades for cable insulation without silane or peroxide and antioxidants. Customers have a wide choice. Traditional XLPE compounds are limited to using chemicals that are solid at room temperatures, otherwise, the compound would suffer from chemical sweat out. The shelf life makes the storage of premix compounds a concern.
The use of online dosing removes some of these restrictions and gives the cable manufacturer a wider selection of silane or peroxide and antioxidants. Online dosing offers a significantly longer shelf-life. Using alternative peroxides can even result in increased extruder outputs and longer production runs.
The system is for both silane or peroxide and antioxidant dosing and consists of one to seven feeders with gravimetric measurement for accurate dosing. When different solid compounds are ready as a batch, precision injection of silane or peroxide and antioxidant is effectuated. While the liquid and solid are being mixed, the next batch is being prepared.
E-Xhead Extrusion SA
Tel.: +41 21 8621316
