{"id":5863,"date":"2026-06-16T17:00:18","date_gmt":"2026-06-16T15:00:18","guid":{"rendered":"https:\/\/www.miottisrl.com\/avviene-processo-reticolazione-irradiazione-nei-materiali-sintetici\/"},"modified":"2026-06-16T17:29:35","modified_gmt":"2026-06-16T15:29:35","slug":"insulation-technology-radox-cable","status":"publish","type":"post","link":"https:\/\/www.miottisrl.com\/en\/insulation-technology-radox-cable\/","title":{"rendered":"High-temperature and heat-resistant cables: RADOX\u24c7 insulation technology"},"content":{"rendered":"

Subjected to constant thermal and mechanical stresses, the components of industrial machines and electric motors require exceptional insulation. When designing or wiring a stator, the choice of electric motor cables<\/strong> and their insulating materials<\/strong> determines the longevity and reliability of the entire system.<\/p>\n

In this technical overview, we analyze how the radiation cross-linking process<\/strong> transforms the structure of polymers, ensuring exceptional thermal performance for RADOX\u24c7 cables and eliminating production line scrap.<\/p>\n

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The Limitations of Standard Materials in Electrical Cable Insulation<\/h2>\n

Traditional thermoplastic materials, such as PVC or standard rubber, are composed of long, thin molecules arranged in a random order. The adhesion between the various molecules is the only force holding the structure together.<\/p>\n

As soon as the material is heated, this weak adhesive bond breaks down. The molecules are free to slide over one another, causing the insulation to melt. When the material cools, the bonds reform and establish a new geometric shape. This instability makes standard cables unsuitable for use as heat-resistant cables<\/strong> in harsh industrial environments or under heavy overloads.<\/p>\n

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What Is a Radiation-Crosslinked Cable and How Is It Made?<\/h2>\n

This limitation is overcome through the crosslinking<\/strong> process, a treatment similar to the vulcanization of rubber applied to synthetic polymers<\/strong>. Crosslinking can be achieved chemically or, in a much more precise and clean manner, through irradiation with electron beams (beta or gamma rays).<\/p>\n

Today, the RADOX\u24c7 technology<\/strong> developed by Huber+Suhner<\/strong> utilizes precisely this irradiation process with high-energy electron accelerators. During this treatment, the cable insulation is bombarded by a stream of electrons that breaks certain hydrogen-carbon bonds, releasing hydrogen atoms.<\/p>\n

To achieve a new energy equilibrium, the carbon atoms that are temporarily unpaired immediately form new chemical bonds with the carbon atoms of adjacent molecular chains. The result is the transformation of the polymer from a thermoplastic (meltable) to an elastomeric (non-meltable) material. This creates an extremely robust and stable three-dimensional network structure: cross-linked polyethylene<\/strong>.<\/p>\n

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Why RADOX\u24c7 heat-resistant cables optimize production<\/h2>\n

The modification of the molecular structure<\/strong> achieved through irradiation<\/strong> offers a range of application benefits to manufacturers of electrical machinery and resolves the most common problems encountered in assembly and wiring departments:<\/p>\n