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This product range contains several solutions that are suitable for your motor.
We can help you choose the best component for your requirements. Contact us for a free consultation.
Miotti for Huber&Suhner
Miotti has been a partner of Huber+Suhner for 40 years and today it is its Distribution HUB for the Coil Winding sector.
We offer the quality of RADOX® cables, synonymous with high performance for applications in critical conditions.
Plus:
• A large stock available and ready for delivery
• Various sections available
• Large selection of colours
• Technical support for special applications
• Standard (RADOX® 155, UL3289, UL3266 and UL3680) and special versions
The ease with which they can be processed, their mechanical strength and their incredible ability to withstand temperature spikes, which are well above their temperature class (up to 250°C in the case of RADOX® 155 and RADOX® UL 3289), ranks RADOX® cables among the best-sellers in the electrical winding industry.
They also have a small outside diameter, high soldering resistance, and a high current capacity.
The most commonly used types are RADOX® 155, RADOX® UL 3266, RADOX® UL 3289 and RADOX® UL 3680.
In certification body specifications (e.g. UL, CSA etc.) they are indicated as XLPE or XLPO cables in order to classify them according to the chemical composition of the polyethylene and their cross-linking characteristics.
Discover the range:
Single core power and signal cables for coil-winding applications
Single core RADOX® cables are a class of flexible cables that offer excellent resistance to heat, high temperature-pressure and ageing. Electron beam cross-linked insulation provides high mechanical strength, will not melt and is resistant to most products, such as insulating varnishes and impregnating resins. Short exposure to heat of up to +280°C does not deteriorate the cable insulation.
RADOX® cables have electron beam cross-linked insulation
This complex process ensures: – excellent temperature resistance – the insulation does not melt – good mechanical and insulating properties even up to 250°C. – behaviour similar to that of heat shrink tubing. Small deformations due to machining can be removed simply applying heat.
How does the irradiation cross-linking process work?
From vulcanization to cross-linking
The cross-linking of synthetic materials is similar to the vulcanization of rubber. In its natural state, rubber is thermoplastic, but Good Year discovered that by adding sulphur and exposing it to a temperature of 150°C for a few minutes made it hard and elastic.
The same result can also be obtained in synthetic materials, through cross-linking.
This can be achieved:
- by using catalysts, temperature and pressure
- by electron beam irradiation (beta or gamma ray)
Electron beam cross-linking
Thermoplastic materials are composed of long, thin, randomly arranged molecules.
The strength of these materials depends on:
- The distance between molecules
- The bonds between the molecular chains
- The crystal structure of the molecules
- The force of attraction between the molecules (in the case of polar materials)
- In a non-cross linked thermoplastic material, the polymer chains resemble a plate of spaghetti: the adhesion between one strand and another is the only force that holds them together.
As soon as the material is heated, this weak bond is broken and the molecules are free to slide past each other, causing the material to melt (similar to adding oil to a plate of spaghetti).
When the material cools, the bonds re-form, producing a new structure.
The irradiation process can be used to modify the crystal structure of the polymer chains and transform the thermoplastic material into an elastomeric material. In addition, the material will no longer melt.
The images show the cross-linking process for polyethylene: two adjacent molecular chains are bombarded with electrons, which break some of the C-H bonds, releasing hydrogen atoms.
The free carbon atoms bind with double bonds to other carbon atoms of adjacent chains, building a very strong and stable cross-linked structure.
Treccia semiconcentrica
Semi-concentric braid
RADOX® cables have a semi-concentric braid.
This solution offers several advantages compared to the more economical solutions chosen by our competitors: 1. wires are easier to strip 2. better insulation (breakdown voltage) 3. constant shape of outer layer 4. easy setup for wire stripping machines
REQUEST
ADVICE
This product range contains several solutions that are suitable for your motor.
We can help you choose the best component for your requirements. Contact us for a free consultation.