Leading Cable Extrusion Manufacturer in the UK
At Custom Designed Cables, we provide custom cable extrusion services, also known as cable jacketing or cable sheathing, as an essential part of the cable manufacturing process. Extrusion protects a cable from mechanical damage and environmental hazards, and the material used is selected based on the performance the cable needs to deliver.
We use a vast range of materials for cable extrusion and jacketing, together with modern equipment, to provide high-quality results. The type of extrusion and material selected depends on your specific operational performance requirements, such as temperature range, flexibility, water, oil or chemical resistance and fire performance, which can vary depending on the construction and materials used.
Cable Extrusion Services
Cable extrusion is applied at numerous points in the cable design process, with each layer of extrusion or jacketing carrying out a vital function in the overall performance of the cable.
Our cable extrusion services include:
- Any cable extrusion requirement, from large to small production runs, with low MOQs
- A wide range of masterbatch colours in stock, with exact colour matching also available
- Extrusion diameters from 0 to 40mm overall
- A broad cable oversheathing material portfolio, including multiple grades of PP, PE, PVC, PUR/TPU, LSZH and XLPE
- Extrusion of existing cables to increase diameter or change material selection
What Cable Extrusion Involves
Wire insulation
Insulating a cable’s conductors ensures electrical current cannot deviate from its intended route, isolating conductors from each other and from outside influences. The material and thickness used determines the maximum operating voltage a cable can safely carry, and is selected based on the temperature range, flexibility and environment the cable will be exposed to.
Bedding layers
A bedding layer is a cost-effective filler used to increase a cable’s diameter and improve its overall shape, which is useful for non-standard cable designs. Bedding layers can also provide moisture protection and a mechanical barrier between inner and outer conductors, and are commonly added before an armoured (SWA) cable‘s armouring layer is applied.
Final cable extrusion
The final extrusion stage brings all of a cable’s components together into a compact unit, protecting it from external influences, damage and wear. Cable jackets can also be used for branding purposes, with a company’s logo or name printed on the outer surface, whether for aesthetic reasons or for health and safety identification.
Why choose Custom Designed Cables?
At Custom Designed Cables, we combine technical expertise with fast, reliable manufacturing to deliver high-quality cable extrusion services.
We offer:
- ISO 9001:2015 quality management
- UL & CSA approved options available on selected product ranges
- Fast turnaround times
- Access to a comprehensive materials library
- Free consultation and advice
Whether you need standard cable extrusion or a fully bespoke jacketing solution, our experienced team can help.
Frequently Asked Questions
What is cable extrusion?
Cable extrusion, also known as cable jacketing or cable sheathing, is the process of applying an outer layer to a cable to protect it from mechanical damage and environmental hazards.
Can existing cables be re-extruded?
Yes. We can extrude existing cables to increase their diameter or change the material used, without needing to manufacture an entirely new cable.
What materials are used in cable extrusion?
We hold a broad extrusion material portfolio, including multiple grades of PP, PE, PVC, PUR/TPU, LSZH and XLPE, selected according to the performance your application requires.
Get a quote for your cable extrusion
Looking for a custom cable extrusion service for your next project? Contact Custom Designed Cables today to discuss your requirements.
