Copper coils

Reliable and durable conductivity

At RPK Group, we are specialized in designing and manufacturing the highest quality products for various key industries.

At the RPK Group we have been supplying copper coils to key clients in the electric, HVAC and domotic sectors in general both for industry and households for almost 50 years. Copper is ideal for plumbing, heating, ventilation and air conditioning due to its better behavior than other metals, being a durable, reliable and economical material.  RPK Group is equipped with the technology to produce high-quality copper coils and wire forms with stripped ends.

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Copper coils

Advantages and benefits of copper coils

  • High conductivity, efficient current flow with low thermal resistance for electrical and HVAC use
  • Durable and cost-effective. Copper's stability delivers long service life at a competitive cost
  • Multiple coil formats: multilayer, square wire, and wire forms with stripped ends to spec

Measures

  • Product range starts at 0.20 mm. (0.08 in)
  • Other materials according to your special requirements.

Materials

The choice of the right material, surface treatment and coating are critical for the final quality and safety of the product. From stainless steels to the most specific materials bought in from the best suppliers. 

  • Copper coil

Industries / Applications

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Frequently Asked Questions

What types of copper coils does RPK Group manufacture?

RPK Group manufactures precision wound copper coils for spring and contact applications, as well as copper bus bar coil forms for power distribution. These include coil-formed copper conductors for motor and actuator assemblies and precision coil-wound copper elements for high-conductivity contact systems. Contact our engineering team to discuss your specific coil geometry and electrical or mechanical requirements.

What applications use custom copper coils in automotive and e-mobility?

Custom copper coils are used in alternator wire forms, electric motor stator windings, vehicle charging cable assemblies, and battery module interconnect systems. The trend toward higher-voltage EV architectures increases demand for precision-wound copper components with tight dimensional and conductivity specifications.

What copper alloys do you work with?

RPK Group works with electrolytic tough pitch (ETP) copper for general conductivity applications, oxygen-free copper (OFC) for high-purity requirements, and copper beryllium (CuBe) where a combination of spring function and conductivity is required. Surface finishes include tin, silver, and nickel plating.

Can copper coils be used in medical devices?

Precision-wound copper coils are used in MRI coils, electrosurgical instruments, implant charging systems (wireless power transfer coils), and laboratory analytical instruments. These applications require clean materials, tight dimensional tolerances, and specific insulation systems. Contact our team for medical-grade copper coil capabilities.

Get the most out of our expertise

Our engineers work alongside our customers to find the best solution for them, applying scientific methods and knowledge accumulated over almost 50 years.

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Do you need help for your next project?

Contact our engineering and sales teams. We will help you find the best solution for your applications.

+34 945 25 77 00

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