Body & Air Coils
Body & Air Coils
  • Material:
    Enameled copper wire, copper-clad wire, alloy, or HF stranded wire Ultra-fine wire with a diameter of 20 µm or greater.
  • Technique:
    Winded on a bobbin, as a bakelite-coated coil, glued, or encapsulated, in a housing with pins or with exposed contacts.
  • Shapes:
    Classic cylindrical, rectangular, or custom-designed for your specific function or installation space.
  • Special features:
    High-temperature coils, coils with increased mechanical strength, or superconducting coils.
  • Advantages:
    Over 50 years of experience, supported by expertise across various industries, global distribution, Swiss values.
Transformers
Transformers
  • Print transformers
    virtually no electromagnetic interference (ideal for sensitive audio or measurement applications)
  • Toroidal transformers
    require specialized winding machines and make manufacturing more complex (especially for custom requirements)
Varnish-coated coils
Varnish-coated coils
  • Material:
    Enameled copper wire and CCA (copper-clad aluminum) wire for weight- or cost-optimized applications.
  • Technology:
    Thermally or solvent-activated baking varnish process for dimensionally stable, self-supporting windings without a bobbin.
  • Shapes:
    Round, square, or custom-shaped—mechanically adapted to customer-specific installation spaces and special geometries.
  • Special Features:
    Can be designed for strength, temperature resistance, or flexibility of the baking varnish bond, depending on the activation process.
  • Advantage:
    A highly automated winding process enables cost-effective mass production with high reproducibility.

Inductance solutions for complex applications and high-mix production

WERAP Inductives is your center of expertise for custom-made coils, transformers, chokes, and high-voltage components. Our manufacturing process combines semi-automatic and fully automatic winding technologies with a wide variety of materials, geometries, and core shapes—including baking varnish, dip coatings, and specialty coatings.

Whether it’s a prototype or series production, a glass or toroidal core, inductive sensors or high-voltage transformers: We support you throughout the design process, winding, assembly, and testing with the highest precision. Thanks to our modular processes and deep integration, we offer you quality, variety, and speed—perfectly tailored to your project.


  • Custom Coils & Transformers
  • Semi- & fully automatic winding
  • Flexible series & custom solutions

Contact us!

Whether it’s an air-core coil, a high-voltage transformer, or a complex choke—we combine state-of-the-art winding technology with the highest level of process reliability. You can count on certified quality “Made by Werap.”