Materials & Components

Winding wire:
Enameled copper wire – low losses, good solderability, high reliability; standard for most applications

CCA wire
(Copper Clad Aluminum) – lighter weight and lower material costs; higher resistance than copper

Insulation / Varnish System
Polyester, polyurethane, or polyamideimide – depending on temperature class, dielectric strength, and chemical exposure

Coil formers
polyamide, PBT, or other temperature-resistant insulating materials; ceramics and high-performance plastics for special applications

Customized Design for Your Innovations

Every application has its own requirements. The following parameters are specifically designed to meet your specifications:

  • Inductance (number of turns, diameter, geometry)
  • Size and shape
  • Weight
  • Temperature resistance
  • Frequency response / quality factor
  • Mechanical stability
  • Connection Type (Pins, Wires, Open Ends)
  • Tolerances & Repeatability
  • EMC Properties & Stray Field Behavior

Areas of Application

WERAP air coils are used in demanding environments:

  1. Medical technology – implantable components, diagnostic devices, sensor coils
  2. Industrial electronics – control systems, actuators, measurement systems
  3. Control technology – position sensors, solenoid valves
  4. Renewable energy – Converters, filter coils, chokes
  5. Defense & Aviation – Rugged, quality-assured coils for safety-critical systems

Your Benefits with WERAP INDUCTIVES

Swiss precision, quality, and dimensional accuracy to the highest standards, tested in-house.

Full in-house production capabilities
From consulting during the design process through winding to impregnation, potting, assembly, and testing—all under one roof at WERAP.

Flexibly scalable 
Whether it’s a single prototype, a small production run, or large-scale industrial production, our modular processes and locations in Switzerland, Germany, and Central and Eastern Europe adapt to your project.

Extensive Material Expertise
Enameled wire, copper-clad wire, HF stranded wire, various core materials, and coatings—all from a single source.

Request for
Custom Work

Marcel Bürli will guide your projects from the initial inquiry through to delivery. With his in-depth expertise in winding technology and custom inductors, he will work with you to find the right solution—quickly, easily, and tailored to your needs. 

Let me know your technical requirements—I’ll design the right coil for your application.