Self-Supported Coil Windings
US Cotronics manufactures a complete range of self-supported coil products customizable for your application. Sometimes referred to as air-core coils, these compact self-supported coil windings are ideal for irregular / complex product designs, as well as bobbinless applications in which space is a limiting factor.
Custom Self-Supported Coil Products and Air-Core Coils
Bobbinless Coil Windings
Magnetic Lock Coils
HIGH-QUALITY SELF-SUPPORTED COIL WINDING SERVICES – ISO 9001:2015 CERTIFIED
US Cotronics is an ISO 9001:2015-certified contract manufacturer offering premium self-supported coil windings, US Cotronics strives to deliver absolute precision and product consistency. Our responsive, hands-on quality assurance team utilizes APQP methodology throughout our production processes. Our robust quality control process ensures that every custom coil, winding and assembly is produced consistently, in spec and on time.
What Are Air-Core Coils? Advantages, Disadvantages, and Applications
Self-supported coil windings – also known as air coils or air-core coils – are engineered such that no magnetic core material is required. The lack of a magnetic core material creates two unique properties:
- The downside of air-core coils tends to be a low inductance rating combined with high magnetic leakage flux due to the coil’s hollow core.
- The advantage of air coils is a linear magnetization characteristic. As a result, self-supporting coils tend to not exhibit magnetic saturation limits when compared to similar-performing cored-coil products.
Self-supporting coils are generally wound with a special adhesive-coated wire. This helps prevent short circuits from occurring. During manufacturing, the adhesive layer is liquified, which essentially bakes the coil into shape for a more reliable product. To achieve mechanical stability, the windings are then fixed on a non-magnetic core material. Depending on the application, the core material used may be plastic, composite, glass, ceramic, or various other non-magnetic materials.
Custom Self-Supported Coils and Electro-Mechanical Components Manufactured in the U.S.A.
Based out of Fairbury, Illinois, US Cotronics is a premium American manufacturer offering superior quality electric coil products since 1985. We strive to deliver products on time with unbeatable quality, consistency, and customer service through all of our electro-mechanical manufacturing services.