Cylindrical Melting Induction Heating Coils

There is a large variety of melting coils, ranging in sizes and designs.  The frequency range is very wide from line frequency for large furnaces to radio frequency for melting of small parts, precious metals, etc.

Big furnaces usually have lamination shunts for parameter improvement, magnetic field shielding and as construction components, while small high and middle frequency furnaces usually have no concentrators or shunts.

Flux controllers may be effectively used in a vacuum or special atmosphere furnaces mainly for shielding purposes.  Coils for melting radioactive materials should be done in a protective atmosphere.  The image below shows a cylindrical coil with a Fluxtrol A shield.  This greatly improves efficiency and power factor and allows for the use of a larger furnace in the same chamber.

 For more information on Induction Heating, visit the Center for Induction Technology at www.fluxtrol.com.