Stiefel Induction Heaters: Energy-Efficient Solutions Since 2013

An ultrasonic frequency induction heater operates within a very high frequency range, typically from 30 kHz up to several hundred kHz. This high frequency creates a pronounced "skin effect," concentrating the thermal energy extremely close to the surface of the workpiece. This characteristic makes ultrasonic frequency induction heaters the ideal solution for applications requiring shallow case hardening, precise surface hardening, or the heating of very small, thin parts. In surface hardening, also known as case hardening, a thin outer layer of a component (such as a gear tooth or a shaft journal) is rapidly heated and quenched to create a hard, wear-resistant surface while maintaining a tough, ductile core. This process significantly enhances the component's fatigue life and resistance to abrasion. Furthermore, this technology is exceptionally effective for heating fine wires for annealing, brazing tiny electronic components, and performing localized heat treatment on complex geometries without affecting adjacent areas. The Stiefel Combustion approach to ultrasonic frequency heating emphasizes stability and control, ensuring that even the most delicate thermal processes are executed with maximum repeatability. Our systems are built with robust power supplies and precision-matching networks to deliver reliable performance in demanding industrial environments. If your operations involve precision surface engineering or the processing of miniature components, we invite you to contact us to discuss how our ultrasonic frequency induction heating expertise can benefit your production process.