With SDF® generators, two different frequencies act simultaneously on the workpiece to be heated, causing the entire component to be induction hardened with absolutely uniform depth and temperature.
New precision – maximum flexibility
The outstanding advantages of this patented method are especially evident when hardening complex components such as gear wheels. While using a SDF ® generator, medium frequencies can penetrate more deeply into the gear wheel, primarily heating the tooth base, and at the same time high frequencies heat the tooth tip. The entire component is heated with absolutely uniform depth and temperature.
To achieve this eldec’s SDF® generators have one high frequency converter and one medium frequency converter sharing a common power output, with high frequency oscillation superimposed on the basic medium frequency oscillation during the SDF process.
In addition, the conventional use of high frequency and medium frequency energy is possible as well, giving the user a vey versatile generator with high power density
Simultaneous heating with medium and high frequencies
Accurate surface hardening on complex contours
Versatile use as pure MF or HF generator
Combination of pulse width modulation and pulse train control
High speed PLC with eldec control print: short clock frequencies for extremely rapid control
Extremely high energy density for short process times
Can be integrated into automated lines
Low energy consumption per workpiece
Little to no surface oxidation
Minimization of component warpage