The photo shows the heating station of an automobile engine camshaft
pump cam induction heating machine.

To austemper the ductile iron pump cam, the cam is heated to over 1,100℃
and quenched in the adjacent salt bath.

To effectively heat the triangular shaped target area,
the rotating workpiece is heated with low frequency using
a multi-turn coil until a certain depth is reached.

In the photo, the pump cam is heated to a depth close to the shaft axle.

After thorough calibration, we were able to meet the severe heating
specifications of minimum 1,100℃ and range ±20℃ for two differently
shaped target areas.