HOW TO SELECT THE INDUCTION HEATING EQUIPMENT?

Two key parameters of induction heating machine, one is output power, another is frequency.

The output power determines the speed at which a workpiece can be heated. the power selection according to the workpiece’s weight, heating temperature and required heating speed.

The frequency, along with the electrical resistivity of the workpiece and relative magnetic permeability, determines the skin depth of the eddy currents induced into the workpiece. In surface heating, the power also plays an important role in skin depth. The higher the frequency, the shallower the skin depth; the lower the frequency, the deeper the penetration.

Therefore, higher frequency are more effective for heating smaller parts or parts that require shallow heat penetration, lower frequency are more effective for larger parts with deeper heat penetration requirements.