There are 2 important parameters of Induction Heating Machine:one is the ouput power, anotheris the ouput vibrated frequency. 
    The higher the frequency, the thinner the heating penetration. So it is important to select the frequency of the machine according to the heating desire to achieve best heating effect.
    The output power decide the heating speed, so power is selected according to the weight of the parts and the heating temperature and the heating speed desired.