Application-
Axles, gears, chain wheel, machine attachment, metal wirerod annealing, hydraulical
Fitting, automobile attachment, knives, scissorspliers, stainless pan annealing

Frequency-
Principle: Less hardening depth workpiece requested, high the frequency is. If the depth is below 1mm, ultrahigh frequency 100-500KHZ. If the depth is between 1mm and 2.5mm, high frequency 20-100KHZ.

Power-
Considering about workpiece shape, hardening ways, hardening hardness, depth and materials, more specification contact us.