CNC induction hardening equipment manufacturers ring chain induction hardening, tempering IGBT power system using DSP digital control, control of high precision, stable circuit operation. Resonant circuit as "a series resonant" accommodate multiple heating process. Power factor up to 0.95, about 50% power saving than the tube, about 20% energy saving than the SCR frequency, low running costs, low failure rate. IGBT power, energy-saving ring chain induction hardening, tempering equipment in Hunan Zhuzhou Industrial Heating Co., Ltd. | CNC induction hardening equipment manufacturers