... loop feedback system 3.rigorous protecions 1)Medium Frequency Induction Furnace for melting 2)Full digital control system with high accuracy ... 3) Melting steel, iron,stainless steel,copper,aluminium 4) ... capacity 5) Constant power output, speedy melting, good electricity saving efficiency. Furnace ModelRated CapacityRated PowerMF FrequencyPower Input VoltageMF ...