This equipment widely apply for steel pipe seam annealing, fusion, heat penetration, quenching, brazing, siphon, sintering etc. KGPS series thyristor (SCR ... achieves the best regulation on rectifying and inverting.This equipment widely apply for steel pipe seam annealing, fusion, ... .Power grade: 50 kW1500kWFrequency range: 500Hz~8kHz KGPS Series Thyristor Medium Frequency Induction Heating Equipment