Adopting advanced inverter technique and excellent imported power equipment, high working efficiency, small in size and light in weight Protection equipment are set internally to prevent over heat, over current, lack of voltage etc, to ensure safe operation Adopting contact or non-contact cutting and strong striking performance Soft magnetic ferrite materials are used in high frequency transformer, which is small wastage. high conversion rate, high efficiency and energy-saving Simple structure, excellent technics, durability, reliablity and easy maintenance Stable cutting current and smooth in cutting seam Adopting passive power factor correction, and high in power factor Protection equipment are set to prevent input power lack of phase, lack of voltage and over voltage and strong practicability