质量可靠，性能稳定，具有电压波动自动补偿功能；负载持续率高，可长期施焊，具有过载保护功能；焊弧平稳，焊缝成形好，熔池深，飞溅小，具有推力补偿功能；带有电缆加长设置，适合远距离焊接；500A以上电流可碳弧气刨，一机多用。 Product Characteristic:·High quality and stable characteristic , it can balance automatic when voltage is waving;·High duty cycle , with protection of over-voltage , be able to work cotinuously;·Stable arc ,beautiful welding seam,deep bath ,little splash and adjustable arc force;·Be able to equip with remove controll freely in order of distance welding;·Be able to dig by compressed air and arc of carbon stick above 500Amps.