DBMZ Series Precision DC inverter spot welder Features ★ DC output, the welding current is pulsating DC (waviness and small); inverter frequency 4KHZ, energizing time control period is 0.25ms, discharge time can be arbitrarily controlled ★ LCD display and intuitive. easy to operate; real-time monitoring of current, voltage, power, set the parameters, the lower limit monitoring. ★ with current disorders, monitoring values ??overrun, the net pressure gauge, overheating fault diagnosis and alarm function; can greatly reduce product defect rate of welding. ★ three sections heating set with the current ramp slow down function, which can effectively solve the splash, and more to ensure the stability of the welding electrode can effectively extend the life of more than 50% energy saving.