Find high quality power frequency ac spot welder with competitive price here. Please rest assured to buy power frequency ac spot welder with ENC Electrical Technology Co., Ltd

Comparison in the inverter spot welder and power frequency AC spot welder
 inverter spot welder power frequency AC spot welder
Current characteristics 1, Pulse DC current. 
2, Welding cycle min: 0.25 ms(4kHz), high precision. 
3, Constant current output, detect and feedback in every cycle. 
4, Avoid the power fluctuations. 
5, Accurate and Digitizing control.