Application: automobile & rail transit vehicle manufacturing industry and the manufacturing support of large parts welding

Adopt Digital PID closed-loop control, good control stability;
Control frequency 1~4KHz, fast dynamic response, high control accuracy;
Constant voltage, constant current, constant power three welding control modes;
The full solid DC link capacitor is used, and the service life is long;
The Hall current sensor is used to detect the DC output with high precision;
The transformer secondary current feedback realizes the full closed-loop control of the current;
Current, voltage, power and dynamic resistance data can be collected and output according to the control cycle, which is convenient for quality management and traceability of welding quality.

Model	SMFDN series
Rated capacity	70KVA	100KVA
Rated duty cycle	20%	50%
Rated input power	380V~440V 50Hz three-phase
Welding transformer power	500V 1000Hz 10V
Secondary no-load voltage	10V	9.8V
Continuous output current	7KA	10.7KA
Turns ratio	50:1	55:1
Air valve control voltage	24V
Electrode pressure (0.5Mpa)	30KN
Air supply pressure	0.5Mpa
Cooling water flow rate	16L/min