1、Advanced and mature technology through five-year inspection and multiple improvement; 
2、Setting of five groups of working parameters and convenient operation;
3、Free modification of stored parameters; 
4、Manual adjustment;
5、Button touching operation.

1、MM main transformer and double service life;
2、Modular control system, a few contacts and high reliability; 
3、PS super control line with longer service life than that of mainline;
4、Silver-plated power connector and guarantee of reliable connection.

1、Entire nylon framework of the main transformer;
2、DMD interlayer insulation and resistance to voltage of 4,000V;
3、Waterproof junction box.

1、MM main transformer, low consumption and low heat;
2、Larger diameter of the output cable;
3、Reinforced nylon gun shell and good heat resistance.

1、 Lower no-load voltage to avoid generating electric arc;
2、The main transformer and the high power to ensure welding strength; 
3、Small impulse current and milder work.

Single-phase voltage of 220V and working range of 170-240V;
Two-phase-voltage of 380V and working range of 300-420V.
1、Five-step adjustable power and wider adjustment range;
2、Stable-voltage power supply of control system;
3、Improvement on AC contactor coil voltage and guarantee of attraction at low voltage.

1、Difficult breakage of slide bar subjected to heat treatment; 
2、Capacity of a welding pulling needle of welding and pulling for more than 1,000 times;
3、Large pull of manganese steel pull hook without breakage;
4、Pure copper earth plate and locking pliers for clamping to prolong the service life by 10 times than the spring chuck.
5、 Conical connection of the welding gun and the welding head to prolong the service life by 10 times than the bolt connection.

1、Separate design of main machine and frame;
2、Integrated top storage box; 
3、Modular control system; 
4、Separate mainline and ground cable;
5、Conical connection of the welding gun and the accessories, and quick replacement.