Mmaw (Stick) Welding - Weldtronic TM250C Operating Manual

3.2 MMAW (Stick/MMA) Welding

After connecting the welding leads as detailed you will need to switch the power switch on the
back panel to "ON"

Select MMA by switching to the MMA welding mode. There is voltage output at both output
terminals.

Set the amperage on the machine suitable for the electrode being used. Ensure you check that
you have the electrode polarity correct.
Please see below a guide to amperages required.
Electrode Diameter(mm)
2.0
2.5
3.2
AverageThickness of
Material (mm)
1.0-2.0
2.0-5.0
32
Welding Current(A)
40-60
60-95
95-130
Suggested Electrode
Diameter (mm)
2.5
3.2
Insert the cable plug with electrode holder into the
"+" socket on the front panel of the welding
machine, and tighten it clockwise.
Insert the cable plug of the work return lead into
the "-" socket on the front panel of the welding
machine, and tighten it clockwise
Electrode Diameter(mm)
4.0
5.0
6.0
AverageThickness of
Material (mm)
5.0-8.0
8.0 >
Welding Current(A)
130-180
180-220
220-260
Suggested Electrode
Diameter (mm)
4.0
5.0