6
Chapter 1 Product description
1.1 Produce application
MIG series welding machine adopt special tapped transformer adjusting style. It is the
economical and practical mechanical products, it has wire-feed system, small volume, easy to
shift and simple operation, it applies to welding low-carbon steel, low-alloy steel and so on.
1.2 Model unit
Model
Item
WM 151-C
Rated input voltage
230
Frequency
60
Phase
single
Max. input current
20A
Max. output voltage
36VDC
Rated output current
30A 50A 75A 105A
Rated output voltage
15.5V 16.5V 17.7V 19.2V
Duty cycle
100% 60% 30% 15%
Insulation grade
H
Weight
26.2Kg
Dimension(L
×
W
×
H)
72cm
×
32cm
×
54cm
1.3 Voltage characteristic and current characteristic of welding power
The curve (as diagram1-1) means “V-A” external static characteristic of welding power,
gradient of cure named slope, normal means “drop off voltage per 100A”. The curve shows the
output voltage we can get in any preset output current because the “V-A” slope id fixed.
WIM 151-C external static characteristic
0
10
20
30
40
0
50
100
150
200
250
I
2
(A)
U
2
(V)
Diagram 1-1 External static characteristic
