Gen-Welder Model

GFW20-300

GFW22-350

GFW37-400

GFW40-500

Rated Frequency(Hz)

50

50

50

50

Rated Power(KW)

20

22

37

40

Rated Voltage(V)

400

400

400

400

Rated Current(A)

36.1

39.7

66.8

72.2

Phase Number

Three phase,four wire Y   connection

Power factor(cos)

0.9(lag)

0.9(lag)

0.9(lag)

0.9(lag)

Welding voltage at zero load(DC)V

70

71

72

76

Rated welding current DC(A)

300

350

400

500

Welding current Input(A)

19

31

27.3

38

Welding Duty cycle

60%

60%

60%

60%

Welding Current adjustment range   (DC)A

30-300

30-350

40-400

40-500

Rod diameter(mm)

2.0-4.0

2.0-5.0

2.0-6.0

2.0-7.0

Rated speed

1500

1500

1500

1500

Excitation mode

Brushless self-excitation constant voltage(AVR)

Rectifying mode

IGBT+three-phase rectitying   bridge(PWM)

Insulation grade

F

F

F

F

Pole number

4

4

4

4

Engine mode

Weichai K495

Weichai K4100

Weichai K4100ZD

Weichai K4100ZD

Engine type

4-cylinder,in-lined,four-strock,water-cooled,direct-injection

Displacement(ml)

3610

3610

3610

3610

Borexstorke(mm)

100x115

100x115

100x115

100x115

Compression ratio

17:1

17:1

17:1

17:1

Rated Power(kw)

42

42

42

42

Fuel type

0#(summer),-10#(winter)-35#(chill-cooled)diesel light

Lube oil brand

L-ECD grade15W30 of 15WD/40

Fuel Consumption(g/kw.h)

232

232

251

228

Fuel tank capacity(L)

100

100

100

100

Contunious running time(hr)

10

10

10

10

Overall dimension(LxWxH)

2000*900*1300

2100*1000*1300

2100*1100*1300

2200*1100*1300

Dry weight(kg)

820

1100

1500

1560

Starting system

Electric starter

Electric starter

Electric starter

Electric starter

Noice level(at rated load)dB(A)/7m

70

70

70

70

Structure type

Silent

Silent

Silent

Silent