Gen-Welder Model	GFS-ZX7-300	GFS-ZX7-350	GFS-ZX7-400	GFS-ZX7-500
Rated Power(kw)	20	22	24	36
Engine Model	Cummins 4B3.9-G1	Cummins 4B3.9-G1	Cummins 4B3.9-G1	Cummins 4BT3.9-G1
Engine Type	Vertical,in-line,water-cooled,4-stroke	Vertical,in-line,water-cooled,4-stroke	Vertical,in-line,water-cooled,4-stroke	Vertical,in-line,water-cooled,4-stroke
Rated Output(Kw)	20	22	24	24
Max.Output(kw)	22	24	26	36
Governing method	Mechanical/Electronic	Mechanical/Electronic	Mechanical/Electronic	Mechanical/Electronic
Induction system	Naturally aspirated	Naturally aspirated	Naturally aspirated	Naturally aspirated
Oil Capacity(L)	8.2	8.2	8.2	8.5
Displacement(L)	2.78	2.78	2.78	2.99
Cylinder Numbers	2.8	2.8	2.8	3
Fuel consumption(g/kw-h)	195	195	195	205
Cooling Starting Method	Closed water cooled/Electric Start	Closed water cooled/Electric Start	Closed water cooled/Electric Start	Closed water cooled/Electric Start
Generator Model	STF-20 Brushless	STF-22 Brushless	STF-24 Brushless	STF-30 Brushless
Rated Output(Kw)	20	22	24	30
Rated Capacity(kva)	25	28	30	36
Rated Voltage(V)	380,400,415/200,208,220	380,400,415/200,208,220	380,400,415/200,208,220	380,400,415/200,208,220
Frequency(Hz)	50/60	50/60	50/60	50/60
Power Factor cos	0.8lagging	0.8lagging	0.8lagging	0.8lagging
Phase/Connection	3-phase 4-wire Y type connection	3-phase 4-wire Y type connection	3-phase 4-wire Y type connection	3-phase 4-wire Y type connection
Excitation	Brushless Excitation	Brushless Excitation	Brushless Excitation	Brushless Excitation
Voltage Regulation	A.V.R	A.V.R	A.V.R	A.V.R
Welder Model	ZX7-300	ZX7-350	ZX7-400	ZX7-500
Output Current(A)	40-300	40-350	40-400	40-500
Net Weight(kg)	520	520	520	520
Packing size: L×W×H(mm)	1600×750×1250	1600×750×1250	1700×750×1250	1900×750×1250