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1 Applicable to Petro-chemistry, Electric power, Construction, etc., 2. ZX7-ST/STG series are eitherDC TIG OR MMA - details see: https://www.machineto.com/zx7-stg-st-s-series-igbt-inverter-dc-mma-tig-welder-electrinic-welding-machine-10133981

ZX7(STG/ST/S) Series IGBT inverter DC MMA/TIG Welder

Functional Description:

1. Professional inverter DC SMAW Welder, mixed functions of SMAW, TIG, Gouge Arc and etc., suitable to difficult operation such as “bottom welding by TIG and welding by SMAW”.

2. Preset welding current before operation and get the preset value when working.

3. Working cable can be extended to 100 meters with automatic compensation function.

4. Superior automatic electricity distribution net fluctuation compensation----The output still can work efficiently even with input voltage fluctuation within 15%, especially suitable to use joint with generator in the open.

5. Suitable for acid, casting, low-argon, heat-resistance, fibrin, stainless steel electrode etc.

6. Using advanced IGBT-20KHz inverter technology. High reliability, high efficiency with low consumption, light weight and small size. ZX7-400ST

7. Applicable to Petro-chemistry, Electric power, Construction, Maintenance, Hardware Industry, etc.

8. ZX7-ST/STG series are either DC TIG or MMA.

Technical specifications:

Model Item	ZX7-315 (S,ST,STG)	ZX7-400 (S,ST,STG)	ZX7-500 (S,ST,STG)	ZX7-630 (S,ST,STG)
Rated Input Voltage ( V )	AC3~380	AC3~380	AC 3~380	AC3~380
Rated Input Capacity (KW )	14	18.5	25.2	35
Rated Input Current (A )	21	28	38	52
Rated No load Voltage ( V )	80	80	80	80
OutputCurrent Range(A)	20-315	20-400	20-500	20-630
Rated Duty Cycle (%)	60	60	60	60
Efficiency(%)	83~88	83~88	83~88	83~88
Power Factor	0.93	0.93	0.93	0.93
Insulation Class	F	F	F	F
ZX7(STG/ST/S)Weight (kg)	41/39	43/41	54/51	67/63
Dimension(W*D*H mm)	570*303*590	570*303*590	630*323*590	630*323*590