AC/DC TIG 300D
Features:
IGBT inverter with PWM control – constant current, stable output.
Fast arc start – high efficiency, 100% success.
High-speed welding – bright, clean beads, good atomization.
Multiple modes: MMA, TIG, pulse TIG, and cold welding.
Simple mode for easy panel operation.
Two output waveforms: AC square wave and triangular wave.
Overheat, phase-loss & voltage protection – high reliability.
Remote control ready – foot pedal & remote box compatible.
Memory – stores up to 99 settings.
MMA features: striking current, arc force, VRD, and anti-stick.
Versatile – welds stainless steel, carbon steel, copper, titanium, aluminum alloys, and more.
Widely used in petrochemical, power construction, pipeline, and machinery industries.
| Parameters | AC/DC TIG 300D |
| Rated Input Voltage (V) | 3PH380 |
| Power Frequency(Hz) | 50/60 |
| Rated Input Current（A） | DC：20/AC:19/MMA：14.2 |
| Rated Input Power(KVA) | DC：13.2/AC:12.5/MMA：9.3 |
| No-load Voltage(V) | 72 |
| Pulse Frequency(Hz) / Cool welding interval time(S) | AC：0.2～10/DC:0.2～999/0.1～5 |
| Pulse Width(%) /Cold Welding time(ms) | 1 ～99 /1～800 |
| AC Frequency(Hz) | 20 ～120 |
| AC Clean width（% ） | -20 ～+20 |
| Welding current(A) | DC15～300/ AC30～300/ MMA15～245 |
| Up slope up time(S) | 0 ～10 |
| Down slope down time(S) | 0 ～10 |
| Gas Pre-flow time(S) | 0 ～ 0.5 |
| Gas Post-flow time(S) | 1 ～10 |
| Rated Duty Cycle(%)（40℃） | DC:30/AC：30 /MMA:60 |
| Protection class | IP21S |
| Dimensions(mm) | 604*250*571 |
| Weight(kg) | 33 |
