400A AC DC Pulse TIG Welder with LCD Display Spot Cold TIG Welding Machine Description:
The 400A AC DC pulse TIG welder with LCD is designed for high-precision welding of aluminum, stainless steel, and carbon steel. This AC DC TIG welding machine supports pulse, spot, and cold TIG welding functions, allowing precise heat control and producing clean, high-quality welds, especially for thin materials and detailed work.
Equipped with an advanced LCD control panel, the machine enables easy parameter setting and real-time monitoring. The pulse TIG welder provides stable arc performance and strong output, making it suitable for industrial fabrication, stainless steel processing, aluminum welding, and heavy-duty workshop applications.
This heavy-duty industrial welding machine adopts advanced IGBT inverter technology, supporting AC/DC TIG, Pulse TIG, Spot TIG, Cold TIG, and MMA welding all-in-one. With a maximum output current of 400A, it provides a stable arc, strong penetration, and reliable performance for both heavy industrial welding and ultra-thin sheet precision work.
Equipped with a high-definition LCD digital display, all welding parameters, including current, pulse frequency, AC balance, waveform, pre-flow/post-flow, are clearly visible and precisely adjustable. The professional Spot Cold TIG function effectively minimizes heat input, preventing workpiece deformation, discoloration, and burn-through—perfect for thin stainless steel, aluminum, copper, alloy, mold repair, and high-quality decorative welding.
Accessories Includes
Tig torch 4m Earth clamp cable with 500A earth clamp
Welding cable with
500A electrode holder
Gas hose 2m
Optional
Amps control tig torch
foot pedal
Regulator
water cooler
trolley
400A AC DC Pulse TIG Welder Specification:
| Model | DIGI-TIG400ACDC LCD | DIGI-TIG500ACDC LCD |
| Power Supply Voltage | 3*400V 50/60Hz | 3*400V 50/60Hz |
| Rate Input Capacity (KVA) | 6.8 | 25 |
| Rate Input Current (A) | 24.3 | 37 |
| No Load Voltage | 80 | 80 |
| Output Current Range | TIG:5-400A MMA:10-315A | TIG:10-500A MMA:10-400A |
| Duty Cycle | 60% | 60% |
| Weight | 38kg | 58kg |
| L*W*H(mm) | 590*270*610 | 590*270*740 |
400A Spot TIG Welding Machine Features:
* Digital Control IGBT inverter DC MMA, Pulse AC DC TIG
* Lift and HF for TIG
* Hot arc start and arc force; Anti-stick for MMA
* 32-bit MCU inside
* AMPS remote function by 7Pins connector
* 2T/4T function
* Synergic (Easy/Auto) setting
* AC and DC mixed pulsed TIG
* Advanced square, soft square, triangular, sine four AC wave for selection.
* VRD for MMA (Option)
* Cool TIG weld, fast TAC, and spot/stitch
* Tungsten and EN/EP selection
* Twin pulse and waveform selection
If you are interested in our products or plan to import the 400A AC DC Pulse TIG Welding Machine and other construction welding products, please feel free to contact us. Looking forward to long-term cooperation with you.
