The LOKERMANN GRAND TIG 402 AC/DC PULSE is a professional three-phase inverter welding generator for TIG AC/DC, Pulse TIG and MMA welding. With advanced aluminium welding control, LCD interface and industrial-duty performance, it delivers precise and reliable welding across demanding fabrication applications.
The GRAND TIG 402 AC/DC PULSE from LOKERMANN is a professional three-phase inverter welding generator designed for TIG AC, TIG DC, TIG Pulse and MMA welding applications. Built for demanding industrial environments, it combines high welding performance, advanced waveform control and excellent arc stability for precision welding on aluminium, stainless steel, carbon steel and titanium.
With its industrial-duty construction, colour LCD interface and advanced AC/DC TIG functions, the GRAND TIG 402 AC/DC PULSE is developed for professional fabrication, heavy maintenance and high-quality production welding.
Overview
The GRAND TIG 402 AC/DC PULSE is engineered for professional welders requiring advanced TIG welding control with high output power and industrial reliability. The machine supports both AC and DC TIG welding, allowing precise processing of aluminium alloys as well as steel, stainless steel, copper alloys and titanium.
The large colour LCD display simplifies machine setup and parameter management, while advanced Pulse TIG functionality helps reduce heat input and material deformation on thinner materials. Adjustable AC waveform and balance settings provide improved aluminium welding quality, cleaning action and arc stability.
The machine also includes MMA welding capability with adjustable Hot Start and Arc Force for reliable electrode welding performance. Built-in temperature, voltage and current sensors help protect the machine during demanding industrial operation, while the inverter design supports stable welding even under fluctuating power supply conditions.
Recommended accessories
AC/DC TIG versatility
The machine supports both AC and DC TIG welding, making it suitable for aluminium alloys, stainless steel, carbon steel, titanium and copper alloys.
Pulse TIG control
Pulse TIG helps control heat input and minimise deformation during thin-material welding while improving weld appearance and process stability.
Advanced aluminium welding
Adjustable AC waveform and balance settings improve oxide cleaning, arc concentration and overall welding quality on aluminium materials.
MMA welding performance
The adjustable Hot Start and Arc Force functions improve electrode ignition and arc stability during MMA welding operations.
Industrial protection systems
Integrated temperature, voltage and current monitoring systems help protect the machine and maintain stable operation in demanding industrial environments.
Professional user interface
The colour LCD display allows intuitive setup and fast parameter adjustment, helping improve efficiency and reduce setup time.
The GRAND TIG 402 AC/DC PULSE is suitable for:
The GRAND TIG 402 AC/DC PULSE is designed for professionals who require advanced AC/DC TIG welding performance with industrial reliability and precise arc control. Its combination of Pulse TIG, aluminium welding capability, MMA functionality and LCD-guided operation makes it a highly versatile solution for demanding fabrication and production environments.
| Code | 12013 |
| Input voltage | 400V |
| Input frequency | 50/60 Hz |
| Input phase | 3 |
| Rated input power* | 15.4kW-20.9kW |
| Rated input current (I1MAX)* | 22.3A-30.2A |
| Rated input current (I1EFF)* | 17.3A-23.4A |
| Duty cycle 60% (10 min 40°C)* | 400A |
| Duty cycle 100% (10 min 40°C)* | 310A |
| No load voltage | 75V |
| Current range* | 10A/400A |
| Net weight | 33kg |
| Dimensions | 690x300x500mm |
| Protect class | IP23S |
| Insulation class | F |
| Power factor | 0.85 |
| Idle state power consumption | 40W |
| Efficiency | 88% |
| TIG trigger connector | 12 pins |
GRAND TIG 402 AC/DC PULSE
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