Manufacturer: TELWIN

Microprocessor controlled, TIG (high frequency HF or LIFT striking), PULSE TIG and MMA inverter welding machine in direct current and alternating current (AC/DC). 

Use with a wide range of materials such as steel, stainless steel, titanium, copper, nickel and their alloys.


  • Pulse and EASY pulse operation
  • 9 customized welding programmes
  • TIG regulations: “bi-level”, start up/end current, spot welding time, pre/post gas, current up/down slope, balance DC AC, square wave frequency
  • MMA regulations: arc force and hot start
  • anti-stick device
  • remote control and G.R.A water cooling connector
  • Storagen on on-board E2PROM of the last 10 alarms
  • thermostatic, overvoltage, undervoltage, inside dirtiness, overcurrent, phase failure, water cooling unit protections.

Complete with TIG welding accessories.

ModelTECHNOLOGY TIG 421 DC-HF/LIFT 400V+ACC (816103)
Voltage400 V, 50/60 Hz, Three phase
Current range5 – 350 A
Max current350 A – 35%
Current at 60%250 A
Max no load voltage64 V
Max absorbed current21 A
Absorbed current at 60%13 A
Max absorbed power14 kW
Absorbed power at 60%8 kW
Main fuse16 A
Power factor (cosphi)0.9
Usable electrodes in DC1.6 – 6 mm
Protection degreeIP 23
Dimension53 × 24 × 45 cm
Weight32.4 kg
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