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West Country Welding Supplies

EWM Tetrix 401 Synergic activArc - West Country Welding Supplies, UK - West Country Welding Supplies, UK

EWM Tetrix 401 Synergic activArc

TIG and MMA inverter AC/DC welding machine

All EWM machines come with a three year parts and labour warranty as standard.

EWM Tetrix 401 Synergic activeArcHighlights

  • Maximum efficiency for all requirements with reproducible welding results
  • Excellent quality thanks to the fully digital inverter welding technology
  • EWM TIG activArc - the powerful TIG arc - faster, better and simpler welding across the entire power range
  • SYNERGIC operating interface: One-dial operation with up to 256 pre-programmed welding tasks (JOBs), maximum ease-of-use
  • Easily portable thanks to large wheels, fits through standard doors, easy loading and unloading thanks to the even wheel gauge, can be lifted by crane
  • Multifunctional and ergonomic grip system: effort-free process, practical holder for tube packages, impact protection
  • Intelligent casing design with optimised air cooling for greater cooling output and less soiling of the machine

Main Areas Of Use

  • TIG welding: unalloyed, low-alloy and high-alloy steels, nickel-based alloys, copper and special materials, repair welding on cast aluminium components
  • MMA welding with rutile and basic coated electrodes: unalloyed and low- and high-alloy steels, nickel-based and copper alloys
  • Production work, metal construction, food and chemicals industries, pipe industry, closed container and plant construction, vehicle, machine, plant and tool construction, and more


  • Mobile, water cooled, decentralized, can be lifted by crane
  • TIG welding with HF ignition and liftarc
  • MMA welding: adjustable hotstart current and time, arcforcing, antistick
  • Digital display for welding voltage, current and parameters
  • Powerful cooling system with centrifugal pump, pressure monitor, pump and temperature-controlled fan
  • Ideal for robot, industrial bus and mechanised applications and documentation via optional interfaces

Technical Specifications

Welding current

  • 5 A - 400 A

Duty cycle 20°

  • 45% - 400 A
    65% - 380 A
    100% - 330 A

Duty cycle 40°

  • 60% - 400 A
    100% - 360 A

Open circuit voltage

  • 92 V

Mains voltage (tolerances)

  • 3x400 V (-25% / +20%)

max. connected load

  • 17,2 kVA

recom. generator rating

  • 23,2 kVA

Mains fuse

  • 3 x 35 A

Dimensions (LxWxH)

  • 1100x454x951 mm


  • 111,5 kg

Contact us for more details or to discuss any of your welding needs

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