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SWP TIG Welders

Cobra by Stealth 321 AC/DC TIG Water-Cooled Welder – 400V

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£2,698.20 £2,951.50Price range: £2,248.50£2,698.20 through £2,459.58£2,951.50 Exc VATInc VAT

SGL-selected packages · Free compatible plug · UK support
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Machine guide
Processes
AC/DC TIG / MMA/ARC
Power supply
400/415V three-phase
Duty cycle
320A @ 60%; 250A @ 100% (40°C, 10-minute cycle)
Suitable metals
mild/carbon steel, stainless steel, aluminium, cast iron or dissimilar steels with the correct electrode
Single-pass
TIG: about 0.5–10 mm; MMA: about 3–15 mm
Multi-pass
TIG: 20+ mm with joint preparation; MMA: 30+ mm with joint preparation

Practical selection guide, not a guaranteed manufacturer limit. Capacity changes with process, metal, joint design, preparation, consumables, position, duty cycle and operator technique; figures assume maximum rated output on the appropriate supply.

Cobra by Stealth 321 AC/DC TIG Water-Cooled Welder – 400V

The Cobra by Stealth 321 AC/DC TIG Water-Cooled Welder – 400V is a 320A ac/dc tig / mma/arc machine for workshop, fabrication, maintenance or site work. The summary below makes its processes, electrical supply and practical material capacity easy to compare.

Machine capability at a glance

Processes AC/DC TIG / MMA/ARC
Power supply 400/415V three-phase
Suitable metals mild/carbon steel, stainless steel, aluminium, cast iron or dissimilar steels with the correct electrode
Typical single-pass guide TIG: about 0.5–10 mm; MMA: about 3–15 mm
Typical multi-pass guide TIG: 20+ mm with joint preparation; MMA: 30+ mm with joint preparation

Practical selection guide, not a guaranteed manufacturer limit. Capacity changes with process, metal, joint design, preparation, consumables, position, duty cycle and operator technique; figures assume maximum rated output on the appropriate supply.

Full product details

The Cobra by Stealth 321 LCD AC/DC TIG Welding Machine is a cutting-edge, three-phase 400V system that provides professional-grade performance with a range of advanced features for both industrial and precision welding. Designed to meet the demands of tough welding tasks, this machine combines AC/DC technology, water cooling, and advanced control systems to deliver consistent, high-quality results.

Key Features & Benefits:

Input Voltage (Three-Phase 400V) – Ensures stable performance for high-demand applications.
IGBT Module Converter Technology – Provides efficient power conversion for enhanced welding quality and performance.
Phase Loss Protection – Safeguards against power interruptions, ensuring reliable and continuous operation.
Lift TIG and HF Start Modes – Offers smooth arc initiation for precise welding control.
Adjustable Arc Force – Enhances weld penetration for optimal results on various materials.
AC Waveforms – Includes square wave, sine wave, and triangular wave, providing versatility for different welding tasks.
AC Balance Control – Monitors oxide removal and improves cleaning during aluminium welding.
Built-in Water Cooler – Keeps the torch at the optimal temperature, preventing overheating and extending its lifespan.
4.3″ LCD Display – Clear and intuitive interface for precise control and real-time feedback.
Generator Friendly – Performs well with unstable power supplies, making it versatile for various environments.
Up/Down Button Remote Control Torch – Allows for precise control over the welding process.
Roller Wheels & Amps Control on Torch – Provides easy movement and quick adjustments for welding professionals.

Versatile & Reliable Welding Performance

Welding Current Range:

  • TIG DC: 5-320A
  • MMA DC: 10-320A

Duty Cycle:

  • 60% at 320A
  • 100% at 250A

Pulse Control:

  • Pulse Frequency: 0.5-999 Hz
  • Pulse Width: 5-95%

Cooling:

  • AF (Air Forced) cooling system for optimal performance during extended operations.

Enhanced Package for Professional Use

The Cobra by Stealth 321 LCD is compatible with a range of optional packages for even greater versatility:

  • 9827H Air-Cooled TIG Package (includes torch, accessory kit, TIG adaptor, electrode lead, and plug)
  • 9828H Water-Cooled TIG Package (includes additional components for superior performance)
  • 9826H Wired Pedal (for enhanced control).

Built for Durability and Ease of Use

  • Net Weight: 31.1kg
  • Dimensions: 710 x 270 x 490 mm
  • Protection Class: IP21S – Offers reliable protection against dust and water ingress.
  • Cooling: Air Forced (AF) system to maintain optimal temperatures.

Elevate your welding with the Cobra by Stealth 321 LCD AC/DC TIG Welding Machine – built for precision, durability, and professional-grade performance.

Order today and experience high-quality welding that delivers every time.