GYS PROTIG 231 Flexible Voltage DC TIG Welder
The GYS PROTIG 231 DC FV TIG Welder is a compact, portable DC TIG and MMA welding inverter designed for precision, flexibility and professional performance. With FV (Flexible Voltage) and PFC technology, it delivers a stable, reliable arc from 85–265 V even when used with 100 m extension leads. Ideal for site work, thin-sheet TIG, pipe welding and high-accuracy fabrication.
GYS PROTIG 231 DC FV TIG Welder.
The GYS PROTIG 231 DC FV is a high-performance pulsed DC TIG welding machine built for demanding professionals who need absolute stability, control and portability. Combining FV and PFC technology, it maintains exceptional arc quality across a wide voltage range and in challenging on-site environments. Whether you’re carrying out precision TIG on thin materials, vertical-up MMA welding on pipework, or using long extension leads on site, the PROTIG 231 DC FV ensures consistent results every time. Engineered with intelligent fan management, advanced arc regulation and multiple ignition modes, this TIG welder delivers outstanding weld quality with minimal distortion.
Key Features:
- Compact, portable TIG and MMA inverter – perfect for on-site and workshop use
- Flexible Voltage (FV) + PFC technology allows operation from 85 V to 265 V with a perfectly stable arc
- Works on extension leads up to 100 m
- TIG DC: smooth DC welding for ferrous metals, stainless steel, copper, titanium and alloys
- TIG DC Pulse (0.1–2000 Hz) for thin sheet welding from 0.3 mm with reduced distortion
- MMA and MMA Pulse (up to 500 Hz) for easier vertical/uphill welding
- HF or Lift TIG start for sensitive environments
- TIG tacking modes:
- Spot tacking (0.1–60 s)
- Pulse tacking (0.01–60 s)
- Trigger controls: 2T, 4T and 4T LOG
- Stores up to 50 programs per process for repeat jobs
- Advanced secondary regulation for maximum arc stability
- Automatic torch detection (lamella, double-button, potentiometer, Up/Down)
- Remote control compatibility—connect foot pedals or hand controls without tools
- VRD option reduces open-circuit voltage for safer site welding
- Reinforced body with anti-shock feet
- Intelligent fan management reduces noise, dust ingress and power consumption
- Generator compatible (±15%)
- Clear illuminated display readable from 10 m away
- Overvoltage protection up to 400 V (PROTEC 400)
Technical Data:
- Input Voltage: 85–265 V (FV)
- TIG Current Range: 10–230 A
- MMA Current Range: 10–200 A
- Duty Cycle @ 40°C (TIG):
- 160 A @ 60%
- 230 A @ 23%
- Duty Cycle @ 40°C (MMA):
- 135 A @ 60%
- 200 A @ 25%
- TIG Pulse Frequency: 0.1–2000 Hz
- MMA Pulse Frequency: 0.4–500 Hz
- Open Circuit Voltage: 80 V (VRD < 35 V)
- Electrode Diameter: up to Ø 5 mm
- Dimensions: 41.5 × 20 × 32.5 cm
- Weight: 10 kg
- Protection Rating: IP21
- Standard: EN 60974-1
- Torch Included: TIG26B – 4 m
Kit Includes:
- PROTIG 231 DC FV power source (Ref. 079311)
- TIG26B torch – 4 m
- Earth clamp – 2 m (25 mm²)
- Electrode holder – 2 m (25 mm²)
The GYS PROTIG 231 DC FV TIG Welder is a versatile, site-ready solution for professionals who demand outstanding arc stability, precision control and reliable performance in all environments. From thin-sheet TIG fabrication to heavy-duty pipe welding, its advanced pulsed functions, flexible voltage capability and intuitive interface make it an exceptional choice for workshops, engineers and on-site welders alike. Built tough, easy to transport and packed with high-end features, it delivers premium results wherever the job takes you.
| Brand | GYS |
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The PROTIG 231 DC FV is a professional TIG DC and MMA welding machine designed for precision fabrication, stainless steel work, pipe welding, thin sheet metal tasks and maintenance engineering. Its pulse capability ensures clean, controlled welding with minimal distortion.
Yes. Thanks to its Flexible Voltage (85–265V) and PFC technology, the machine operates reliably on extension leads up to 100 metres long while maintaining exceptional arc stability. This makes it ideal for site work and locations with weaker mains supply.
In TIG DC mode, the machine can weld mild steel, stainless steel, copper, titanium, and various alloys. In MMA mode, it runs electrodes up to Ø 5 mm, making it suitable for structural steel, repair work and general fabrication.
Yes. It offers both HF start for clean, non-contact arc initiation and Lift TIG for environments where HF ignition is not suitable, such as automotive workshops or electrically sensitive areas.
Yes. Its pulsed TIG capabilities (0.1–2000 Hz) allow precise heat control, enabling high-quality welding on thin materials from around 0.3 mm with minimal distortion or warping.
The kit includes a 4m TIG 26B torch, a 2m earth return lead (25 mm²), and a 2m MMA electrode holder (25 mm²). This means you can begin both TIG and MMA welding straight out of the box.
Yes. The machine allows storage of up to 50 welding programs per process, making it easy to recall preferred parameters for repeat work or workshop procedures.
Yes. The machine is generator-friendly within ±15% voltage tolerance, making it suitable for remote work where stable mains power is unavailable. PFC technology helps maintain arc quality even on fluctuating generator output.
Yes. If you need more units than currently displayed, please email us at sales@weldingsuperstore.co.uk. We can source additional stock, although lead times may vary depending on supplier availability.
Hints and Tips for Using GYS PROTIG 231 Flexible Voltage DC TIG Welder
Start with Clean Materials
Ensure your metal surfaces are clean and free from rust, paint, or oils before welding. This helps achieve a smooth arc and prevents contamination in the weld pool.
Set the Right Current for Your Material
Use the machine’s TIG or MMA current range appropriate to the thickness and type of metal. Thinner metals benefit from lower currents, while thicker materials may need higher settings to achieve full penetration.
Use Pulse TIG for Thin Sheets
When working with thin metal, try the pulsed TIG mode. It helps control heat, reducing distortion and ensuring a clean, precise weld.
Try Different TIG Ignition Methods
The PROTIG 231 offers HF and Lift TIG ignition. HF is great for quick, contactless starts, while Lift TIG is useful in sensitive environments. Experiment with both to see which works best for your setup.
Position the Torch Correctly
Keep a steady hand and maintain the correct torch angle, usually around 70–80°, for smooth bead formation. Moving too quickly can create gaps, while moving too slowly may overheat the metal.
Practice on Scrap Metal First
Before tackling your main project, try a few welds on scrap pieces. This helps you adjust current, pulse frequency, and travel speed comfortably.
Store Your Settings
Take advantage of the 50-program memory feature. Saving your preferred settings for specific materials and tasks can save time and improve consistency for repeat jobs.
Keep Your Workspace Safe and Ventilated
Always wear appropriate PPE, such as gloves, helmet, and protective clothing. Ensure your work area is well-ventilated to avoid fumes and reduce fire hazards.
Maintain Your Welder
Regularly check cables, torch consumables, and the machine itself. Proper care keeps the welder performing reliably and prolongs its lifespan.