TIG Welders

See below for a range of TIG welders with AC/DC and DC only output. TIG (Tungsten Inert Gas) welding is a welding process preferred for achieving precision, using tungsten electrodes and an inert shielding gas. To perform TIG (GTAW) welding, explore our full range of TIG welders - AC/DC and DC-only machines available now. Also check out related products like TIG welding rods, TIG torches & spares and other accessories to complete your welding setup. See also warranty for further information on tig welding machine warranty support from engweld and your chosen manufacturer. 

TIG Welding Machines

Elevate your welding projects with our range of TIG welders (GTAW). We offer a variety of TIG welding machines from leading brands, ensuring you get the perfect blend of quality and performance. Whether you're a seasoned professional or just starting your welding journey, TIG welding's controlled heat and clean welds are ideal for thin materials, intricate details, and pipework. As such, a TIG welder is a great purchase for many possible applications.

Choose from our selection of AC/DC TIG welders (perfect for welding aluminium and magnesium) and our DC-only TIG welders (great for mild steel, stainless steel and copper alloys).

They all offer a range of advanced features, including:

• Pulse welding functionality with adjustable pulse frequency
• Water-cooled and air-cooled models to match your workload and preferences

These features help you achieve cleaner, more precise welds, especially on sensitive or thin materials.

Not sure which welder is right for you? Our expert team is here to help. Contact us anytime for tailored advice and guidance on finding the perfect machine for your needs and budget.

Other related categories to consider when buying a TIG welder:

Related TIG Products & Accessories

• TIG Welding Rods
• TIG Torches & Spares
• TIG Foot Pedals
• TIG Welding Gloves
• Tungsten Electrodes

TIG Welder Technical Specifications Comparison

This table compares the key technical specifications for the popular ESAB, Migatronic and Lincoln TIG welding machines. The most critical specifications for TIG are the Current Type (DC only vs. AC/DC), Max Output, and Duty Cycle.

TIG Welders FAQs

What is TIG welding?

TIG welding, which stands for Tungsten Inert Gas welding and is also known as GTAW (Gas Tungsten Arc Welding) is a type of welding that uses a non-consumable tungsten electrode to produce the weld. It differs from MIG welding through how the arc is used, for example MIG welding uses a wire to create the spark needed for welding, whereas TIG welding uses rods of tungsten to weld metals together.

Engweld supplies everything you need for TIG welding including TIG Torches, TIG Torch Spares, TIG Welding Rods, Tungsten Electrodes and TIG Welding Gloves.

What gas do TIG welders use?

Use our handy interactive welding gas selector guide. Select your material, welding type and material thickness and the tool will propose the most suitable shielding gas for your welding application based on our range of welding gases. Remember to pick up a gas regulator too.

What works for my budget?

Like any piece of equipment, you generally get what you pay for in terms of machine quality and durability, however what you set your budget as also depends on how advanced you need the machine to be. A classic TIG welder like the Lincoln Aspect 200A AC/DC are typically at the more affordable end of AC/DC TIG machines, whereas a multi-process machine such as the ESAB Rebel 205ic AC/DC or Parweld XTM211Di can be more costly thanks to there advanced capabilities.

What materials can be welded?

TIG welders have the benefit of allowing the welding of more metals and alloys than any other process, meaning materials like stainless steel, aluminium, magnesium, copper, brass, bronze and even gold can be welded.

AC/DC vs DC only TIG Machines                                                                     

With AC/DC machines your options are fairly unlimited as you can switch the current type depending on the metal you are working with, while DC only machines are used most commonly for metals like mild steel or stainless steel. If you are welding aluminium then you would need an AC/DC/ TIG welding machine for this. It also worth noting which tungsten’s you may need depending on what material you’re welding. Thoriated (red tungsten) for mild steel and stainless and Zirconiated (white tungsten) for aluminium.

What benefits are there using a higher frequency on AC TIG?

Combined with adjusting the balance control to increase the electrode negative polarity—resulting in deeper penetration and tungsten that doesn’t ball up — high AC frequency provides the ability to weld very tight joints with good penetration and without the risk of laying down too much filler metal. 

What is pulse welding?

Pulse welding is welding that alternates between a high and low current. This reduces the overall heat input and spatter while ensuring greater resistance to a lack of fusion. The benefit of pulse welding is that you can weld both thicker and thinner metals without burning through them. 

Are there any benefits of 3 phase over single phase?                              

Comparing single-phase vs three-phase power, three-phase power supplies are more efficient. A three-phase power supply can transmit three times as much power as a single-phase power supply, while only needing one additional wire (that is, three wires instead of two). This allows for more amperage on a machine, meaning thicker materials can be welded or allows for a higher duty cycle meaning longer weld times. 

What is the difference between Lift TIG and HF TIG?                                          

Lift TIG and HF (high-frequency) TIG are two different ways of starting the arc that allows welding between the tungsten rod and the work material to take place. With Lift TIG, the tungsten electrode must be touched to the metal and lifted away a little. When the tungsten touches the metal the current is low so the electrode and workpiece do not stick together. It is only when there is a gap between the two that the machine senses the break and supplies the full current to start welding correctly.

HF TIG however occurs when the welder places the tungsten rod close to the metal and presses the torch trigger to start the arc and begin welding. HF TIG is an option available on most professional TIG machines which allow you to choose between Lift and HG to start the welding process.

Why should I use a TIG pedal with my TIG welder?                                    

Simply put, having a TIG pedal allows you to have more control over the amperage being used and therefore more control over the accuracy and quality of the final weld.

See our full range of TIG Foot Pedals - Click here

Input voltage & electrical supply – What you need to know

Electricity supplies can vary across the UK so before you begin TIG welding it is important to know where you will be carrying it out. Standard UK mains outlets supply 230v, however you may be limited by a smaller voltage available in your workspace so also check what amp rating you have to calculate the power needed to run your machine and ensure you have enough. To know what supply you will need, you can use the rule of 1 to 10. 1A in the supply means 10A out, therefore a 240A machine would need a 24A input etc.  

IP23 Rating: IP23 vs IP23S

AN IP rating refers to the Ingress Protection rating of a TIG machine which provides information on.

The level of protection it has from foreign particles like dust or water. IP ratings can vary from the machine having no protection to protection from a particular distance or full protection from strong jets of water or even high levels of pressure when submerged. The additional letter given on an IP23S rating refers to how the machine was tested with an S meaning the machine was stationary during the water test. 

Meet Our Welding Experts

When your project demands more than just standard solutions, turn to the Fabex team at Engweld and Energas. This elite group of highly skilled engineers and fabricators specialises in tackling the most intricate and challenging welding and metalworking projects.

From unique material requirements to bespoke structural fabrications and precision-engineered components, the Fabex team combines deep technical knowledge with extensive hands-on experience. They're equipped to navigate the complexities that often deter others, delivering innovative, reliable, and high-quality results.

We understand that complex projects require meticulous planning and execution. The Fabex team works closely with clients, offering expert consultation and a collaborative approach to ensure your vision is realised with unparalleled precision and efficiency.

TIG Welder Service & Repair

To further complement our expert fabex sales team, we have a expert team of 8 repair & service engineers to support all our customer base from small to large customers to repair, service and calibrate your tig welder, to get you back fully operating and welding.