Used and Refurbished TIG Welders - Guaranteed and Fast Delivery

Looking for professional 3 phase new, used or refurbished TIG welders and associated equipment? Browse our full range below. Stocking only the leading & trusted manufacturers of welding equipment, we have over 50 years in the industry. For your peace of mind each machine comes complete with our own warranty package.

From basic DC power supplies to a premium AC DC TIG welder and combined TIG Inverter welding packages, we have hundreds to suit specification and budgets. Choosing used or second hand GTAW equipment can often mean you get a higher spec machine for your money, giving you the opportunity to consider machines you may thought weren't available with your budget available! So if you like flashing lights and buttons this could be the solution.

We buy and sell only professional, industrial TIG welding equipment, browse the selection below. Brands we like, but are not limited to, are Lincoln electric, Miller Electric, Fronius, Kemppi, ESAB, EWM, Thermal Arc, MesserMigatronic and GYS

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TIG (tungsten inert gas) welding is a form of arc welding often used on non – ferrous metals and allows for greater control over the weld than other forms of arc welding, which leads to higher quality welds.

TIG welding uses a shielding gas to protect the weld area from defects and embrittlement. This is usually in inert gas.

It's used for a variety of sometimes vastly different applications, from building space vehicles to bicycles. TIG welds are usually very resistant to corrosion, as well as cracking.



Why do we need TIG welders?

TIG welders are vital for creating high quality and strong welds on non-ferrous metal. The greater control compared to other types of arc welding allows for far better welds compared to those forms.

TIG welding can also be used in mechanised applications, for example orbital GTAW and longitudinal seam welding processes. It is the preferred method when repeatable, high quality welds are required. For example in hygienic process pipework and flue/ventilation manufacturing.

Welding together thick sections of stainless steel or non-ferrous metals is the most common use for this method. It is also an arc-welding process that uses a tungsten electrode to produce the weld. The TIG welding process is much more time-consuming than MIG or Stick welding and much more complex.

If using a welder with both AC DC functions you can also weld aluminium.  The first thing to know when welding aluminium is that it is unlike welding any other material and can be challenging. Aluminium needs special treatment - whether that means from the pre-weld preparation, choice of tools and equipment or the set-up and consumables used. The chance of defects is high if undue attention is paid to any of these details. Argon is commonly used for welding aluminium. However, argon/helium mixtures improve the weldability by increasing travel speeds and reducing heat input.

Not sure if the TIG welding process is for you? Read our Blog Guide on the 3 most common welding applications. 

TIG welding needs a lot more skill and time…

Westermans specialise in used 3phase industrial DC or AC DC TIG Welders – view our current stock above or give us a call today

New, Used and Refurbished TIG Welders for Sale

In stock is a vast range of makes and models of TIG welders, GTAW welders and TIG welding machines.

Simple Description of the TIG welding application:
TIG Welding is one type of welding amongst a few choices you have - MIG, Stick, SubArc and Orbital.

It can be used to weld copper, titanium, even two dissimilar metals, and is handy for making tricky welds (e.g. s-curves, or welds on round things)..

It generates heat via an arc of electricity jumping from a (tungsten metal) electrode to the metal surfaces you intend to weld - usually aluminum or steel.

It stands for Tungsten Inert Gas, after the tungsten electrode, and the sheath of inert gas (argon or an argon mixture) surrounding it. 

Your TIG system is likely to have the right electrode in it already.

For aluminum, the best choice is a pure tungsten rod.

You can alternately choose from any number of tungsten alloys (including thoriated tungsten - which is radioactive!) which are uniquely suited to welding particular alloys of metal.

There are some very good videos on YouTube demonstrating how to TIG weld - we have given you a few here to get you started.

GTAW Welding, TIG welding, AC/DC welders, DC welders

Gas Tungsten Arc Welding (GTAW) is frequently referred to as TIG welding. TIG welding is a commonly used high quality welding process. TIG welding has become a popular choice of welding processes when high quality, precision welding is required. 

In TIG welding an arc is formed between a non-consumable tungsten electrode and the metal being welded. Gas is fed through the torch to shield the electrode and molten weld pool. If filler wire is used, it is added to the weld pool separately. 

TIG Welding Benefits
Superior quality welds 
Welds can be made with or without filler metal 
Precise control of welding variables (heat) 
Free of spatter 
Low distortion

Shielding Gases
Argon + Hydrogen 

Helium is generally added to increase heat input (increase welding speed or weld penetration). Hydrogen will result in cleaner looking welds and also increase heat input, however, Hydrogen may promote porosity or hydrogen cracking.

GTAW Welding Limitations
Requires greater welder dexterity than MIG or stick welding 
Lower deposition rates 
More costly for welding thick sections


While the aerospace industry is one of the primary users of gas tungsten arc welding, the process is used in a number of other areas. Many industries use GTAW for welding thin workpieces, especially nonferrous metals. It is used extensively in the manufacture of space vehicles, and is also frequently employed to weld small-diameter, thin-wall tubing such as those used in the bicycle industry. In addition, GTAW is often used to make root or first pass welds for piping of various sizes. In maintenance and repair work, the process is commonly used to repair tools and dies, especially components made of aluminum and magnesium.Because the weld metal is not transferred directly across the electric arc like most open arc welding processes, a vast assortment of welding filler metal is available to the welding engineer. In fact, no other welding process permits the welding of so many alloys in so many product configurations. Filler metal alloys, such as elemental aluminum and chromium, can be lost through the electric arc from volatilization. This loss does not occur with the GTAW process. Because the resulting welds have the same chemical integrity as the original base metal or match the base metals more closely, GTAW welds are highly resistant to corrosion and cracking over long time periods, GTAW is the welding procedure of choice for critical welding operations like sealing spent nuclear fuel canisters before burial.

To find out more technical understanding of TIG welding… or Aluminium welding… we suggest you go to some of the forums online or dedicate welding and joining web sites available.

Artist Kevin Caron talks and demonstrates here how to TIG weld

There is a NEW word on the scene....TAG welding. Take a look at the welding forum comments on TAG welding. It will make you laugh and maybe confuse you further TIG TAG GTAW.....

Manufacturers of TIG welding equipment include LincolnMiller, Hobart, ESABBOCMurexButters, NBC, FroniusKemppiMesser, Migatronic, Oerlikon, SAF

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