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Second Hand MIG Welders - Make Great Savings Buying Secondhand

We stock a variety of high-quality industrial and professional MIG MAG welders and equipment, including synergic welders, from a range of industry-leading manufacturers including Fronius, ESAB, and Kemppi.

Make great savings by buying Used or Refurbished from Westermans today.  If you have a heavy duty MIG welding machine you are selling, contact us to sell or swap. 


Fronius Transpuls Synergic 3200 CRNI MIG Welder with VR4000 Wire Feed Water cooled Fronius Transpuls Synergic 3200 CRNI MIG Welder with VR4000 Wire Feed Water cooled
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Fronius TransPuls Synergic 4000 MIG Welder water cooled Fronius TransPuls Synergic 4000 MIG Welder water cooled
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Lincoln LF30 Wire feed unit Lincoln hf unit Lincoln LF30 Wire feed unit Lincoln hf unit
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Kemppi available welding programs for fastmig pulse fastmig x and kemparc Kemppi available welding programs for fastmig pulse fastmig x and kemparc
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Miller Axcess 450 MIG welder with Axcess feed unit Miller Axcess 450 MIG welder with Axcess feed unit
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Lincoln LN25 pro Semi Automatic Wire Feed Unit for MIG Welding to Suit Most Diesel Welders or DC MMA Electric Power Source Lincoln LN25 pro Semi Automatic Wire Feed Unit for MIG Welding to Suit Most Diesel Welders or DC MMA Electric Power Source
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Fronius Transpuls Synergic 4000 MIG welder. Optional Pullmig Torch Fronius Transpuls Synergic 4000 MIG welder. Optional Pullmig Torch
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Lincoln Idealarc DC 400 amp New and used Multi Process Welding Power Source with Feed Unit Lincoln Idealarc DC 400 amp New and used Multi Process Welding Power Source with Feed Unit
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ESAB LUD 450 Synergic Mig welder with separate Wire Feed or dual feed ESAB LUD 450 Synergic Mig welder with separate Wire Feed or dual feed
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Lincoln Speedtech 500 MIG Welder with F45 feed Unit Lincoln Speedtech 500 MIG Welder with F45 feed Unit
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SifWeld MTS400 Industrial MIG Welder - Special Price £1900.00 SifWeld MTS400 Industrial MIG Welder - Special Price £1900.00
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Lincoln magster 450 MIG welding machine with PDE 51 Feed unit Lincoln magster 450 MIG welding machine with PDE 51 Feed unit
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Kemppi super snake GT20s Kemppi super snake GT20s
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Fronius TransSynergic 5000 MIG welder Fronius TransSynergic 5000 MIG welder
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Kemppi Pro Evolution 3200  multi-purpose power source for mma tig or mig Hire Me Kemppi Pro Evolution 3200 multi-purpose power source for mma tig or mig
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ESAB ARISTO 5000i Water Cooled MIG Welder with Aristo MA6 Controls ESAB ARISTO 5000i Water Cooled MIG Welder with Aristo MA6 Controls
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EWM Phoenix expert puls 521 and 421 water cooled Multi-process mig EWM Phoenix expert puls 521 and 421 water cooled Multi-process mig
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Kemppi Fastmig pulse MIG welder 450 amp  MXF67 feed unit with optional snake torch Kemppi Fastmig pulse MIG welder 450 amp MXF67 feed unit with optional snake torch
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Fronius TransPuls Synergic 2700 MIG MAG welder Fronius TransPuls Synergic 2700 MIG MAG welder
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ESAB Aristo MIG C3000i MIG welding machine with U6 controller ESAB Aristo MIG C3000i MIG welding machine with U6 controller
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Kemppi Arcfeed 300 Wire Feed Unit to Suit Diesel Welder Kemppi Arcfeed 300 Wire Feed Unit to Suit Diesel Welder
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Miller 12vs to suit diesel welder Miller 12vs to suit diesel welder
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Lincoln Electric LF-38 Wire Feeder Lincoln Electric LF-38 Wire Feeder
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Lincoln LN27 Wire Feed Units Lincoln LN27 Wire Feed Units
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Lincoln LN15 feed unit Lincoln LN15 feed unit
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Gullco PipeKAT Automated Orbital Pipe Welding System Gullco PipeKAT Automated Orbital Pipe Welding System
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GYS NeoPulse 400 Pulsed MIG/MAG Welding System GYS NeoPulse 400 Pulsed MIG/MAG Welding System
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Lincoln Invertec V350-P MIG Welding Set Lincoln Invertec V350-P MIG Welding Set
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GYS ProMIG 3 phase MIG Welding Machine GYS ProMIG 3 phase MIG Welding Machine
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GYS Magys MIG Welding Packages with Synergic Capability GYS Magys MIG Welding Packages with Synergic Capability
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Lincoln STT  Mig Welder Fitted with separate LN742 Wire Feed Unit Lincoln STT Mig Welder Fitted with separate LN742 Wire Feed Unit
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ESAB/LINDE Digimatic MIG Micro processor controls ESAB/LINDE Digimatic MIG Micro processor controls
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ESAB Mobile Wire feed Unit, model 300 ESAB Mobile Wire feed Unit, model 300
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Lincoln Idealarc DC 1000 amp Welding Power Source Supply - Heavy duty Hire Me Lincoln Idealarc DC 1000 amp Welding Power Source Supply - Heavy duty
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Fronius TransPuls Synergic 5000MV Multi Voltage Pulse MIG Welding Package - New Fronius TransPuls Synergic 5000MV Multi Voltage Pulse MIG Welding Package - New
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Fronius TransPuls Synergic 4000MV Multi Voltage Pulse MIG Welding Package - New Fronius TransPuls Synergic 4000MV Multi Voltage Pulse MIG Welding Package - New
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Fronius TransSteel 5000 Synergic MIG Welding Package - New Fronius TransSteel 5000 Synergic MIG Welding Package - New
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Fronius TransSteel 3500 Synergic MIG Welding Package - New Fronius TransSteel 3500 Synergic MIG Welding Package - New
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Thermal Arc Fabricator 211i Compact MIG and Multi Process Inverter - New In Stock Thermal Arc Fabricator 211i Compact MIG and Multi Process Inverter - New In Stock
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Thermal Arc Fabricator 320S Separate Conventional MIG Welding System - New Thermal Arc Fabricator 320S Separate Conventional MIG Welding System - New
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When versatility is required and speed of importance, welders turn to MIG (metal insert gas) welding. It’s one of the most common forms of industrial welding and is sometimes performed automatically by automation rather than by hand.

MIG welding is a form of arc welding that uses a shielding gas to protect the weld area while it’s being welded.

Why do we need MIG welders?

MIG welding machines are highly versatile and can be used to weld a variety of metals, which has made it highly popular in the industrial area for speed of application.

They’ve been in continuous development since they were first invented and there are now a number of different variations of MIG welders, such as synergic/pulse machines using a variety of new innovation like coldMIG and highPULSE.

It is the most simplest of welding processes and is easy to perform, making it user friendly and productive.

Westermans specialise in used and refurbished heavy duty MIG Welders.  View our current stock or above or give us a call today.  

We need to continually source Used MIG welding equiment. Give us a chance to buy any MIG welders you are disposing of before you sell or part-exchange. We pay good prices.

New, Used and Refurbished MIG Welders

Fronius welding machine

MIG Welding

MIG stands for Mechanised Inert Gas Welding and is the most simple form of welding.

Gas Metal Arc Welding (GMAW) is frequently referred to as MIG welding. MIG welding is a commonly used high deposition rate welding process. Wire is continuously fed from a spool. MIG welding is therefore referred to as a semiautomatic welding process.
 
 
MIG Welding Benefits
All position capability
Higher deposition rates than SMAW
Less operator skill required
Long welds can be made without starts and stops
Minimal post weld cleaning is required
 
 
MIG Welding Shielding Gas
The shielding gas, forms the arc plasma, stabilizes the arc on the metal being welded, shields the arc and molten weld pool, and allows smooth transfer of metal from the weld wire to 
the molten weld pool.
 
 
There are three primary metal transfer modes:
Spray transfer 
Globular transfer
Short circuiting transfer
The primary shielding gasses used are:
Argon
Argon - 1 to 5% Oxygen
Argon - 3 to 25% CO2
Argon/Helium
 
CO2 is also used in its pure form in some MIG welding processes.  However, in some applications the presence of CO2 in the shielding gas may adversely affect the mechanical properties of the weld. 
 
Want to know how and why MIG welding developed and works?
 
This is a basic guide on how to weld using a metal inert gas (MIG) welder. MIG welding is the process of using electricity to melt and join pieces of metal together. MIG welding is sometimes referred to as the "hot glue gun" of the welding world and is generally regarded as one of the easiest type of welding to learn.

Think of this as a guide to get you started MIG welding. Welding is a skill that needs to be developed over time, with a piece of metal in front of you and with a welding gun/torch in your hands. There are many online tutorials, youtube videos and forums to help you develop into a MIG welder.

MIG welding was developed in the 1940's and 60 years later the general principle is still very much the same. MIG welding uses an arc of electricity to create a short circuit between a continuously fed anode (+ the wire-fed welding gun) and a cathode ( - the metal being welded). 

The heat produced by the short circuit, along with a non-reactive (hence inert) gas locally melts the metal and allows them to mix together. Once the heat is removed, the metal begins to cool and solidify, and forms a new piece of fused metal.

A few years ago the full name - Metal Inert Gas (MIG) welding was changed to Gas Metal Arc Welding (GMAW) but the name MIG welding is still commonly used around the world.

MIG welding is useful because you can use it to weld many different types of metals: carbon steel, stainless steel, aluminium, magnesium, copper, nickel, silicon bronze and other alloys.
 
See this very basic but thorough video demonstrating the start to finish of joining two peices of metal using the MIG welder - the fastest, easiest and simplest form of welding machine available today.

Here are some advantages to MIG welding:
·         The ability to join a wide range of metals and thicknesses
·         All-position welding capability
·         A good weld bead
·         A minimum of weld splatter
·         Easy to learn
 
Here are some disadvantages of MIG welding:
·         MIG welding can only be used on thin to medium thick metals
·         The use of an inert gas makes this type of welding less portable than arc welding which requires no external source of shielding gas
·         Produces a somewhat sloppier and less controlled weld as compared to TIG (Tungsten Inert Gas Welding)
 
To find out more technical understanding of MIG welders and MIG welding…we suggest you find a mig welding forum online or visit specific web site relating to this process. We stock pulsed MIG, MAG, synergic MIG, multi process MIG, MIG for aluminium machines.
 
 
MIG MAG welding equipment manufacturers include MurexESABKemppiFroniusMillerLincoln, Butters, NBC, Migatronic, Hobart, SAFMesser
 
Together We Weld the World
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