MIG Welders for MIG Welding
A MIG welder, also known as a MIG welding machine or a MIG welder unit, is the equipment used to perform MIG welding. MIG (Metal Inert Gas) welding is a widely used welding process in which an electric arc forms between a consumable wire electrode and the workpiece, melting the wire and fusing it with the base metal to create a weld. The MIG welding wire and the weld pool are protected by an inert gas to prevent contamination.
One of the advantages of MIG welding over other welding processes is that it is easy to learn and it offers speed. The MIG welding process is generally faster than other welding processes like TIG welding, making it ideal for high-production applications.
The MIG welding process is also versatile and can be used on various metals, including steel, aluminium, and stainless steel. It is frequently used in a wide variety of applications including auto body, general fabrication, and repair work.
Engweld offers a wide range of MIG welding machines including portable, compact, and separate MIG welders. You can choose from air-cooled or water-cooled and in single-phase or 3 phase options.
Engweld also stocks other welding machines, including TIG Welders, MMA & Arc Welders, and Multiprocess Welders.
Factors to consider when choosing MIG Welder
Choosing a MIG welder can be challenging as there is an abundance of options in the market. Here are some key factors to consider to help you narrow down your options.
Check the machine’s power capacity and amperage range. Make sure it can handle the thickness of the materials you plan to weld. Choose a welder with a duty cycle that matches your expected welding duration. The duty cycle indicates how long the machine can operate continuously before it needs to cool down. If you plan to weld aluminium or other non-ferrous metals then you may need a welder that is compatible with a spool gun for better control.
You should also consider the ease of use. See if the welder is easy to set up and adjust with user-friendly controls and a clear interface. Some welders may have a digital display which can make it easier to set and monitor your welding parameters accurately. If you will need to move it frequently then you will need to consider the size and portability.
It will also be worth considering brand reputation and warranty. Manufacturers may offer 1-5 years warranty. There are other factors to consider as well such as budget, materials that can be welded, voltage, IP rating, etc. Check out our guide on How to choose the right MIG welder?
Air-Cooled and Water-Cooled MIG Welders
The choice between air-cooled and water-cooled MIG welders will depend on your welding needs and the specific applications you will be working on.
Air-cooled MIG welders are suitable for light to medium-duty welding applications where you don’t need to weld continuously for extended periods. They are simpler and easier to move around as they don’t require additional water-cooling components. This makes them generally more portable because the water cooling system can be heavy.
Air-cooled welding machines are also typically less expensive and simpler to maintain since they have fewer components that can malfunction.
Water-cooled MIG welders are suitable for heavy-duty or high-amperage welding applications, where air-cooled welders may overheat. They are equipped with a dedicated cooling system to maintain lower temperatures. This allows for extended welding sessions at higher amperages without overheating.
Water-cooled welders may be more expensive than their counterparts but they can extend the life of your MIG torch and consumables by reducing heat-related wear and tear. With better heat dissipation, water-cooled systems can also reduce downtime due to overheating.
Gas or Gasless MIG Welders
Most MIG welders use an external shielding gas to protect the weld pool from atmospheric contamination. Gasless MIG welders use a self-shielding wire. It is a tubular wire with a flux core that generates a shielding gas when it melts, eliminating the need for an external shielding gas.
A gasless MIG welder offers portability as you don’t need to carry a gas. Gas MIG welders produce cleaner, higher-quality weldings with better aesthetics. MIG welding with a shielding gas provides better control over the welding process, reducing spatter. It is also suitable for a wide range of materials, including steel, stainless steel, and aluminium. Gasless MIG welding on the other hand is primarily used for welding steel and is less common for other metals.
You may need a welding fume extraction solution for both gas and gasless MIG welding depending on the application. However, gasless flux-cored welding produces more welding fumes which can cause serious health issues.
Types of Shielding Gases for MIG Welders
We can supply different types of shielding gases for different welding applications and suitability depends on the thickness of the material you are welding.
Shielding gases for MIG (MAG) welding Mild Steel: ARCAL Force, ARCAL Speed, Migweld 5, Migweld 8, Migweld Universal, Migweld 22, Migweld 20 and Carbon Dioxide.
Shielding gases MIG (MAG) welding Stainless Steel: ARCAL Chrome, Ar/Ox (98% Ar & 2% O2), Heliweld 8, Heliweld 9, and Migweld 2.
Shielding gases for MIG welding Aluminium: ARCAL Prime, Heliweld 6, Heliweld 5, and Heliweld 2.
See here for a list of our recommended welding gases depending on your welding process and the material/thickness you're welding. You can buy these mig welding gases from our parent company Energas. Download our gas selector guide to help you choose the right gas for your MIG welding.
Engweld also supplies a wide range of gas regulators, including single-stage, multi-stage nevoc, and high-pressure gas regulators.
MIG Welder Consumables
Engweld supplies all consumables for MIG welders, including MIG Torches, MIG Torch Spares, and MIG Welding Wires. There are also different types of MIG welding wires available. These include Mild Steel, Stainless Steel, Aluminium & Copper, Flux Cored Wires, Hardfacing & Specialist MIG wires, and Mini MIG wire reels.
We also stock a vast range of other products to get you started with MIG welding. See MIG Welding Gloves, Welding Helmets, Welding Jackets, and Welding Frame, Screens and Curtains.
MIG Welder Maintenance Tips
There are several small things you can do to maintain your MIG welding machine. Follow the manufacturer's instructions to clean and maintain the machine, including the wire feeder, MIG torch, and power source.
Use the right wire size and type for welding. Ensure the wire is clean and rust-free. It is also important to use the correct gas for the material you are welding and make sure the gas is clean and free of moisture.
Use the right voltage and amperage for the welding application. Some MIG machines have the feature to save these settings. To state the obvious, keep your welding machine clean after each use and remove dirt, dust, and debris and make sure the air vents are not blocked.
When your machine is not in use, store it properly in a dry, clean, and well-ventilated area. Ensure it remains covered when not in operation.
Everything to know about Warranty
Like any product, you should make sure that if there is an issue with your MIG welder and if it is under warranty you will get the aftercare you need. When you choose to buy from Engweld, you can rest assured that your equipment will be well looked after if any problems arise. Our branches have full service & repair facilities and we even offer on-site visits to get it fixed.
Technical advice and on-site demonstrations are available from all our sales centers around the UK. Engweld also provides full service and repair facilities to provide rapid response to breakdowns. Please contact us if you have any questions or need expert advice on choosing the right MIG welder for your project.
Check out MIG Welding FAQs to learn more.