MIG Torches & Spool Guns

A MIG torch is a welding device that uses metal inert gas (MIG) to join two pieces of metal together. The process is quite simple and involves using a gun-like device that feeds wire through the flame and then onto the work piece, producing a weld.

A spool gun is an extension of this process and uses special spools of wire which feed into the MIG torch at higher speeds, allowing for larger jobs to be completed more quickly. Both are commonly used in both home and professional welding applications.

A burn back on a MIG welding torch is caused by improper adjustment of the electrical current, feed speed and gas flow during welding. If the electrical current is too low, the wire will not melt into the weld puddle quickly enough, resulting in a build-up of material at the end of the torch and a “burn back”.

Similarly, if the feed speed is too high or the gas flow is insufficient, it can cause a buildup of material at the end of the torch, resulting in a burn back. To prevent this from happening, it’s important to adjust your machine’s settings correctly before beginning to weld.

Yes, the amperage on your MIG torch and spool gun can typically be easily adjusted. On most units, you’ll have an amperage control dial which allows you to adjust the flow of current for a range of weld settings.

It’s important to note that you should always check the manufacturer’s instructions and safety guidelines when adjusting these settings as exceeding the recommended maximum may put you at risk of injury or damage to your equipment.

Yes, a spool gun is required when using aluminium wire. This is because aluminium tends to be much softer and more malleable than steel or other metals, so it can easily get jammed in the main feeder.

A spool gun helps keep the wire from tangling and reduces the risk of breakage. Additionally, a spool gun allows for better control over the flow of wire, which can make welding with aluminium easier.

The output current of a MIG torch and spool gun should be determined based on the size and amount of material you will be working with. Generally speaking, the higher the output current, the larger and thicker materials you can weld effectively.

Yes, there are special techniques needed when using a MIG torch. The most important technique is to always make sure your torch is of the correct size and shape for the job. You should also practice arc welding in a safe environment before beginning any real welding project.

Additionally, you should be aware of necessary safety precautions like wearing welding helmets and protective clothing to protect yourself from heat burns and fumes. Finally, it’s important to control the heat output by adjusting the voltage, wire speed, and amperage indicated on your machine.