MIG Welding Machines

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What I need to consider when buying a MIG Welding machine.

When purchasing a MIG welder it is vital to seek professional advice, and this is exactly what we offer at AES. The MIG welding process has advanced significantly of recent years, and there are many welding jobs, especially on stainless steel and aluminium, where optimum welding results could only be achieved by TIG welding, but now can be achieved with the latest technology in MIG welding machines with synergic control and digital technology.

The first consideration when buying a MIG welder is does it have sufficient duty cycle at the amperage that I require. For example, I may be wanting to weld 3 - 5mm thick material on a continual basis, so could be looking for a MIG welder with say 150 - 200 amps capacity. As soon as I start to search the internet for a 200 MIG welder, it will be full of companies selling these type of machines. However as soon we start to look into the duty cycle of some of these machines we then get a very different story.

What does duty cycle mean?

With a quality Welding machine manufactured to the latest European standards, duty cycles are usually measured out of 10 minutes. So if for example, a MIG welder is 60% duty cycle at 200 amps, this means that at a given temperature, you could weld at 200 amps for six minutes, the machine would have to then cool down for the remaining four minutes of the ten minute duty cycle before you can then weld again. MIG welding machines that are supplied from AES are usually fitted with thermal overload protection, so that if you exceed the duty cycle the machine will cut out to stop it from over-heating, thus protection the life of the welding machine long term.

What type of technology do I need to invest in when buying a MIG welding machine

There is a lot of choice now of technology now available to any company wanting to buy a MIG welder, and it is very important that the correct technical advice is given to anyone wanting to invest in the correct machine. For many years, the only technology available in MIG welders was the traditional step voltage MIG welding machine with a standard rectifier transformer.

What is the difference between step voltage control and a synergic MIG Welder?

With traditional step voltage control on a MIG welding machine, there would typically be twenty to thirty step voltage settings on the front of the welding machine, and the welding would then have to continually manually adjust the wire feed speed until it is correct for that set voltage output. The benefit of synergic control on a MIG welder is that the voltage is infinitely variable, and not only that, but the machine automatically chooses the optimum wire feed speed for that particular voltage. This optimum setting for every voltage and amperage is often referred to as the synergic curve. This makes setting up a MIG welder considerable more simple, enabling optimum results much more quickly. However having said all this, many welders still prefer the traditional method of setting up a welding machine, adjusting the voltage and amperage independently, this is mainly because welders all like to weld differently, and many welders feel that synergic MIG welders do not offer them enough control over their welding parameters on the machine to get the results they need.

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Company number: 07988136 Registered Office: Olympic House Collett, Southmead Park, Didcot, Oxon, England, OX11 7WB

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