First, the most important on best welding machines
- Welding machines are necessary equipment to connect one metal to another. These connections need to be very durable and reliable since on most occasions they cannot be separated at all.
- There are several different technologies in welding machines: Inversion and Transformation, MIG and TIG are the most common. They all have their peculiarities and will be better explained in the course of the text.
- It is very important that you never operate a welding machine without the necessary protection. Avoid accidents and follow all safety guidelines!
Top 5 welding machines
Inverter Welding Machine 180A MMA Terra
This is a welding machine that works by inversion, that is, it is quite modern and technological. Accompanies some necessary accessories such as a mask with visor, positive cable, cable with negative claw and steel brush.
The regulation range is from 20 to 180 A and the duty cycle is 180A @ 60 % and 140A @ 60 %. Ideal for welding stainless steel, carbon steel, copper and ferrous metals in general.
Mini USK 230 Inverter Welding Machine
A small and portable machine, weighing only 2.3 kg and capable of producing great services. These are the main highlights of this USK model, which also has a two-year warranty.
The duty cycle is 101A @ 100 % / 130A @ 60 %. It comes with a shoulder strap, an electrode holder, a working claw, a welding shield, and a steel brush. The electrodes are for iron, stainless steel, and aluminum.
Vulcan 250A Transforming Welding Machine
Welding machine that works by transformation, not an inversion. It has a mobile core that is responsible for controlling the output current. Works with maximum duty cycle at 140A @ 60 %.
Its recommendation is for use in low and medium carbon steels, stainless steel, hard steel, and cast iron. The current range can range from 50A to 250A and the weight of the complete machine reaches 20.5 kg.
Welding Machine Mig 150BR V8
The technology of this model is MIG (Metal Inert Gas). It has six different power stages, is relatively portable and lightweight.
Supports wire rolls up to 1 kg without the need for changes. Its duty cycle is 130A @ 10 %, 90A @ 20 %, 55A @ 60 %. The weight is 18 kg and is recommended mainly for professional use, as it requires some practice.
Welding Machine Buying Guide
How to understand what are all the technologies that involve a welding machine? The technical specifications, the best way to use, the differences between each model? We will explain now!
You will feel much safer to make your purchase and use a welding machine after reading our Buying Guide.
What is a welding machine?
Welding is the process that securely and permanently joins two pieces of metal together.
It is not only used with iron, steel, aluminum, and other more industrial metals but even with gold and silver in the process of making jewelry, for example.
The welding machine, therefore, is the tool that can carry out this process with precision. Since most of the things that need metals to be joined in order to work cannot break at any time, welding must be done very well, without future risks.
How to use the welding machine?
In order to use a welding machine efficiently, a few steps are necessary. Check out:
- The first step is to clean both parts thoroughly. Any type of dirt can impair the quality of the welding. Therefore, machines usually come with a brush or special sandpaper.
- Then, it is necessary to heat the soldering iron until it reaches the temperature necessary to melt the solder.
- When this happens, spread the solder over the surfaces and use the machine until it is melted.
- Finally, join the desired parts. We have a solder!
Welding inverter or transformer?
There are two main technologies applied to welder machines: inversion and transformation. The first is much more modern and technological than the second.
Transformation welding machines are made with a core coated with copper coils. They work by alternating current. Due to the type of electrodes, there are several limitations to the efficiency of operation.
More recently invented, inversion machines have electronic circuits that adjust current and voltage as needed. They work faster and use less electricity.
What to consider when buying a welding machine
We have already talked about the many technologies used in welding machines. But that is not all! There are a few more factors that need to be taken into account in order to know which model is ideal. We list some of these criteria below:
- Size and Weight
- Ease of Use
- Extra equipment
We will explain each one in more detail, that way you will be ready to make the best purchase.
There is a good part of welding machines that have a volt system. However, when this is not the case, pay attention if the operation is 110 or 220 volts. This can prevent a number of headaches.
A 220-volt machine will not work in a location that is predominantly 110. And a 110-volt machine will burn in a 220 location. Never forget to note the voltage of your city and the machine you want to purchase!
Dimensions and weight
Some welding machines can be very heavy, even exceeding 30 kg. If you need to transport it frequently, this can be a prominent factor. Remember that there are even portable options, much lighter.
The same goes for size. Storing very large machines can be tricky. If the idea is to use it in a company, there are no problems, but for personal repairs, the smaller the model, the better the fit with the home environment.
Ease of use
If you are a beginner in the welding world, choose a simple and intuitive model. It has buttons and levers for choosing the chain, clear instructions and smooth application of the soldering iron on the desired surfaces.
As we have already pointed out, welding machines need extra equipment. In addition to various items needed for protection, such as glasses, aprons, and masks, there are also others such as cleaning pads and special electrodes.
Check everything that comes with the welding machine of your choice. If it has a lower price but does not come with the necessary equipment, it may not pay off. A complete model, with all the protection and cleaning items, can be more practical and economical.