What is an electronic welder? Things to know about electronic welding machines

Electronic welding machine 1

The current electronic welding machine is one of the indispensable pieces of equipment in the electronic welding process. So what is an electronic welding machine? How many types of welding machines are commonly used? What are the common mistakes made when using welding machines, and how do you fix them? Follow the article below to get the answer!

What is an electronic welding machine?

An electronic welding machine is a device that uses IGBT inverter technology to convert DC power to a higher frequency and then uses pulse technology to reduce rectifier voltage. That technique will create a DC current with a large capacity to help stabilize the welding arc and melt the welding rod quickly. In addition, it also has the effect of regulating the current and increasing the smoothness of the arc.

The current types of electric welding machines are designed for compact size, so they are easy to move and handle. In particular, the machine consumes less energy, so it will not consume much electricity when used. Moreover, the use of an electric welding machine while welding will help the weld become more beautiful, clear, and precise, limiting errors.

Electronic welding machine 1

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Classification of Electronic Welding Machines

Electronic welding machines can be classified based on various criteria. Below are some common criteria for classifying electronic welding machines:

Welding type

  • TIG Welding Machine (Tungsten Inert Gas): Uses a tungsten electrode with a low-temperature melting point to weld.
  • MIG Welding Machine (Metal Inert Gas): Uses an automatically fed wire electrode for welding.
  • ARC/Manual Metal Arc (MMA) Welding Machine: Uses a coated metal electrode for welding.
  • Plasma Welding Machine: Uses a plasma welding torch to weld plastic and metal materials.

Electronic welding machine 2

Type of Control

  • Semi-automatic Electronic Welding Machine: The machine is configured and controlled by a microcontroller, allowing automatic welding based on pre-stored programs.
  • Manual Electronic Welding Machine: The welding machine is manually controlled by the user.

Power Output

  • Industrial Electronic Welding Machine: Has high power output, suitable for continuous welding work and industrial applications.
  • Household Electronic Welding Machine: Has lower power output, suitable for small welding tasks at home or for hobbyist use.


  • Low-Power Electronic Welding Machine: Used for light and intermittent welding tasks.
  • High-Power Electronic Welding Machine: Used for continuous welding work and heavy-duty applications.

These are some common criteria for classifying electronic welding machines. Depending on the specific purpose and requirements, users can choose the most suitable type of electronic welding machine.

Electronic welding machine 3

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Common Errors When Repairing Electronic Welding Machines

Unstable power supply

This error may stem from the weak fan blade of the machine, causing the fan to spin slowly or not at all. Alternatively, it could be due to loose power connections resulting in an unstable power supply. To address this, check the electrical connections and verify the power source.

Automatic shutdown or failure to weld

This issue could be caused by a faulty power supply or prolonged non-use or lack of maintenance of the machine, leading to overloading. Additionally, check if the power module is burnt out or damaged. To resolve this, it is best to contact a technical specialist to determine the exact cause and conduct prompt repairs.

Weak electronic welding machine

A weak electronic welding machine can be attributed to several factors such as incorrect welding power adjustment, using a small welding wire, poor conductivity, power supply voltage below 20%, or insufficient welding voltage. To identify the specific cause of the machine’s weakness, it is advisable to contact a repair technician for a thorough inspection.

Electronic welding machine 4

Electricity is too strong

This issue can be caused by one of the following reasons:

  • Incorrect voltage adjustment – Fix this by turning the dial counterclockwise.
  • Input voltage is too high – Correct this by readjusting the voltage.
  • Using a welding machine with excessive power, while the output current is greater than the required welding current – The solution is to choose a welding machine with lower power.

Electronic welding machine makes loud noises

This phenomenon is due to loose parts of the machine, so you need to tighten them. If the machine is making loud noises due to impacts, it should be promptly taken for repairs.

Touching the electronic welding machine causes an electric shock

The main reason for the electric leakage of the welding machine is moisture and dust. In this case, you need to dry the machine and clean the dust. Additionally, check the wiring connections; if you notice any contact with the casing or improper hook-ups, rewire them. However, if you find any internal short-circuit, take it for warranty repairs.

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Above is the answer to the question “What is an electronic welding machine?” We also provide some more information related to electronic welding machines, including types of welding machines, common errors when using welding machines, and how to repair them. If you have any further questions, do not hesitate to contact the prestigious Thetech distributor of soldering materials and electronic components!

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