The inverter welder is the device that revolutionized conventional welding. Welding is a fairly common activity both at a professional and amateur level, therefore not only in the construction field but also in the do-it-yourself.

Like most tools, welding tools have also evolved to satisfy a growing and increasingly heterogeneous audience. Many doubts have arisen regarding the reliability of this type of welding machine following its launch on the market.

This fact should not surprise us, technological innovations are always accompanied by many doubts. However, over time, the inverter welder has managed to conquer everyone, establishing itself as a reliable and effective machine.

Right below we had selected the best inverter welders that are present below.

RANK NO. 1
DEKOPRO 110/220V MMA Welder,160A ARC Welder Machine IGBT Digital Display LCD Hot...
  • ★Advanced IGBT Inverter Technology:Powerful welder capable of welding mild steel, weld steel, stainless steel and cast iron....
  • ★Professional ETL Certificate:The welding machine has ETL certificate for added safety. Each MMA welder device undergoes a...
  • ★Portable Design:This welder features a easy carrying handle,compact design, easy for translation and storage. Very convenient,...
  • ★Energy Efficient:Reduce the damage of Copper and Iron,obviously increase the welding frequency,and energy-conserving result is...
  • ★Multi Use: The MMA welder is suitable for welding stainless steel, mild steel, aluminum and other metal materials
SaleRANK NO. 2
Miller Electric Stick Welder,Thunderbolt Series, Black, Width 7.125 in Height...
  • Country of Origin : United States
  • Package dimensions : 15.6" L x 13.2" W x 13.3" H
  • Package weight : 22.9 Lbs
  • Package quantity :1
RANK NO. 3
ARC Welder, 200Amp 110V Welding Machine IGBT Inverter Welder With LCD Display,...
  • 🛡️【Simple To Operate】Intelligent AC-DC Welding Machine,Just Need Use One Button, Very Simple To Operate This Mini...
  • 🛡️【Advanced IGBT Inverter Technology】Powerful Welder Capable Of Welding Mild Steel,Weld Steel, Stainless Steel And Cast...
  • 🛡️【Multi Use】The MMA Welder Is Suitable For Welding Stainless Steel, Mild Steel, Aluminum And Other Metal Materials
  • 🛡️【Energy Efficient】Reduce The Damage Of Copper And Iron,Obviously Increase The Welding Frequency,And Energy-Conserving...
  • 🛡️【Leading Control Mode】Closed Loop Feedback Control,The Output Voltage Is Stable,Strong Adaptability For Electricity...
RANK NO. 4
250A 110/220V Stick Welder ARC Welding Machine DC Inverter Welder Dual Voltage...
  • 🛡️【Latest Model】Allows Connection To 120 Or 230V Receptacles.120V / 230V input current at rated 200A/250A.250Amp IGBT...
  • 🛡️【Energy Saving King】Can Handle E6011/6013/6014/7018 and E6010....Welding Stainless Steel, Mild Steel And Other Metal...
  • 🛡️【Portable Design】Equipped With Smart Digtal Display And Alarm LED,Read The Output Welding Current. Portable Carry With...
SaleRANK NO. 5
Weldpro 200 Amp Inverter Multi Process Welder with 3 Year Warranty Dual Voltage...
  • Weldpro's flagship 200 amp MIG welder that goes beyond MIG and Flux Core welding! AND 3 YEAR WARRANTY!
  • The model 200 is also capable of true lift TIG welding (without foot pedal) as well as stick welding and aluminum welding with the...
  • MIG,Stick or TIG weld all from a single compact, space-saving unit. Welding Amperage Ranges230V: MIG: 40-200A; MMA: 40-200A; TIG:...
  • MIG welding wire diameter: .023 .030 .035, welding thickness: 19ga- 0.197 in; TIG tungsten needle diameter: 0.063 0.094, welding...
  • Dual digital display easy to read and set amperage and wire speed for repeatable welds every time. VRD high temp and overload...
SaleRANK NO. 6
Weldpro Digital TIG 200GD AC DC 200 Amp Tig/Stick Welder with Pulse CK 17...
  • Weldpro's flagship 200 amp AC/DC TIG welder that goes beyond simply welding steel and aluminum. AND NOW WITH A FULL 3 YEAR...
  • The model 200 is also a digital designed TIG welder equipped with full function TIG welding features found on machines priced much...
  • Start and end amps, upslope, downslope, fully adjustable pulse, AC balance, AC frequency. 2T-4T
  • Excellent Professional design rocker style foot pedal without annoying intermediate amperage control. And now available with the...
  • Also fully capable MMA stick welding function with stinger included.
RANK NO. 7
Weldpro 200 Amp LCD Inverter 5 in 1 Multi Process Welder 3 Year Warranty Dual...
  • Weldpro's flagship 200 amp multi function MIG welder with LCD display. Now with exciting new added features and easy access menus...
  • The model 210 LCD is also capable of true lift TIG welding (Foot pedal can not be used on this model) as well as stick welding and...
  • MIG, Stick or Lift TIG (*Foot pedal can not be used on this model) welding all from a single compact, space-saving unit. Welding...
  • Added new features include in MIG Mode, Run-In, Spot Weld, Gas Choice, Synergic or Full Manual controls, on screen polarity...
  • Color LCD display easy to read and set amperage and wire speed for repeatable welds every time. VRD high temp and overload...
SaleRANK NO. 8
MIG155GSV 155 AMP INVERTER MIG/STICK ARC WELDER WITH DUAL VOLTAGE 220V/110V...
  • Compact – portable – very capable quality welder that can run on either 110/115 or 220/230 volts which makes this a true...
  • Working voltage: 115V/230±15%; 30 to 155 Amp welding range; In MMA mode, this welder can be used as a very nice scratch arc TIG...
  • Comfortably welds up to 1/4 in. mild steel that is properly prepared using 220 volt input, in both MIG, flux-cored and stick...
  • This model uses an advanced compact IGBT inverter design with automatic overheat and over current welding protection.
  • The model 155 incorporates 2T/4T modes. 4T is useful if you have a long weld to do, as it saves you having to hold the trigger...
SaleRANK NO. 9
HONE Stick Welder, 110V/220V Actual 140Amp ARC Welder Machine, IGBT Inverter...
  • ➠【Digital IGBT Inverter Technology】This ARC Welder come with advaced unique IGBT control mode improves the reliability of...
  • ➠【Suitable for Series Welding Rod】The Welder has amazing hot-start, is ideal for the rods AWS E6013 E7018 E6011 of...
  • ➠【Safe and Stable】This Welding Machine has Anti-stick function easy the electrode removal from the workpiece, and...
  • ➠【Easy to Operate and Portable Design】The Soldadora inverter 110V 220V equiped with digital display and trouble indicate,...
  • ➠【1 Year Warranty】HONE Welder offers good warranty. If you meet any problem when using this arc welder, please feel freely...
RANK NO. 10
HITBOX HF 2 in 1 TIG ARC Welder 200Amp, 110V/220V Dual Voltage TIG/ARC Welding...
  • 【Dual Voltage TIG / ARC Welder】 110V/220V 2 in 1 HITBOX welding machine, used as TIG welder or ARC MMA stick welder.The...
  • 【IGBT Inverter】This Tig welder also uses an advanced compact IGBT inverter, designed with automatic overheat and over current...
  • 【2T & 4T Functions】2T(Manual) / 4T(Semi-auto) switch is available, you can release your finger for long time welding job when...
  • 【Powerful Welding Application】TIG welding thickness 0.3-5.0mm, application of Tungsten electrodes diameter:...
  • 【Buy With Confidence】HITBOX offers good after-sales service. If the machine can not work or have other problem when working,...
RANK NO. 11
TOOLIOM 135A 110V/220V Stick Welder MMA ARC Welder Machine DC Inverter Welder...
  • Can handle E6010 cellulose electrode, adopting IGBT Inverter power system,suitable for mild steel, cast iron, stainless steel as...
  • Equipped with digital display and trouble indicate,read the output welding current.
  • Built-in excellent anti-stick, arc force, hot start and other functions,easy to operate,safe and convenient for beginner.
  • Portable: With adjustable shoulder strap,is convenient to carry between job sites or use.
  • Dual voltage input design: Support 110V & 220V input voltage

Buying Guide to Select the Best Inverter Welders

Before purchasing tools, it is very important to understand what they are, how they work, and what types of variants exist. This will help you identify the product that best suits your needs. For this reason, in our article, we will try to clarify the most frequent doubts and questions regarding this type of tool.

What Are Inverter Welding Machines?

Inverter welders are relatively new and innovative welding tools that have numerous advantages, still unknown to many people, compared to conventional models.  Among the main advantages of inverter welding machines, we find their compact dimensions, which make them easily transportable, even inside a light carrying case.

They use much smaller transformers and consequently weigh less. This is one of the main differences with conventional welders, notoriously robust, and not suitable for confined spaces.

What Are the Most Used Welding Processes Nowadays?

Throughout history, various welding processes have been used and refined. As always, some are more popular and appreciated and are therefore more used than others. The four most well-known welding processes are MMA, MIG, TIG, and FCAW welding.

  • MMA or Electrode Welding: (also known as SMAW welding for its abbreviation in English) uses a metal electrode coated with a filler metal to be able to weld the original material.
  • Mig Welding : (also known as GMAW welding for its abbreviation in English) it uses a wire welding electrode on a coil that automatically feeds at a pre-set constant speed.
  • Tig Welding: (also known as GTAW welding for its abbreviation in English) is an arc welding process that uses a non-fusible tungsten electrode.
  • Flaw Welding with Cored Wire: Similar to MIG welding in that it uses a wire feeding process. This type of welding, however, unlike the MIG case, does not require an external protection gas.

What Dangers Are Related to Welding?

The welding activity can present various dangers, both for those who are performing the welding and for those who are nearby. Therefore, it is important to know not only the risks and dangers related to this activity but also the safety measures to be adopted (which we talk about in the next paragraph). Let’s see the dangers together:

  1. Electrical Discharge: This is the most serious danger due to welding, it can cause serious and even fatal injuries, both by direct discharge and in the event of a fall from above after receiving a discharge. Touching part of the welding circuit or electrode while touching the metal being welded, there is also a risk of a secondary electric shock.
  2. Risks Related to Noise Pollution: When we perform welding, we expose ourselves to loud and prolonged noises. Noises with more than 85 dB (decibel) are considered loud, and welding activities such as flame cutting and arcing can produce noises with more than 100 dB. Exposing yourself regularly to loud noises can cause permanent hearing loss.
  3. Uv and Ir Exposure: Exposing yourself without personal protective equipment (PPE) or other types of protection to the intense UV light that is produced during welding activities can cause corneal burns. The severity of the injury depends on the distance, the duration of exposure, and the angle of penetration. Long-term exposure to arc flashes can also contribute to cataracts and vision loss.
  4. Exposure to Fumes and Gases: Welding exposes the welder to invisible gases that can easily penetrate the lungs, including ozone, nitrogen oxides, chromium and nickel oxides, and carbon monoxide. Depending on the gas or smoke, concentration, and duration of exposure, the damage caused can be more or less serious.
  5. Burns: The combination of high-temperature welding arcs, UV rays, and molten metal can cause severe burns during welding. These burns can affect the skin or eyes and can be very serious.

What Safety Measures Are Needed to Use an Inverter Welder?

We know that when using this type of equipment inadequately or without using the necessary precautions, problems can occur that put our lives at risk.

It will be really important to use personal protective equipment (PPE). If we have a superior who assigns us jobs involving welding, he will be obliged to provide us with:

  • Welding helmet or mask with side shields: to protect us from UV radiation, particles, debris, hot slag, and chemical burns.
  • Flame retardant hood: to be worn under the helmet to protect the back of the head.
  • Respirators: protect us from the fumes and oxides that the welding releases. The respirator must be suitable for the type of work we are carrying out.
  • Flame retardant clothing: to protect us from heat, fire, and radiation from the welding process and to prevent burns.
  • Fire-resistant ear protection and earmuffs
  • Fire-resistant ankle boots and gloves: safety ankle boots with a rubber sole and steel toe protect us from electric shock, heat, fire, burns, and falling objects.
  • Remember to forbid children from approaching the welding area.

In addition to these individual measures, it is important to have received adequate training and make sure that there are no flammable materials in our workspace. All operations (device preparation, welding, maintenance, repair) must be carried out by qualified personnel.

What Are the Pros and Cons of An Inverter Welder?

Although some people still have doubts about the veracity of the advantages attributed to inverter welding machines compared to traditional ones, these innovative models have become very popular among users thanks to their characteristics. In this table we see the main ones:

Advantages
  • Small, compact and portable
  • Sophisticated and lightweight silicon transformer
  • It uses an IGBT transistor for insulating gate capable of performing high volume soldering
  • They consume less energy
  • They use normal household connectors
  • They operate with lower voltage
  • Electronically adjustable output power
  • They allow you to adjust the power in a wide range
Disadvantages
  • Maintenance is more expensive
  • They have a more complex structure
  • They are equipped with multiple electronic components

Type of Process (technology)

The first criterion to consider is the type of welding we want to perform. That is, first of all, we must define what type of process we will use, on what materials we will work, and under what conditions.

These factors will depend on the choice of technology and, consequently, of the welder to buy. Consider the characteristics of each welding process to make your choice. The cheaper inverter welders are generally designed to use MMA or electrode welding technology.

However, depending on the range, the manufacturer, and the quality of the device in question, there are models that can work with more than one technology. Logically, these are more expensive machines.

Adjustable Amperage and Power Levels

The amperage with which the welder works will determine the power with which the machine works. Generally, the higher the power and the better the performance, even if this is not always the case. The inverter welding machines have an amperage of between 100 A and 250 A.

The amperage affects the adjustable power levels. The inverter welding machines are normally equipped with a minimum amperage with which they can work, which can oscillate from 10 A up to the maximum amperage supported by the machine.

If you have to work at different intensities and levels, it is better to look for a machine with a wide range, say from 20 A to 200 A, for example.

Working Cycle

The work cycle is a very important technical feature: it defines the number of minutes, within a period of 10 minutes, during which a welding machine can produce welding current safely. So a 140 A welder with a 60% duty cycle must “rest” for at least 4 minutes after 6 minutes of continuous welding.

Look carefully at the specifications of the welder you are thinking of purchasing. Many manufacturers of welding machines identify the different models based on their maximum ability to generate energy but are careful because often the machine in question can only produce that level of energy for a short period of time. For this, always try to check the work cycle.

Diameter and Type of Electrode

The electrode establishes the arc, protects the molten material, and, by wearing out, joins the molten material of the base metal, making the weld. On the market there are electrodes with standardized diameters, the most common is 1.6 mm, 2.0 mm, 2.5 mm, 3.25 mm, 4.0 mm, and 5 mm.

A welding machine that allows you to use a wide range of these diameters will guarantee greater versatility. As regards the different types of electrodes, there are for example rutile, basic, cellulose, antioxidant, and bronze electrodes.

Some welders work only with certain types of electrodes, obviously, a machine that supports different types will be more convenient and more versatile. The electrodes can be further classified according to the materials to be welded.

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