The times when huge welding transformers “ruled the show” are irrevocably a thing of the past and welding at home has become not a luxury, but an everyday task for the master. Thanks to the emergence of innovative technologies, a compact and functional welding inverter with PFC (power factor correction module) has become more common among home craftsmen. In the material presented, we will reveal why the choice falls on welders with PFC and what their advantages are.
Advantages of welding inverters equipped with a PFC module
On professional forums, electrical engineering specialists argue until they are hoarse about the advantages of active and passive power correctors in devices and their ability to minimize electricity losses during its transmission from the power source. However, a practitioner is of little interest in theoretical jungle; it is enough for him to know that from a practical point of view, welding inverters that have a PFC function (PFC, power factor correction) have practically another additional voltage stabilizer at the input, so such a device is capable of:
- Use a significantly lower amount of current consumption without reducing the maximum welding current;
- Work on ultra-low voltage (drained networks), as well as when it changes abruptly. In this case, the range of voltage values in the network can fluctuate quite significantly (from 90 to 240V);
- Work when connected via an extended portable cable;
- Work with gasoline or diesel generators, because a machine with a PFC does not load them like a regular welder.
The figure shows the current-voltage characteristic with and without the PFC module. A conventional inverter (without PFC) takes peak values from the network, shown by the red line, and with the PFC module, consumption is transferred to a smooth sine wave, due to this there is no load on the network.
Along with this, the efficiency of the device increases sharply, reaching at least 85%. Correction of the PFC power factor allows you to achieve the highest possible power factor (up to 99.9% ideally), while no more than 1% of the total inverter power is spent on heating the conductors!
What to choose? Household inverters with PFC function
It should be noted that the cost of a PFC inverter with an active type of power factor control is, of course, slightly higher than that of conventional switching power supplies with a transformerless input, this especially affects the price of household models. Therefore, when purchasing a device, it is necessary to clearly outline its planned scope of activity.
Budget options for inverters are suitable if welding work will be performed only occasionally, and the material being welded will be simple steel. You should not think that such devices are completely primitive, for example, the welding inverter Svarog 160 PFC, despite its reasonable price, is capable of:
- Operate from a network with a voltage of 160-240V, that is, high-quality work with electrodes with a diameter of up to 3 mm is possible even with a significant voltage drop;
- Especially for amateurs, the device is equipped with the HOT START function, as a result of which, at the moment the electrode touches the welding workpiece, the value of the welding current briefly pulses, due to which the arc is ignited;
However, it will not be possible to weld aluminum using such equipment, since it is intended for welding work with direct current. Welders who work on this device praise its reliability, but among the many advantages they sometimes note a small drawback: difficult ignition of some brands of electrodes, and in particular UONI 13/55, but basically this inverter is enough for most household tasks.
If you are ready to spend money on functionality, be sure to pay attention to the Gysmi E200 PFC model. In addition to all the advantages of an inverter with a PFC, this device is equipped with an automatic arc extinction function, which allows you to complete a weld without defects such as cracks and a welding crater (deepening). The device can easily be reconfigured to the argon arc welding mode with a non-consumable electrode and the maximum welding current threshold is slightly higher than that of the model from the Svarog brand.
An Italian-made inverter falls into a slightly more expensive price range. Not only does the manufacturer allow the connection of extension “carries” up to 50 m long to the device, but he also prudently equipped the device with a reinforced housing. And most importantly, synergetic adjustment allows you to accurately adhere to a certain arc length; you just need to set the data on the thickness of the material. The Active 187 MV PFC model allows you to work not only with ferrous metal, but also with stainless and high-alloy steel, since it can also weld in an inert gas environment. When purchasing it, you can use any types of electrodes (including those with rutile and cellulose coating).
If you are a professional...
Industrial welding machines are capable of operating without failures or breakdowns in the most difficult conditions. Of course, they can hardly be called compact, because the weight of this equipment starts from 20 kg and you have to use a special cart to move the inverter around the facility.
The American company Lincoln Electric produces one of the most functional inverters - the Lincoln Electric Invertec 300TPX model, which has several argon arc welding modes and allows you to work with various metals. Innovative software allows, after determining the settings, to perform work in a semi-automatic mode. Low energy consumption and reduced energy dissipation in power cables are ensured by the PFC unit, and the low percentage of CO 2 emissions during the welding process allows us to call this device “environmentally friendly”.
There is an opinion that can be considered an axiom for home craftsmen: “Strive to choose the best possible offer.” And if previously the only possible option was a transformer welding machine, which practically did not work at low network voltage, now you have the opportunity to have an unprecedented choice among inverters. They are superior to outdated models in many respects. This includes mobility, light weight, and the ability to carry out welding in field conditions when the network voltage is of very low quality. In this article we present the 15 best welding inverters for home and garden in the price category from 7,000 to 75,000 rubles. All prices are taken from Yandex Market.
Main characteristics of welding inverters:
- Power (rated welding current). This characteristic is indicated in the passport for the device. The rated welding current is the value A at which the inverter (taking into account the recommended load duration, PN%) will operate without shutting down due to overheating. Considering the conditions of the required operation, for example, a rated current of 120A is required, you should choose a device with a rated current of 180A, i.e. Allow a current reserve of about 50%. This will allow you to carry out welding work when the input network voltage is critically reduced and when using cables with a length of over 5 meters.
- Load duration (LO). Characterizes the operation of the welding inverter in intermittent mode.
- Supply voltage range. If the mains voltage has significant deviations from the nominal value, and this often happens outside the city and in holiday villages, then it is considered unstable and you should purchase devices that can operate with voltage surges of 20-30%.
- Additional characteristics that ensure ease of use of the equipment:
- ARC FORCE (arc afterburner) - arc stabilization;
- HOT START (hot start) - provides simple arc ignition by increasing current loads during start;
- ANTI STICK (anti-stick) - turns off the device in the event of a short circuit, avoiding sticking of the electrode.
TOP 5 affordable welding inverters for beginners
The price of the device decides a lot. And if it is possible to purchase an inverter with good characteristics and at an affordable price, then the choice is obvious.
1. Interskol ISA-160/7.1 - from 7578 rubles
Interskol ISA-160/7.1 is chosen based on its ability to work with extremely unstable voltage. Even when the network indicators drop to 150V, it is possible to maintain a stable arc on the electrode up to 3 mm. The inverter is “unpretentious”, mobile, easy to use. The equipment comes with a portable shoulder strap, which is convenient when working at heights. At ambient temperatures up to 250C, the device does not overheat and allows you to work without interruption. The only thing you will have to spend a little more money on is buying a ground cable attachment and long wires.
2. Resanta SAI-220 - 7992 rubles
The main advantages of the Resanta SAI-220 inverter, according to user reviews, are small dimensions and light weight, absence of plastic parts, reliable operation at low input voltage. The inverter is equipped with an automatic circuit breaker at the input, which avoids damage to weak wiring if it is necessary to carry out welding work in a suburban area.
Among the shortcomings, owners point to the unreliable material of the cooling fan. If debris gets on its blades, the part may be completely damaged. Users also don’t like the light stroke of the stroke adjustment handle; the settings can get lost when moving the device or accidentally touching it.
3. Svarog EASY ARC 160 (Z213) - from 10,315 rubles
The Svarog EASY ARC 160 (Z213) inverter provides good quality welding seams even if the user does not have special skills. Some owners compare the ease of use of the device with a “sparkler” - “light it and go.” The compact dimensions of the equipment, low weight and mobility of the inverter are noted. This model supports TIG welding, creating an even and uniform seam. The device package includes:
- electrode holder 200 A;
- welding cable 1?16 mm?, (3 meters, 2 pcs.);
- tip OKS 10–25 (2 pcs.);
- ground terminal 200 A;
- power supply (network) cable 3?1.5 mm?, 2.5 meters.
4. Bison ZAS-190 - from 7800 rubles
Bison ZAS-190 is a Chinese-made device with the usual ordinary characteristics. It performs well at low input voltage. The warranty period is 5 years, but only applies due to manufacturing defects, which is difficult to prove. As a rule, service centers refuse warranty repairs, citing natural causes of device failure: scale, dust and moisture. The impression of the inverter is spoiled by low-voltage wires with poor PVC insulation, which loses elasticity already at +100C. The wires are supplied in aluminum and painted to match copper wiring. The fan is insufficient for cooling, with strong operating noise. The package includes:
- mask with light filter;
- working cable;
- ground cable;
- brush;
- carrying strap.
5. FUBAG IR 200 - from 10065 rubles
FUBAG IR 200 provides reliable welding at an input voltage of 150V, which is an undeniable advantage in conditions of unstable voltage in rural areas. Wide range of electrode use: from 1.6 mm to 5 mm. Very good ignition of the electrode, just touching it to the metal is enough, the arc is stable and even. Compact, light weight. Among the shortcomings are the short cables that are included in the package and a noisy cooling fan. The device requires timely cleaning from dust.
TOP 5 welding inverters in terms of price-quality ratio
In the following list we present to your attention the most convenient, according to users, welding machines in the mid-price range.
6. Kraton Smart WI-160 - from 9360 rubles
The ease of use of the Kraton Smart WI-160 inverter lies in its “unpretentiousness” to the quality of the input voltage. Even the use of a large number of extensions has almost no effect on the quality of welding. So, when the distance from the power point increases by 15 meters with a household “carrying” with a cross-section of 0.75 mm, the inverter confidently welds with an electrode with a diameter of 3 mm. The low load on the electrical networks allows you to connect the device in a summer cottage or rural area. The main advantage of the device is its good characteristics coupled with the low price of the model. The package includes:
- electrode holder with cable;
- ground clamp with cable;
- brush-hammer;
- welding mask;
- belt.
7. Resanta SAI-250K - from 10,340 rubles
Resanta SAI-250K is a high-quality device that forms an even and uniform seam. Works with cables extended to 4 meters while maintaining the original characteristics. The inverter could receive the highest rating from users, but it has a number of design features that cause criticism. Thus, the quality of the component parts leaves much to be desired: the material of the cooling fan is fragile, the cables lose their elasticity at an ambient temperature of +50C. The inverter received another criticism due to ill-conceived power regulation. When turning on the device, you should set the regulator to minimum and select the power experimentally, since there is no indicator of the current state.
8. Elitech IS 220 - from 9230 rubles
Elitech IS 220 – high power and low price relative to competitors with similar characteristics. An indispensable device when working in rural areas, in garage cooperatives and at dachas, where the quality of the input voltage is lower than existing standards. It is possible to power the inverter from a gas generator (5-6 kW), which is convenient if there is no access to household electrical networks. Does not turn off during continuous operation even with high ambient temperatures (up to 300C). As with all mid-price inverters, the manufacturer skimps on the cables included in the package - the wires are too short.
9. REDBO BLACK-204 - from 12,410 rubles
REDBO BLACK-204 is a leader in several categories at once. Firstly, it is ease of use and that is why it was included in the TOP welding inverters section. Secondly, the model holds the arc perfectly and produces a smooth, uniform weld under low voltage conditions. Thirdly, the power reserve of the device makes it possible to save electricity even when working with electrodes with a diameter of 5 mm. The reduced voltage has virtually no effect on the characteristics of the inverter, which “produces” 196A at critical network values.
10. FUBAG IN 163 - from 12236 rubles
Even professional welders note the excellent characteristics of FUBAG IN 163. You will only need one day of training to learn how to make high-quality seams on all types of metal. The model welds at a network voltage of about 190V, although the parameters indicate a limit value of 198V, it is enough just to increase the welding current. The device has upgraded surge protection. There are complaints about the short power cables and the cooling fan, which sucks dust and leaves into the device if it is placed directly on the ground. The inverter is capricious in choosing the brand of electrodes; you have to select the electrodes experimentally.
TOP 5 professional welding inverters
If the above listed inverters are quite suitable for performing simple work in a country house or suburban area, then devices in the high price range can also solve professional tasks.
11. EWM PICO 162 - from 39,269 rubles
Low voltage and network connection cables extended to 30 meters are not a hindrance for the EWM PICO 162. When other models turn on and off due to voltage sags, it welds with high quality welds without creating any inconvenience for the user. A professional single-phase machine is available for use even by people who previously knew nothing about welding by MMA and TIG with coated electrodes.
12. Kemppi Minarc-150 VRD - from 39,000 rubles
The Kemppi Minarc-150 VRD device works in almost any conditions, in the country, in an open field and in a country house. Long wires and the resistance they create do not affect the quality of welding, and in the absence of electrical networks, a generator can be used. The operating mode, thanks to the built-in automation, does not require settings or special knowledge. Withstands large voltage fluctuations and is used in workshops, as well as in open areas for equipment installation. The model has overload protection, added protection from humidity and dust. The device works with almost all types of electrodes, including cellulose ones. Can be used for TIG welding with contact arc excitation.
13. Svarog TIG 160 AC/DC (R57) - from 42,365 rubles
Svarog TIG 160 AC/DC (R57) is a semi-professional level device that clearly provides MMA (manual arc) and TIG (argon arc) welding. Along with automatic modes, it has a large number of manual adjustments, providing high-quality control of welding modes. Operates at maximum power for a long time without shutting down due to overheating. It is believed that the entire line of welding inverters from this manufacturer is the most interesting for private use in difficult field conditions and when the quality of the network voltage is insufficient.
Model equipment:
- burner TS 26 (4m);
- spare parts kit;
- welding cable 1x10 mm2, 3 meters;
- ground terminal 200A;
- terminal OKS 35-50;
- electrode 2*150.
14. Telwin Technology TIG230DC HF/LIFT+AC - from 54,719 rubles
Just listing the advantages of the Telwin TECHNOLOGY TIG 230 DC device can take up an entire page. Suffice it to say that the model is designed to work even with very thin sheets of steel without damaging them. Modern technologies make it possible to use an inverter for all types of welding (pulse TIG and manual arc MMA), and at the same time start working without much experience. The control panel contains all the necessary adjustment functions, which make it possible to change the welding current, adjust the gas supply and carry out hot ignition of the electrode.
If you live in a private house or have a dacha, a garage or other buildings near which something needs to be repaired from time to time, then it is likely that a semi-automatic welding machine will sooner or later come in handy on the farm (today inverter-type models are becoming increasingly popular) .
Similar modern devices are used for electric arc welding, and with the latest inverter models, the welding process will not seem such a difficult task to you. Let's look at the most popular types of such mechanisms, highlighting their advantages and disadvantages of use.
In the old days, some craftsmen built welding machines for home use on their own, although not everyone used them.
With the advent of inverter devices, which are capable of operating in almost all existing modes and are universal devices for connecting all types of metal, amateur craftsmen have received more opportunities regarding welding.
Despite the relatively high cost of the best inverter semi-automatic welding machines, due to their versatility they completely pay for themselves.
Important!Inverter semi-automatic devices require very careful handling and protection from dirt accumulations, because if dust settles on electronic components, this can lead to overheating of the device.
Worth paying attention and on condensation that appears on module boards at subzero temperatures: it is this that often causes breakdowns and malfunctions of such devices. For this reason, inverters stored in heated rooms and never do not use in frosty weather or in the presence of precipitation.
Operating principle and design
The inverter is based on two powerful transistors, which get very hot during operation and have a built-in radiator for cooling. It is these semiconductor components that switch the currents flowing through the pulse transformer.
Operating frequencies in this case often exceed thousands of kHz. The result is a variable high current. Transistors must be highly resistant to sudden changes in voltage, so manufacturers equip devices with protective circuits.
The design of the welding inverter is determined by three main blocks:
- input rectifier (equipped with a filter);
- inverter module;
- output rectifier equipped with a choke.
The output welding rectifier allows you to obtain direct current for welding. The design of welding converters additionally includes elements that determine the specialization of each individual device. 
For example, a welding machine for agricultural arc welding using a non-consumable electrode is additionally equipped with elements for supplying and adjusting shielding gas, a special cable, an appropriate torch and a hose.
What is an “inverter welder” in terms of its operation? First of all, this is a device that gradually converts the received electricity according to the following algorithm: industrial type of electricity 380 or 220 Volt modified using a rectifier.
All noise of a technological nature is smoothed out by filters built into the device, the stabilized energy is converted into high-frequency current (10-100 kHz), and the transformer lowers the voltage to the value necessary for stable ignition of the electrode arc.
After this, a high frequency rectifier converts the electricity into direct welding current. Each operating stage is controlled by a special transistor in feedback mode.
Microprocessor control of all technological processes inside the inverter significantly facilitates the work of the welder by introducing the functions of hot start, anti-sticking, and arc forcing.
The process itself takes place using a burning wire in a special gas environment (argon, carbon dioxide, helium) or using a cored wire without exposure to protective gases.
This scheme of operation of an inverter semi-automatic welding machine has many advantages, which will be discussed further.
Did you know?The highest welding temperature reaches 5000 °C.
Advantages of inverter-type semi-automatic machines
The described type of semiautomatic welding machines is a relatively new development, which, in comparison with other similar devices, has several advantages. First of all, one cannot fail to note the more accurate welding seams and the almost complete absence of welding spatter during operation.
The device itself more compact, thanks to which there are no problems with its transportation. Moreover, in comparison with other welding devices, when using the inverter option, significant energy savings will be noticeable.
The advantages of using the described device include: hot start function(provides for a sharp increase in current parameters at the first stage of welding, which facilitates the formation of an arc), anti-stick function(reduces current parameters when electrodes stick, thereby allowing them to be disconnected from the metal).
Arc force function(allows you to improve the quality of welding on a vertical surface).
How to choose
Having learned about all the advantages of welding inverters, many craftsmen will probably want to purchase such an assistant for themselves.
But how to choose an inexpensive semi-automatic inverter welding machine with the optimal set of all functions? Let's see what features should be taken into account first of all, and what in its characteristics is not so important in household work.
What to pay attention to
When choosing a device for efficient operation, the following features must be taken into account model you are interested in:
- Built-in protection against sudden changes in network voltage(the optimal level of such a protective parameter is 20-25% for industrial devices and 10-15% for home devices).
- Availability of tunnel ventilation(provides for the radiator to be located along the body, with the main components located inside it). This allows you to avoid dust accumulation, but most often this problem is more relevant for large-scale production, while when buying a welding device for home use, you don’t have to overpay for this function.
- Availability of printed circuit boards on the service(the most common and expensive problem) to this model. The availability of spare parts only on order will indicate that such breakdowns are rare, and this is good.
- Temperature range of operation of the welding inverter(according to the generally accepted standard for manual arc welding, a temperature gap from -40 °C to +40 °C is provided, but before purchasing it is still better to look at the manufacturer’s website or in the catalog, since at temperatures below 0 °C most inverters simply will not start ).
- Performance of a specific inverter semi-automatic machine(All data of this kind is given based on the calculation of the voltage in the supply network. Typically 220-230 V). However, the characteristics often indicate an indicator of 170-270 V, but in this case it is necessary to understand that the performance of the device at 170 V will be much lower than at 220 V. Conclusion - the power reserve is very useful (for welding with a 3 mm electrode you will need a device with indicator of 4 mm).
- Device specifics: household (capable of working continuously for 15-30 minutes with a further break of about 1 hour), professional (provides the possibility of an 8-hour work cycle) and industrial (it is possible to operate in three shifts with short intervals).
- Availability of a service center, company catalogs, clarity of instructions with a translation option for your country and other indirect signs of a quality product.
Did you know?The electric arc was discovered in 1802, but full-fledged welding was invented much later - in 1883.
What you can ignore
At the same time, in addition to the “mandatory” characteristics that cannot be ignored when purchasing an inverter, there are less important parameters, for example:
- You should not focus on the “hot start”, “anti-stick when turned off” or “arc force” functions, since these functions are relevant for almost all inverters, regardless of the model.
- “Price-quality” ratio (the high cost of a device does not always indicate its quality, because everything here depends more on the scale of production).
- Information from the certificate. According to experts, the certificate is the last place you should look, because in 90% of situations the country of origin still turns out to be China, even if the documents say something else.
Review of the 4 best FUBAG welding inverters
Having familiarized yourself with the main characteristics of welding inverters, it’s time to move on to considering specific popular models, with all their pros and cons. Let's start with devices from FUBAG.
Fubag IRMIG 200
The semi-automatic welding inverter from the Fubag company called “IRMIG 200” copes well with any welding work using the MIG/MAG and MMA methods, and the high-quality components of the device will ensure it long-term operation.
This model is intended for periodic welding, and both professional, so inexperienced user. This is an excellent solution for car service, production, garage, construction and gardening.
Characteristics:
- The weight of the device is 15.4 kg.
- Power used - 7.9 kW.
- Design dimensions - 570x320x440 mm.
- Current strength - from 30 A (minimum value) to 200 A (maximum).
- Types of welding (possible) - MIG, MMA, MAG, without gas.
- Works with electrodes 1.6-4 mm thick.
- Cooling - air.
Pros:
- Easy setup of the device before starting work.
- Good welding even at low mains voltage.
- Compactness and lightness (allow full use of the device in limited space and expand the capabilities of the device due to its mobility).
- Stable and good arc.
- The presence of a Euro connector (it becomes possible to use removable burners).
- The presence of an effective air cooling system, a grounding cable, a gas hose and a clamp for it.
- Availability of automatic wire feed mechanism.
Minuses:
- Average length of power wires (sometimes it is not enough).
- Noisy fans.
Fubag INMIG 200 PLUS
This model of inverter can be safely classified as a middle class of similar devices, where it occupies rather an entry-level level. That is, for household needs where no tools are required high power, Fubag INMIG 200 PLUS will do just fine.
The device is also suitable for low- and medium-intensity welding work that is short-term and irregular in nature.
Characteristics:
- Weight - 15.4 kg.
- The required voltage in the network used is 220 V.
- Power used - 7.92 kW.
- Dimensions - 550x320x440 mm.
- Current strength - from 20 A to 200 A.
- The thickness of suitable electrodes is 0.8-1.0 mm.
- Types of welding - TIG, MIG, MAG, MMA, without gas.
- Cooling - air.
Pros:
- Simple ignition of the welding arc (you just need to touch the workpiece with the wire).
- Possibility of adjusting the speed of wire use.
- Monitoring the operating settings of the device and its characteristics using light indicators and two bright displays (located on the front panel of the inverter).
- Reliable cooling system.
Minuses:
- Sometimes problems arise with pre-gas and post-gas.
- Sensitivity to low voltage.
- Care for protection when using the device on an extension cord longer than 20 m.
- The required wire speed can only be adjusted after welding has started.
Fubag INMIG 250 T
Model medium power level, suitable for a fairly wide range of work. First of all, Fubag INMIG 250 T is perfect for confident users who are looking for a reliable inverter semi-automatic machine for long and frequent welding.
The device is successfully used by both ordinary welders and professionals in their field: builders, auto mechanics, installers, etc.
Characteristics:
- Weight - 20 kg.
- Voltage - 380 V.
- Power used - 8.7 kW.
- Dimensions - 610x240x430 mm.
- Current strength - from 50 A to 250 A.
- The thickness of suitable electrodes (wire without gas) is 0.6-1.2 mm.
- Types of welding - MIG, MAG, without gas.
- Cooling - air.
Pros:
- Easy control of all operating parameters using indicator lights and displays.
- Availability of wire speed, current and voltage regulators.
- Availability of a special Euro connector.
- Availability of reliable protection against overheating.
Minuses:
- Ability to work only with input voltage (V 380 V), which is why you need to think about it in advance additional power supply, if your electrical network cannot provide this indicator.
Fubag IRMIG 180
The model is different high quality completed seam and is excellent for use in auto repair shops, small production facilities and construction sites where there is a need for discreet welding. Can be successfully used as professional workers, so newbies.
Characteristics:
- Weight - 12 kg.
- Voltage - 198-242 V.
- Required power - 6.6 kW.
- Dimensions - 70x300x370 mm.
- Current strength (welding) - from 30 A to 180 A.
- Types of welding - MIG/MAG.
Pros:
- Possibility of operation in a fairly low room or at a low altitude.
- The presence of a high-quality forced cooling system eliminates the possibility of overheating of the device.
- Connection to a standard household socket of 220 V.
- Availability of a professional burner and voltage control on it.
- Long continuous operation at maximum current supply.
- Automatic wire feed and metal feeder.
- Ability to use the device in low and high temperature conditions.
Minuses:
- Quite a high cost.
- A small number of settings for a real specialist.
- Short power wires (a common problem for many inverter semi-automatic machines).
- Non-standard holes for fixing on the wall.
Review of the 2 best semi-automatic welding machines "Svarog"
Inverter semi-automatic welding machines from the company " Svarog" intended for professional welding at home. In addition, such equipment is quite in demand when assembling various metal structures.
The maximum current strength of Svarog inverters varies from 160 A before 500 A and even more. Among the fairly extensive assortment, you can find devices that connect to a single-phase network (that is, with a voltage of 220 V), as well as models with a voltage of 380 V(for three-phase network).
In this case, the weight of the structure itself can be from 25 to 100 kg.
Svarog REAL MIG 200 (N24002)
This model refers to household appliances, however, it is also great for advanced users who already have some experience in welding.
The device is very well equipped in functional terms and has a fairly significant working resource, thanks to which able to function properly for many years.
Characteristics:
- The weight of the structure is 13 kg.
- The required voltage (in the network) is 220 V.
- Power (used by the device) - 6.1 kW.
- Dimensions - 502×225×375 mm.
- Current strength - 30-200 A.
- The thickness of suitable electrodes is 0.6-1 mm (copper-plated wire).
- Types of welding - MMA, MAG, MIG, without gas.
- Cooling - air.
Pros:
- Ability to work using cored wire, as well as standard coated electrodes (in direct or reverse polarity mode).
- The wire feeding mechanism is made of durable metal.
- The presence of a convenient handle for transporting the device.
- Availability of a replaceable torch and a quick-release connection for connecting the torch.
- Ease of use.
Minuses:
- The weight of the structure is quite large.
- No electrode holder.
- The wire feeding motor is too noisy.
Svarog PRO MIG 200 Synergy (N229)
Another inverter semi-automatic welding machine related to household class. However, in comparison with others, this model is more advanced option, both in terms of functional equipment and technical characteristics, making it ideal for private users with some experience.
Characteristics:
- The weight of the device is 12.5 kg.
- The voltage in the network used is 220 V.
- Power used - 7.2 kW.
- Dimensions - 485x185x370 mm.
- Current strength - 10-200 A.
- The thickness of suitable electrodes is 1.5-5.0 mm (electrode diameter for MMA), 1.0-3.2 mm (TIG diameter), 0.6-1.0 mm (MIG welding wire diameter).
- Cooling - air.
Pros:
- High-quality assembly of the device.
- Full implementation of the entire scope of work provided for by the technical specifications.
- Possibility of performing three types of welding.
- Smooth and strong welding seam.
- An excellent option for professional use.
- High welding speed.
Minuses:
- High price.
- Loose seating of the wire spool.
- Lack of TIG torch and holder for manual welding.
Svarog REAL MIG 160 (N24001)
A functional and compact semi-automatic welding machine, which, like the previous options, belongs to the household class of devices.
Suitable for use by both experienced users and beginners in welding. Svarog REAL MIG 160 (N24001) has rich functionality and has high working resource.
Characteristics:
- Weight - 5 kg.
- Voltage (consumed from the network) - 220 V.
- Power - 5.9 kW.
- Dimensions - 502×225×375 mm.
- Current strength - from 30 A to 160 A.
- The thickness of suitable electrodes is 0.6-0.8 mm.
- Types of welding - TIG, MIG, MMA, MAG, without gas.
- Cooling - air.
Pros:
- Convenient settings.
- Good wire feed.
- Excellent quality of penetrations and seams in any mode.
Minuses:
- Relatively high price.
- There is nowhere to hide the wires.
Review of the 3 best semi-automatic inverters FOXWELD
Semi-automatic welding equipment from the manufacturer FOXWELD was developed specifically for efficient operation with minimal energy and physical costs.
All devices are very diverse in power range, have optimal dimensional characteristics, high efficiency and a good price-quality ratio. Let's consider the most famous models that are especially popular.
FOXWELD VARTEG 150 DUO
This model is used for welding work using direct current(semi-automatic) and solid wire, with a diameter of 0.6-0.8 mm in diameter in a gas environment of stainless and ferrous steels, copper alloys, as well as flux-cored wire 0.8 mm without the use of protective gas.
If desired, the specified model also suitable for arc welding welding beginners or professional users.
Characteristics:
- Weight - 7.9 kg.
- Voltage - 220 V.
- The power of the network used is 3.1 kW.
- Dimensions - 357x170x270 mm.
- Welding current strength - 180 A.
- Cooling - air.
Pros:
- Built-in wire feed mechanism on two rollers.
- Possibility of using different operating modes (with or without gas).
- Clear and easy to use panel.
- Relatively low cost.
- Small dimensions, which make the device a good option for a garage, cottage or home.
- Possibility of stable operation at reduced voltage.
Minuses:
- Relatively low power.
- More suitable for infrequent home use with minor work tasks.
FOXWELD VARTEG 180 DUO
Good option to do small repair work, requiring device mobility, good quality of the final result and high performance.
Along with the device itself, a grounding clamp, a welding torch (semi-automatic), copper tips, a brush, welding wire and a welder’s shield are also supplied - everything you need for comfortable and easy work.
Characteristics:
- Weight - 10 kg.
- Voltage - 220 V.
- Power - 4 kW.
- Dimensions - 445x200x305 mm.
- The operating current is from 40 A to 180 A.
- The thickness of suitable electrodes is 0.6-0.8 mm (solid wire in a protective gas environment or cored wire), 1.6-3.0 mm (electrodes with rutile and basic coating).
- Types of welding - MIG, MAG, MMA, without gas.
- Cooling - air.
Pros:
- Comfortable ergonomic handle.
- Availability of a quick-release connection for connecting the burner.
- Possibility of full functioning at reduced current (up to 140 V).
- Small weight and dimensions of the device.
- Convenient location of all elements on the control panel.
Minuses:
- In semi-automatic mode, the gas supply hose may break, but this happens infrequently.
- Relatively low power.
FOXWELD INVERMIG 185
This model is able to provide ideal welding characteristics even in in case of a slight drop in input voltage(especially when working at low currents and when connecting elements with small thickness).
Ideal for use in garage conditions,small car service or for urgent repair work.
Characteristics:
- Weight - 20 kg.
- Voltage - 220 V.
- Power - 4.2 kW.
- Dimensions - 480x197x466 mm.
- Current strength - from 30 A to 180 A.
- The thickness of suitable electrodes is 0.6-1.0 mm.
- Types of welding - MAG, MIG, MMA, without gas.
- Cooling - air.
Pros:
- Can change the polarity for flux-cored wire and adjust the arc length (the welding process takes place with minimal metal spattering).
- The wire feed unit is built into the device itself.
- Availability of a modern function for adjusting the length of the welding arc.
- Good performance from a 7 kW generator without loss of welding current.
- Resistance of the device's modular circuitry to failed networks.
Minuses:
- Insufficient information content of the instructions (for beginners).
- When you change the setting of one of the three regulators, some other indicator may change.
- Unreliable plastic nut securing the coil.
Review of the 3 best Aurora welding inverters
Aurora inverter semi-automatic welding machines are created using the latest technological processes and innovative solutions, which contribute to the production of high-quality, but such different equipment.
Thus, in the model range of the indicated manufacturer they are presented as budget models, more suitable for amateur welding, so professional, multifunctional equipment. Let's look at some of the most popular inverter models from Aurora.
Aurora SPEEDWAY 175
This model is the largest work in the initial line of professional welding inverters of the mentioned company. It is a universal device that provides high-quality semi-automatic welding in an active/inert shielding gas environment, using self-shielding flux-cored wire, manual arc welding using a stick electrode and for argon-arc welding at a constant current.
Characteristics:
- The weight of the device is 12.8 kg.
- Voltage - 220 V.
- Power used - 4.8 kW.
- Dimensions - 420x220x439 mm.
- Current strength - from 50 A to 175 A.
- The thickness of suitable electrodes is from 0.6 to 4 mm.
- Types of welding - TIG, MIG, MMA, MAG.
Pros:
- Excellent performance when welding aluminum (high-quality welds of workpieces 8-10 mm thick).
- Possibility of synergetic “one button” control.
- Simple polarity change.
- Stable operation when the voltage in the supply network decreases.
- High level of arc stability and reduced spatter.
- The presence of a bright digital display used to display welding process parameters.
- Automatic overload protection.
- A wide range of additional welding accessories for comfortable work in all modes.
- The presence of LEDs on the control board, which facilitate diagnostic procedures when problems occur.
- Modern design of the device body.
Minuses:
- There is no high-frequency ignition during TIG welding.
- There is not enough adapter axis for small reels (0.9-1 kg).
- With a maximum spool size of 5 kg, the wire compartment lid does not always close.
Aurora OVERMAN 180
The semi-automatic inverter welding machine Aurora OVERMAN 180 is perfect for long-term work when solving everyday and professional problems, which is why it is often used in car repair shops, small industries or private garages. Like the previous option, it can demonstrate high efficiency when working with aluminum products.
Characteristics:
- Weight - 15 kg.
- Voltage - 220 V.
- Power used - 4.7 kW.
- Dimensions - 482×197×466.
- Current strength - from 40 A to 175 A.
- The thickness of the electrodes is 0.6-1.0 mm.
- Types of welding - MAG, MIG.
Pros:
- Good equipment (there are even hose clamps).
- Smooth adjustment allows you to properly configure the device.
- Neat and even welding seams.
- Possibility of adjusting current and voltage during welding.
- Good quality aluminum welding.
- Setting the wire speed (feed) (slow and fast).
- Reduced spatter and high arc stability.
- More modern MOSFET inverter technology based on TOSHIBA transistors.
Minuses:
- High price.
- Working with aluminum is possible only at the household level.
- 0.6mm wire is not included (0.8mm and 1.0mm only).
- Relatively heavy weight.
Aurora OVERMAN 160
Like previous models, this device is perfect for household needs, although it can also be used as semi-professional device when welding various metals, in particular aluminum.
Characteristics:
- Weight - 15 kg.
- Voltage - 220 V.
- The network power used by the device is 4 kW.
- Dimensions - 466x197x482mm.
- Current strength - from 40 A to 160 A.
- The thickness of suitable electrodes is 0.6-1 mm.
- Types of welding - MIG, MAG.
Pros:
- Ability to work in networks with large voltage drops, that is, during a sharp drop in voltage.
Important!The change in inductance is reflected in the rigidity of the arc, the depth and shape of the weld.
- Suitable for both household and semi-professional welding, leaving an even seam.
- Easy setup of the device to implement a wide range of welding tasks.
- The welding inverter kit includes a three-meter torch, a ground clamp and a 25-meter cable.
Minuses:
- High cost of the device.
- Problems often arise with the adjustment of pre- and post-gas.
Review of the 2 best semi-automatic inverters Resanta
Resanta inverter semi-automatic welding machines are devices that operate from a regular household network. All of them are lightweight and have the same performance with a standardized filler wire diameter, which is why they are more often used for domestic needs.
Important!When describing Resanta semi-automatic devices, the abbreviated name of the devices - SAIPA - is often used.
Reesanta SAI-200PA
Modern high-tech model welding machine, characterized by good functionality and small size. The model allows you to get the most even welding seam along its entire length, and the switching time is 80% .
Characteristics:
- Weight - 14.3 kg.
- Voltage - 220 V.
- Power used - 5.5 kW.
- Dimensions - 505x280x215 mm.
- Current strength (when welding) - from 30 A to 200 A.
- The thickness of suitable electrodes is 0.8-1 mm.
Pros:
- IGBT platform.
- More efficient forced ventilation system.
- The presence of a special temperature sensor inside the case, eliminating the possibility of overheating of the device.
- Features a rigid handle for easy carrying.
- Quick connection due to the presence of special terminals that eliminate current loss.
- Automatic shutdown of the device when it overheats.
- Metal body and light weight.
- Ease of transportation.
Minuses:
- Short network cable.
- Weak belt fastening.
Resanta SAIPA-135
Unlike the inverters described above, this model involves the use special wire for welding work. Its feeding is carried out automatically, at a predetermined speed, which makes the seams as smooth as possible.
At maximum current, the immersion duration is usually 70% .
Characteristics:
- Weight - 11 kg.
- Voltage - 220 V.
- Power used - 3.3 kW.
- Dimensions - 300x140x270 mm.
- Current strength (welding) - from 20 A to 110 A.
- The thickness of suitable electrodes is 0.6-0.8 mm.
- Types of welding - MAG, MIG and without gas.
- Cooling - air.
Pros:
- IGBT platform.
- The presence of a temperature controller that automatically turns off the device when overheated.
- The presence of a rigid handle for convenient carrying of the inverter.
- Smooth adjustment of the welding current through the use of pulse width modulation.
- Light weight and dimensions.
- Possibility of successful use in weak networks.
Minuses:
- Short holder cable.
- Weak regulator.
- Inability to connect a standard burner, while the “native” one is too short.
As you can see, the modern market can offer a huge number of various options for inverter welding machines, with different design features and performance characteristics, and in order not to make a mistake in choosing, decide for what specific purposes you need an inverter.
If for frequent professional use, then you should give preference to more powerful and durable devices, which, unfortunately, are not cheap.
An unplanned test of welding inverters on a really weak network took place on 10/03/2014 near Kiev in a house that is located at the very end of the street and has a network voltage of about 160V.
Since the test was completely unprepared, welding inverters were selected quickly and without any plans. The following inverters took part in the test:
- PATON VDI-160P (three devices with different production dates);
- GYSmi 4000, French;
- Fronius Transpocket 1500;
- Chinese inverter Sturm 220A;
- Also Chinese Modern Welding MMA 140;
- Kharkov SSVA-160-2;
- SSVA-mini Samurai;
- Zaporozhye Elsva VD-161I (with cash register).
I would like to note that on all welding machines that support this function, the “afterburner” and “hot start” were completely removed in order to reduce the load on the already weak network.
Electrodes TM "Monolit" F3, F2 were located at this facility, which is why they were used during testing.
Inverter test video
I will try to describe in detail and point by point the process of checking inverters on a weak network.
- Paton VDI-160P No. 1 was checked. The device fully corresponds to its factory data, and is even capable of operating from a network with a voltage of 160V, but every weak network tends to sag under load. The magnitude of the “failure” depends only on the quality of this network. In this test of welding inverters, the mains voltage dropped from 160-170V (at idle) to 130-140V. Inverter VDI-160R No. 1 worked perfectly with a normal network, and when powered by 160V, it instantly dropped the network to 140V, which caused the low voltage protection device to turn off. It was possible to achieve welding only at low currents using F2 electrodes due to the reduction in the load on the network and preventing a drawdown below 140V.
- The next one was PATON VDI-160 R No. 2. This device was able to cook normally with F3 electrodes even when the supply voltage dropped to 135V. This inverter itself, at this voltage, produced more current and cooked more consistently.
- The inverter device Paton VDI 160P No. 3 worked exactly the same as the first test subject.
- The green French inverter GYSmi 4000 worked very well when the mains power dropped to 137V. Ignition is excellent, arc stability is good. A triple electrode at the maximum possible current can cook and warm up thick metal well. What was noticed is that this welding machine can only weld with a very short arc. As soon as you move the electrode away from the part a little, the arc immediately goes out.
- Unlike the previous one tested, the Fronius Transpocket 1500 inverter has a longer and more viscous arc. Welding with such a machine will be very comfortable for beginners, and pros will be able to adapt. This device was able to operate normally over the entire range of set currents and with a drawdown of up to 145V with electrodes with a cross-section of three millimeters.
- The Chinese inverter Sturm 220A turned out to be completely unprepared for operation from a weak network. With a 165V power supply, he couldn’t even ignite an arc. To select the welding current at which welding would be possible, we reduced the output current, but it never started welding.
- Also a Chinese device, Modern Welding MMA 140. This inverter easily cooked at any set current, and the network was drained to 130V. The troika electrode was able to not only heat up the metal well, but also cut it a little.
- Welding SSVA-160-2 has one of the best test results on the sagging network. This inverter cooks well in threes at currents set according to the board, from 100 to 160A; with an increase in the rating, you can even cut metal (12mm fittings began to heat up).
- The household SSVA-mini also felt great when the voltage dropped to 130-135V under load. When the welding current was increased to the maximum, the Samurai did not begin to produce more current, it remained at about 70A as it was. At this current, normal triple welding is possible.
- As one would expect, the Elsva VD-161I inverter showed the best performance results from a weak network. With the maximum current set, the inverter produced 90A of stable current; at this moment the mains power dropped to 102V. The built-in stabilizer monitored voltage fluctuations well and maintained arc stability.
Here is a test of welding inverters on a drained network. Read, watch the video, ask questions and draw your own conclusions.
Are you planning to buy a reliable inverter for welding? The question is tormented: which inverter welding machine is better?!
Top best welding inverters
American and European manufacturers supply high-quality products to the Russian market. Who tops the rating of welding inverters in terms of reliability?
1. KEMPPI. The Finnish company deservedly takes first place. Products for household and professional needs are supplied to the market. Devices from Finland operate at temperatures of -20 +40°C, they are functional, high quality and reliable.
For example, the KEMPPI MINARC 150 welding inverter costs 40,000 rubles and weighs 4 kg.
Reliable (non-killable) machine for manual arc welding (MMA) and argon (TIG DC) on direct current. Kempi Minark 150 has a shock-resistant body and IP23C protection (lateral rain is not a problem). Operates on a 170 V power supply and from a 5 kW generator.
Technical characteristics of KEMPPI MINARC 150 are presented in the table:
2.EWM. Second place was given to a German company, a manufacturer of welding equipment with 50 years of experience.
The reliable welding inverter PICO 162 is assembled in the Czech Republic at the German plant EWM HighTec Welding GmbH.
Price 40 thousand rubles. Its small size and weight of 4.8 kg do not prevent the device from welding a ceiling surface with a 4 mm electrode. The case is shock-resistant, 3-year warranty.
3.ESAB. The Swedish company produces reliable welding equipment and occupies third place in the ranking.
For example, the ESAB Buddy Arc 145 welding inverter is a lightweight and convenient power source for manual arc welding. Cost 15 thousand rubles.
For ESAB Buddy Arc 145, electrodes with a diameter of 1.6 - 2.4 mm are used for stainless steel, alloy steel and cast iron.
Specifications table:
4. Telwin. In fourth place is an Italian company with 50 years of experience in the production of welding machines and cutting systems. Telwin stands for high performance in a variety of operating conditions.
Operates from a mains voltage of 230 V +/- 15%. The device is designed for consumable welding. Used melting rods: alkaline, rutile, for cast iron and stainless steel. There is protection against over and low voltage. The kit includes: plastic case and accessories for MMA welding.
Specifications:
5. Lincoln Electric. Fifth place was given to an American company, which, with 100 years of experience, could have taken first place. But, the equipment is manufactured in China at the Lincoln Electric Shanghai plant.
For example, consider the Lincoln Electric PowerCRAFT 160i-S welding inverter, costing 15,000 rubles.
The device is lightweight (4.5 kg), assembled using IGBT technology - energy saving and reliable operation.
Other technical characteristics:
For a wide range of Russian consumers, these products are unaffordable due to their high cost. Let's consider budget inverter brands that have proven themselves well on the market.
Rating of welding inverters for home
The best welding inverters from 6,000 to 9,000 rubles, our rating. We are testing 5 devices of different nationalities, but assembled in China. This:
- Resanta SAI 160 - price 6,000 rubles;
- Prorab FORWARD 1600 IGBT - 7,500 rubles;
- Eland MMA 160 lux - 8,500 rubles;
- Fubag IR 160 - 8,000 rubles;
- Aurora MINIONE 1600 — 8,500 rub.
1. Aurora Minione 1600 takes first place in tests and reviews.
The device comes in a case, which is convenient for transportation and storage. The assembly is good, the internal elements are completely varnished, the metal parts are grounded. The purging of the power part is separated into a special tunnel, excluding dust from getting on the boards. The device control board is soldered into the main board, which makes repairs easier.
The stated current in the passport is 160 A, but in reality it is 150 A. Useful functions (hot start, anti-sticking) are present.
The device is also equipped with a VRD function - reducing idle speed, allowing the welder to work at high humidity. The minimum operating voltage of the network is 170 V. PV = 30%. UONI 13/55 rods with a diameter of 2.5 mm ignite quickly, the arc is stable.
Video :
2. Fubag IR 160 takes second place.
Carefully assembled, fully varnished, 1 powerful fan, the dust from which settles on the unprotected board. Disadvantages: the device control control is located on a common board; if the control fails, the entire board must be replaced.
Claimed 160 A, outputs 150 A. Inverter functions are present on the device. The Hotstart function has a strong flash; when operating at low currents, it will burn through thin metal.
The minimum operating voltage is 160 V. The on-time is 50%. 2.5 mm in diameter ignite well, the arc is stable.
Video :
3. Resanta SAI 160 on the third place. The assembly of the device is neat, the boards are varnished, there are 2 fans from which dust settles on all components of the product.
The declared welding current is 160 A, produces 125 A. Anti-Stick and Hotstart functions work.
The inverter remains operational until the network drops to 160 V. PV - 100%. UONI 13/55 electrodes with a diameter of 2.5 mm are difficult to ignite and the arc is interrupted.
Video :
4. Prorab FORWARD 1600 IGBT in fourth position. The declared current is 160 A, output is 165 A.
Duration of inclusion is 35% (2 times less than promised). The minimum operating voltage is 160 V. The cooling system is weak and operates at the limit of its capabilities. SSNI 13/55 works well with capricious people.
4. Eland MMA 160 lux placed in fifth place.
The box contains a plastic shield and a hammer-brush for removing slag. The assembly is good, and the varnish is only on one side. On the elements side, there is no varnish coating. The presence of 2 fans forces dust to settle on unvarnished products, which will affect the work.