The technological breakthrough in the field of welding equipment was the appearance of inverter devices. A fundamentally new way of feeding an electric discharge arc allowed manufacturers to reduce weight and reduce the size of welding machines, while simplifying the execution of welding work due to a number of useful functions and stabilization of combustion. Today, many companies produce inverter devices. One of the most popular is the Svarog inverter.
What is an inverter welding machine
The inverter apparatus is a unit assembled from several key transistors that converts direct current to alternating current at an ultrahigh frequency. The frequency of the current supplied in a standard city network is 50 Hz, while the rectifier and the inverter subsequent to it increase it to 70 kHz. The frequency of the current directly affects the size of the power transformer and its mass. The higher the frequency, the stronger it will be possible to reduce the transformer without losing its power. Manufacturers were able, translating this principle into practice, to reduce welding machines by three times, making them easier and more compact.
Inverter welding machines, in addition to compact size and lightweight design, have other advantages. The operation of such devices and their individual elements is controlled by one or more microcircuits located on the control board. Microcircuits regulate the arc burning mode and realize several functions at once, which are considered mandatory for modern models of inverter apparatus for aluminum welding:
- Hot start. Short-term increase in current strength to facilitate and accelerate the ignition of the arc.
- Anti-sticking. The inverter automatically shuts off if the electrode sticks.
- Fast and the Furious Arc. To prevent sticking of the electrode, the welding current is automatically regulated in the automatic mode.
Manufacturer of inverters "Svarog"
In 2007, a newcomer appeared on the domestic market of welding equipment - a welding machine of the Svarog brand. The manufacturer of the new device was Shenzhen Jasic Technology Development, a company from China, represented by Insvarkom in Russia.
Products manufactured by a Chinese company are of good quality and affordable price, but it does not belong to the premium class. The production of welding machines "Svarog" is carried out on the basis of regulatory documents:
- Directive 89/336 / EEC.
- Directive 73/23 / EEC.
- European standard EN / IEC60974.
Certificates of conformity issued in accordance with the legislation of the Russian Federation confirm the high quality of aluminum welding machines of this brand.
The lineup
During the development of the Svarog apparatus, the manufacturing company tried to realize all the functions necessary for performing welding work. The company today produces about forty models, among which there are devices designed for manual welding, plasma cutting of metals and semi-automatic machines.
Separately, it is worth mentioning the peculiarity of marking invertors for welding Svarog. In the field of production of welding equipment there is an unwritten rule according to which the maximum value of the welding current is indicated in the brand of the device. A similar rule quickly spread among consumers who, when choosing welding machines, evaluate their capabilities without looking at the technical characteristics, relying only on the marking.
The manufacturer of Svarog 200 devices used this rule, indicating in the markings of models figures slightly exceeding the real current strength, since from a legal point of view the manufacturer can give any name to his products. For this reason, when choosing welding machines of this brand, it is imperative to look into the technical specifications.
Devices for manual arc welding
Manual welding machines Svarog ARC 125 and Svarog ARC 145 are used in domestic conditions for welding workpieces, the thickness of which does not exceed 3 mm. The compact size and light weight of the devices make it easy to carry them from place to place and work with them in small rooms. An important advantage of these devices for welding is the price: inverters are sold in the domestic markets for 7-8 thousand rubles, which is a small cost for a very functional device.
Other models of this line, characterized by greater power, can work with currents up to 200 A, so these inverters are used at construction and installation sites, in many production and repair enterprises. The Svarog ARC 250 welding machine is the most powerful in this line - its maximum current is 225 A.
The combination of letters II indicated in the marking of the inverter welding machine means that the body of the device is made of high-quality plastic, respectively, it can be safely used in rooms with a high level of air humidity.
Inverters for semi-automatic welding in shielding gases
The Svarog MIG 160 welding machine is the first of the devices in this model range, which performs welding either with electrode wire or with separate electrodes in semi-automatic mode. This welding machine has a price of 25 thousand rubles. Despite the fairly wide functionality, the most popular is another model from this line - “Svarog MIG 200Y”, which is widely in demand in car services.
An inverter of this model is often used in the assembly of metal structures. Working with such an apparatus at construction sites during high-altitude work is almost impossible due to too much weight of 25 kilograms.
Industrial welding equipment
Semi-automatic two-block inverters "Svarog MIG 350" and "Svarog MIG 500" belong to the category of industrial equipment. This also includes devices for plasma cutting of metal, argon-arc welding and three-phase devices for MMA welding.
Inverters for argon arc welding
Devices for TIG welding “Svarog”, the model range of which includes both universal devices that can switch to the standard welding mode using melting electrodes, and pure “argon”.
Advantages and disadvantages of inverters
The main advantages of welding machines of the Svarog brand are affordable prices and excellent equipment. Many semi-automatic inverters manufactured by this manufacturer are supplied with a cable with a grounding clamp and a welding torch, which is quite rare among similar equipment from other manufacturers.
Despite this, Svarog inverters also have their drawbacks:
- The high cost of repair work. In the event of failure of the Svarog welding machines, a large sum will have to be paid out, which is not less than the cost of a new inverter.
- High requirements for the operating conditions of the devices - both domestic and professional models. It is necessary to take into account temperature and humidity, dustiness of the room.
- Inverters manufactured by this Chinese company do not have a long service life: it is extremely rare that it exceeds the warranty period established by the manufacturer.
The initial task of the company-manufacturer of welding machines "Svarog" was the creation and production of a budget line of inverters. Despite the shortcomings characteristic of this type of equipment, devices from the Chinese company Jasic are in great demand, because, as users say, they fully work out the money spent on them. Svarog inverters are notable for good functionality, rich equipment, and the ability to work in fairly difficult operating conditions. A wide range of products allows you to choose a welding machine that is optimally suited for the planned front of work. Attractive prices make Svarog inverters affordable for the mass consumer. Minor instrument flaws are fully covered by their advantages, reliability and quality of work.