Modifications of SAI-220
Welding machine Resanta SAI-220
Resanta SAI 220 (Resanta 220A) is the penultimate model in the line of budget SAI inverters. Only the SAI-250 and the SAI-250PROF modification are more expensive. The Resanta SAI 220 device is intended for domestic use and welding using coated piece electrodes.
This inverter should not be taken as a professional welding machine. It is intended for study or simple repairs. But not for work in production or in a large repair shop. For such purposes, expensive powerful inverters like the LINCOLN ELECTRIC Invertec V350 PRO costing $10 thousand are usually used.
Let's return to the characteristics. The maximum declared current is 220 Amperes. In general, the names of inverters in the AIS line contain this characteristic right in the name. Hence “SAI 220”, which means “220 Amperes”. The device only needs 220V (+/- 20V) to operate. Plug in the inverter and you can start welding.
SAI 220 is very compact and lightweight. It can be hung on the shoulder using a belt and carried without any problems. This is really important if you have a large estate or have to travel long distances.
Resanta SAI 220 is my favorite device!
Welding inverter "Resanta SAI 220"
Recently, the leading position in sales among the entire line of inverters has been occupied by a welding inverter...
Resanta SAI 220. This is evidenced by numerous positive user reviews about the functionality of the device and build quality.
BUY WELDING MACHINE RESANTA SAI 220 NOW!
Resanta SAI 220 is a high-tech welding inverter for manual arc welding. This is one of the latest developments, which boasts the latest technological innovations that contribute to high-quality and convenient work.
Why is this inverter model so popular? Perhaps the main mystery of this model is that its parameters cannot be classified into the class of both household and professional units and the users of these devices are both professionals and beginners. So what is its appeal to such opposing categories of buyers?
The characteristics of the Resanta SAI 220 welding inverter in terms of maximum welding current are an order of magnitude higher than similar analogues from the Resanta line, which gives professional welders more scope for creativity in their work and allows them to perform serious welding work using thick electrodes and with more stable performance.
Beginners without experience in working with a welding inverter are attracted by the ease of operation, because the SAI 220 welding inverter can be used immediately, without prior preparation, just read the instructions. The design features of the inverter help maintain a stable arc and ensure comfortable operation.
The operating principle of Resanta SAI 220 is a two-stage voltage conversion (AC to DC and conversion to high-frequency AC). The welding inverter circuit consists of the following main components:
1. power unit with a frequency of 50Hz
2. inverter unit that converts direct current into high-frequency alternating current
3. rectifier
4. transformer
5. throttle
Resanta SAI 220 belongs to the increased protection class IP21 and ensures safe operation for both beginners and professionals. All internal components of the inverter are motionless; all current-carrying mechanisms are insulated with high-quality varnish - this indicates mechanical security and the impossibility of objects getting inside.
The main advantages of Resanta SAI 220:
- The device has compact dimensions and light weight, which makes it easy to transport the unit and use it for mobile welding.
- Current adjustment range from 10-220A. This allows you to carry out specific work with electrodes of any thickness, at low current with thin electrodes, and at 220A you can carry out work with thick electrodes and massive surfaces.
- The powerful design of Resanta SAI 220 is very resistant to mechanical damage and allows for harsh use.
- The no-load voltage is 28V and the arc voltage is 80V. Such low values make the inverter safe to use.
- The design features of the device allow it to be used in harsh climatic conditions, down to -20°C. You just need to control the heating and cooling mode.
- A smooth regulator of the welding current allows operation without experience or special skills.
- The presence of two cooling fans improves airflow and cooling inside the case.
- Resanta SAI 220 is very resistant to overheating. Even if the fans fail, shutdown occurs only after two 5mm electrodes are used up.
- Additional functions “hot start” and “anti-sticking” will help beginners or people without experience master the welding process and facilitate easy and simple operation for a professional.
- Resanta SAI 220 has a high efficiency of current conversion and a welding control function during voltage surges, which significantly saves energy costs.
- Resanta SAI 220 ensures high stability of welding process parameters in conditions of unstable power grids. This advantage is especially relevant for residents of remote settlements with constant power surges and for places without central power supply with the presence of autonomous power sources (generators)
Here are comments and personal experience of using Resanta SAI 220 from customers of the online store
Mikhail, Sverdlovsk region, beginner
When we finally got around to electrifying the country house, the question of landscaping the area arose naturally. And any repair and restoration work is impossible without a welding machine. It was necessary to install a fence with a gate, and the material was available, only welding was missing. But you must admit that hiring a professional welder is a costly business, especially since there were financial restrictions. So I decided to purchase a welding machine, but I obviously limited the budget for the purchase. Since I’m not a welder by profession and it’s unclear whether the device will be needed in the future or not, I didn’t want to throw away a lot of money on equipment that might be collecting dust in the garage. But there was a desire to purchase a high-quality and reliable unit at a low cost, which would serve its purpose without repair. Of course, like most people who want to purchase welding, my first choice fell on the old proven classic - a welding transformer. I was almost ready to buy, but was stopped by the understanding of the inconvenience of its transportation. I couldn’t decide how to carry this huge and heavy box with me whenever I wanted to work. And then one evening, while studying information about welding machines, I came across a huge number of positive reviews in the direction of welding inverters. I took a closer look at this miracle of technology and was surprised; small and lightweight inverters promised technical characteristics no worse than those of transformers. The output currents of household models ranged from 120-240A, and they had a child’s weight, compared to the classics! The decision was obvious, and the scales tipped towards the purchase of a welding inverter. Now it was necessary to study the presented brands, models and prices. At one of the forums, during a conversation with old-timers, I was advised a specific model of the SAI 220 inverter from Resanta. Moreover, almost all the reviews towards this model were positive. Welding aces emphasized time-tested circuitry, functionality and ergonomics. The sellers claimed that this was the best-selling model of the entire Resanta line. After much thought, I decided to buy this particular model and found the cheapest price tag in the Resanta-Ural online store. This is my first purchase of a welding machine, but I was still impressed. I couldn’t even imagine that a welder could be so compact and light and still produce an operating current of up to 220A. I was also struck by the low energy consumption, which is approximately comparable to the operation of two electric kettles. After some period of operation, I was able to evaluate the breadth of current regulation, from 10-220A, which made it possible to confidently work with different electrode diameters. After two years of using the inverter, I can no longer call myself a beginner in the field of welding and quite reasonably say that I made the right choice. For a cottage, garage or workshop, this model is the most relevant and in demand. For these purposes, you can, of course, choose a less powerful inverter, for example 160-180A, but I believe that it is better to have a power reserve, and the voltage in our networks is often not normal.
Victor, Krasnoyarsk , 5th category welder
I have been using the Resanta SAI 220 device for four years now, and it has proven itself only from the best side. When purchasing, I was worried that it would be problematic to work with stainless steel without adding argon. But my fears were in vain, I cook with a 3mm stainless electrode and everything is fine. The only drawback of the inverter is the short wires, but we can solve the problem by carrying it.
Roma, Irkutsk, professional
Although I am a seasoned professional in this matter, I am impressed by the purchase of Resant SAI 220. Previously, I carried out work mainly on a transformer, which has problems with cooling and takes a lot of time to cool down. This is not the case with an inverter and this is its main advantage. The cooling system is at the highest level. An anti-sticking system has also been invented; even an inexperienced beginner can use it.
Andrey, Yekaterinburg , newbie with no work experience
I have a very interesting first experience using this device. I have never mastered welding technology and have never tried to weld, much less have my own welder. One day I came to a friend who was using Resanta SAI 220. Using this machine, a fence and a stove for a bathhouse were welded, so he persuaded me to try it, convincing me that there was nothing complicated about it. He handed me two 3mm angles and showed me how to weld. Surprisingly, everything worked out the first time, although it was a little crooked, but the fact is that everything held up. A week later I already had my Resanta SAI 220 and successfully practiced welding awnings to doors. Subsequently, he repaired the stainless steel tank and fence. There are plans to make a stove for a bathhouse. In general, I’m happy with the purchase, and I’m slowly gaining experience.
You can purchase the Resanta SAI 220 welding inverter on the website of the Resanta-Ural online store or in a specialized equipment store in Yekaterinburg, at st. Novostroya 1A, office 105.
Is it worth buying?
The Resanta SAI 220 device and its modifications are a high-quality inverter at an average price. It has modest characteristics, but they are enough for studying or welding a fence in the country. Of course, Chinese manufacturers are ready to offer a dozen inverters at the same price, but with greater functionality. And the question “Chinese noname device or Resanta inverter?” haunts many welders.
In fact, the products of the Resanta brand are the same Chinese inverters, only with a logo in Russian and with a large number of dealers throughout Russia. This is the main difference. By buying a budget Chinese welder from an unknown manufacturer, you get good performance and more functionality. That's all, nothing more. And when purchasing products from large brands like Resanta, you always overpay a little for the brand, but at the same time you get a developed network of service centers throughout the country, an official guarantee and confirmation that the device will not explode right in your hands.
What's better? You decide. We are ready to overpay for a certified device and quality service.
