Welding machine Resanta: reviews, AIS, AIS PN, prices, operation

The Resanta brand is of Baltic origin – the company is registered in Latvia. Factories, which has become familiar, are located in China. Welding inverters of several lines are supplied to the Russian market:

• Semiautomatic machines Resanta SAIPA.
• Сварочные инверторы Ресанта САИ.
• Inverters operating at low voltage AIS PN.
• Units with the function of argon-arc welding SAI AD.
• Professional ruler with adjustable arc SAI PROF.
• Line “Compact” – SAI-K.
• Inverter plasma cutter – IPR.
• Inverter welding operating from 380 V – SAI 315.
  

Products, according to reviews, in general, are not bad, with their pluses and minuses. If you need a welding machine for home use, Resanta is a worthy choice. As the pros say: the arc is not as heavy as that of other brands from the same price category. It’s just that the quality is unstable: someone works for years at a constant load (in workshops and production), and someone every two or three weeks (also in production) takes it for repairs. Only production and welders are different. And from those who operate Resanta welding inverters for domestic purposes – in a private house, in the countryside, in a garage, they speak positively about the operation of the units.

The operating mode of welding machines of any line is 70% to 30%. Which means that when working at 140 A out of 10 minutes you can cook / cut 7, and 3 will have to rest – wait until the device cools down. The ratio is not the worst and the mode is generally comfortable.

How to choose a welding machine “Resanta”

Для бытового использования имеет смысл выбрать агрегат из двух линеек — САИ и САИ ПН.

Resanta SAI is a standard modification that operates at 220 V in the network with minor deviations. The following range is declared: + 10% (up to 242 V) and -30% (from 154 V). It seems that such characteristics should be enough, but it actually works fine at 190 V. If it drops even lower, problems begin and you have to install electrodes of a smaller diameter.

In rural areas, the voltage is often lower than 190 V. With such network parameters, not all welding machines can work normally. If you have such a situation, you need to choose an inverter from the AIS PN line. It welds normally even at 140-160 V.

There is another line – “Compact”. It is even smaller and weighs a kilogram and a half less. When designating models of this line, the letter “K” is assigned to the figure indicating the maximum welding current. If weight and size are critical for you, choose a welding inverter from this line.

All others are more suitable for professional or semi-professional use. For domestic use, their “bells and whistles” and increased power are useless. If you can buy them, then no longer beginners in welding.

Model Selection

After you have decided on the ruler, you need to select the maximum welding current. It is affixed in the name of each model after the abbreviation AIS. For example, SAI-160 – the maximum welding current is 160 A, SAI 220 – can produce 220 A.

How to choose power? Based on the work for which it is purchased or for the size of the electrode that you prefer to work with. For example, devices for 3 and 140 amperes are suitable for working with 160 mm electrodes. But 140 will work at the limit, and 160 – in normal mode. You can also consider purchasing 190, but it can already work with 4 mm electrodes. And power reserve is always good. True, you have to pay extra for it.

More powerful models SAI 220 and 250 can work with 5 mm and 6 mm electrodes respectively. If you do not need such capacities, then there is no need to pay for them. But the choice, as always, is yours. Maybe you prefer to work with a 3 mm electrode but with an increased welding current – 190 and above … Rarely, but such welders are also found.

To make it easier to choose, the table has collected the most important characteristics of the Resant welding inverters of the SAI and SAI PN, and SAI K lines.

Technical characteristics of welding inverters Resanta SAI and SAI PN, SAI K

Электропитание инверторов  Ресанта

The main advantage of these welding machines is that they operate from a 220 V household electrical network, without any special requirements. The main thing is that the outlet is grounded. The protection class for all units is IP 21, which means that the device is grounded through the power cord. Therefore, to protect against electric shock, it is necessary to power the inverter from a grounded outlet.

SAI-160 work normally on 10-16 A machines, but you can’t set the maximum welding current on ten-amp ones. If you plan to work SAI 190, you will need at least a 16 A machine.

Reviews

All reviews of Resant inverter welding machines can be conditionally divided: before 2012 and after. Until the age of 12, all the reviews are very good, and not from beginners, but from those who use welding in their professional activities. Further – worse. In 2012, the price of these devices fell significantly – almost by half. It seems good, but, as it turned out, the quality also dropped significantly. After this date, there are different reviews, although positive ones still prevail.

In our workshop, Resanta 250 (AI), she worked every day for a year, until someone attached her legs. There were no complaints about the work, only the cables are a bit short. That’s why we bought a new one. This one just stopped cooking after 3 months. The service did not ask questions, they just repaired it and that’s it. Now everything is fine, we work in an adult way. Other than the cables, no complaints.

Vitaly, Kineshma, 2013

I am a technologist and I have to buy a tool. We needed an inverter for welders – they worked as a transformer, so I decided not to buy an expensive one for now – suddenly it doesn’t work for them, so I bought Resanta SAI 250. For two years of hard work, not a single problem. The transformer is now standing, but this one is always busy. Both specialists cook on it, and those who have only seen how it is necessary to work normally. Nothing, plow. They say that with Resanta – a lottery. We seem to have drawn a good ticket. They just replaced welded cables – they installed 10 meters with a cross section of 25 mm2: the previous five meters were inconvenient.

Nikolai, St. Petersburg

It has been repaired for the fourth time … I have a Resanta 220. All previous repairs were enough for two weeks of work. The last time I repaired by pull (rolled) in another service. They put, as they said, a normal fee. Worked for a month, so far so good. I used to sin on the quality of the device, now I’m at a loss, maybe such a service? Put fig details so that I pay them? Evil is missing.

Grigorievich, Volgograd

I have Resanta 190. I have been working with it periodically for three years now. Everything is fine, you only need to turn on and off, as prescribed in the instructions, set the minimum welding current. It’s easy for me and I do it. I still periodically clean from dust. For such devices, this is critical.

Vitaly Sergeevich, Sergiev Posad

Resanta 220 has been working for me for three years already. It works. For all the time I only changed the cooler. But I clean it regularly, I try not to cut it, I don’t give it to the wrong hands. I don’t work with a grinder or grinder next to welding – there is a lot of dust from them, and it is very harmful for inverters. If you need to work as a grinder, I endure Resanta. If all this is a burden to you, look for another device. There are Europeans, they are not so demanding on working conditions, but they cost several times more, and they don’t want to work with our dancing voltage. So if you need a European who works in our conditions, you also buy a stabilizer. Something like this.

Anatoly, MO

Resanta is not a welding machine, but a bunch of g … a. I’m tired of carrying it for repairs. It breaks down all the time. It just stops cooking and that’s it. I will take another.

Alexander

I bought the Resanta SAI 190 in May 2014. In November, she screwed up. The warranty workshop said that there was a lot of metal dust, which is why it burned out. They wanted to reduce it to a non-warranty repair (at my expense), but after a dispute they repaired it under warranty. Now I keep it. But I don’t know how it will continue to work.

Vlad, Kirovograd

As you can see, positive feedback about Resata AIS prevails, although there is also a negative one. Some lessons can be drawn from operating experience regarding how to make welding work without problems.

Operation of welding inverters Resanta

In the operating instructions for these welding machines, the requirements and recommendations are as follows:

• Do not use a grinder, electric saws, grinding and other tools that generate a large amount of dust near the unit.
• Do not cover the case during operation: forced cooling – coolers (fans). If you close the air supply, the machine will overheat and may burn out.
• Do not work in wet areas or in the rain.
• If you brought the inverter into a warm room from frost, you must wait at least two hours until the condensate dries.

Switching order

Before turning on the machine, check that the switch is in the off position. Connect the power cable and workers, plug into the outlet. Set the minimum welding current on the regulator, then press the “on” button. Shutdown is carried out as follows: first unscrew to a minimum, then turn off the toggle switch, and then from the network. When the work is finished, disconnect the wires and put them in place.

When unrolling cables, or using an extension cord, make sure that all wires are unrolled completely and do not intersect. Do not leave cables coiled: an inductor is created that adversely affects the equipment.

practical recommendations

Resant SAI inverters have overheating protection. It automatically turns off the device when the temperature approaches a critical one. But it’s better not to bring it to a shutdown. Work in intermittent mode: cook for 7 minutes, let the unit cool down for 3-5 minutes. It is not necessary to turn it off during these intervals.

There is no need to turn off the power and when shutting down due to overheating. Just wait 5-7 minutes. Do not turn it off even if you have a short break in your work: the less often you turn on the equipment, the longer it will last. Starting currents, although they eat the “soft start” function, have a bad effect on this kind of equipment. Therefore, turn off the inverter only if the break is more than an hour.

If you want the Resanta SAI to work properly, periodically clean the insides of dust. Especially if you worked near a source of dust or after a long downtime.

You need to cook stainless steel with Resanta on reverse polarity.

If you are going to lengthen the working cables, increase their diameter, the voltage will sag less. If you bet on 10 meters – the cross section is preferably 25mm².

Practical tips for repairing Resanta welds

Если вы имеете навык таких работ, то вам помогут схемы, выложенные ниже. Есть также несколько рекомендаций, основанных на опыте «самоделкиных».

After a year and a half of operation, the Resant 220 began to turn off due to overheating if it worked at currents greater than 140 A. The warranty ended, it was useful to look for myself. It was just that the input cable was badly pulled. By the way, he was worn out – he worked every day for a year and a half. The cable was replaced, the terminals were not tightened like a woman, and I also vacuumed it.

Timofey, Primorsky Krai

Bought a Resanta 250 Prof. The seam holds perfectly, cooks gently. I like. Only after a month of work (1 kg of three per day, but not always, it happened even less), after a cotton inside, he died. Gave in repair, waited 45 days. After the repair a month later there was a breakdown. It happens if the electric wire is not clamped in the holder. I didn’t want to wait another 45 days, I spun it myself. There were almost no wires screwed to the board. Only baited. And how did the servicemen look? Or are they special? The boards piece burned out. I soldered the wire to the terminal, screwed it on. Works. True, at sub-zero temperatures, now the indicator shows something unthinkable, but it works.

Vitaly, Krasnodar My Resanta SAI 220 stopped showing signs of life after a month of work. I opened it, checked it, two FGH40N60SFD transistors burned out. I found them, bought them, changed all four, even though two burned out. At the same time, I replaced the 12 W resistor with 51 ohms. It worked, but not for long. The transistors burned after several inclusions. Apparently the batch was defective. Bought others, installed, works fine. Yes. My 220 was more suited to the scheme from 250 – with minor mismatches. What can I say, the board is made normally, the tracks do not peel off. Though it pleases. Although the parts could be tested before being put into production.

Anatoly, Nizhny

Resant’s quarrel masks

It is impossible to work with welding without a welder’s mask – you will immediately get a retinal burn, which is called a “bunny”. Light filters protect the eyes from damage by infrared and ultraviolet radiation. From flying spray and scale – the body of the mask. Both should be reliable and provide maximum protection.

Resanta produces several types of welding helmets:

• MS-1 – with an automatic light filter on liquid crystals TSK-3201. There are two modes: welding and grinding, dimming regulator, which allow you to use the mask both for welding and as a protective shield when working with a grinder or other similar tools. The price is 1500-1800 rubles.
• MS-2 – with a light filter TCK-4000. There are three adjustments: the degree of dimming, sensitivity, delay time (how quickly it works when the brightness of the light changes). Step change in dimming. The price is 1900-2100 rubles.
• MS-3 – light filter TCK-3202, the adjustments are the same as in MS-2, but the change in the transparency of the light filter is smooth. Also, the adjustment range for Resant MS-3 is 9-13DIN, for Resant MS-2 it is 10-12DIN. The price is 2600-2800 rubles.
• МС-4 — самая дешевая (цена 1200-1400 рублей) и самая простая маска. Светофильтр ТСК-2101. Работает только при положительных температурах, даже при незначительном понижении начинает «тормозить».

All main technical characteristics of welder masks Resant MS are given in the table.

And a video review of the Resant MS-1 welding mask.

Several schemes of welding inverters: