Inverter welding machine Sai 220. Resanta welding machines. What should you pay attention to when choosing a Resanta inverter welding machine?

RESANTA welding equipment has an excellent combination of price and quality and is connected to a regular household electrical network without additional devices. It is used both in professional activities during construction and installation work, and in the home. With its help, you can reliably connect metal parts and plastic pipes to each other, as well as cut products made of ferrous and non-ferrous metals.

The welding equipment provides a wide range of additional functions and properties, such as: automatic increase or decrease of welding current, non-stick coating, overheating protection. They allow even craftsmen with minimal knowledge and experience to effectively use welding machines, plasma cutters and pipe soldering irons.

Types of welding equipment RESANTA

Inverter welding machines.

Equipment for welding polypropylene pipes.

Inverter plasma cutters.

Welding masks.

The range includes conventional and semi-automatic welding machines with functions of anti-sticking of the electrode and simplified ignition of the arc. Inverters installed inside ensure stable and economical operation from a single-phase network. In addition, the equipment provides automatic protection against excess loads.

Welding soldering irons are used for installing polypropylene pipes using fittings. They are equipped with heat regulators and a protective coating on the heating elements, which provides significant control during operation. The sword-shaped shape of the working part of the soldering irons allows welding of polypropylene pipes in hard-to-reach places and in confined spaces.

Plasma cutters are used to cut carbon steel and non-ferrous metals. Using an inverter plasma cutter, you can cut sheets up to 12 mm thick, depending on the basic technical characteristics of the selected model.

RESANTA welding masks have an automatic polarizing layer. Darkening occurs immediately after ignition of the arc to provide eye protection from flash, ultraviolet and infrared radiation. The filter sensitivity, degree of darkness and delay can be adjusted manually.

You can get more information, answers to your questions, learn more about the features of the model and buy RESANTA welding equipment at a competitive price in our retail store or online store.

Topic of publication: welding machine Resanta SAI 220 - consumer reviews and price of equipment for a home workshop.

SAI (inverter welding machine) Resanta is used for connecting metal structures with direct current. The low weight of the device allows a person to weld metal products in hard-to-reach places.

Welding machine Resanta SAI 220 - technical characteristics:

Design and principle of operation

The device's circuit boards are built into a metal case with ventilation holes. During operation, it is prohibited to close the forced ventilation system.

On the front panel there is (Fig. below):

current regulator (2);
indicators - network (3) and overheating (4);
negative and positive cable connection connectors (5, 6).

There is a “Network” switch on the back panel of the device.

Operating principle: Resanta converts alternating voltage into constant 400 V and then the direct voltage is converted into modulated voltage and rectified. Pulse width modulation is used to adjust the welding current.

When the overheating protection is triggered (signaled by a lamp on the front panel), the welder checks the serviceability of the cables and stops working.

The inverter is equipped with the following functions:

hot start (Hot Start) - quality of welding at the beginning of work;
Anti Stick - the electrode does not stick.

Watch an interesting video about how the device works:

Resanta SAI 220: instructions for use

Preparation for work and instructions for using the device:

Connect a grounding cable and an electrode holder to the power connectors (+ and -). Polarity is selected depending on the brand of electrodes.
The "Network" switch on the rear panel must be turned off.
Connect Resanta SAI 220 to the power supply.
Set the welding current regulator to the minimum value.
Turn on the device on the rear panel with the “Network” toggle switch.
Set the welding current regulator to the desired value.
After work, set the current regulator to the minimum value.
Turn off the device with the switch.
Disconnect the power cord and welding cables.

Prohibited:

use the inverter in a damp building and during bad weather;
use cutting tools (which create metal dust) near the device;
perform welding with faulty welding cables and power cord.

Storage rules:

store the device in a box at a temperature of -10°C +50°C, humidity no more than 80%;
storage is carried out without acid, alkali and dust vapors.

Possible causes of problems and solutions:

Electrical diagram of the welding machine Resanta SAI 220:

How much does the welding machine Resanta 220 cost?

This is a question that worries buyers! The price for a Chinese-assembled product is reasonable. As of May 12, 2016, Russian online stores sell the device for 8,660 rubles. You can find and buy a product a little cheaper.

Welding Resanta 220 - reviews from welders

Nikita, the device has been used for a year and 4 months:

I live in a village, in a city 40 km from me, there is a branch with a service center. This was the impetus for the purchase of the Resanta 220th. The seller joked that if it doesn’t burn out quickly, then the device’s longevity is guaranteed. I rarely do any work: I built a new fence, a fence in a cemetery, a stove for a bathhouse and other small jobs. During the operation of the device, there are no complaints about it. It’s bad that it’s not included in the kit, I had to buy it separately.

Sergey, Rostov-on-Don:

I bought the 220th Resanta 12 months ago. Negative review: at 180 V, an electrode with a diameter of 3 mm does not pull well, the arc disappears. When the arc is ignited, the lights in the garage go out. During the year of warranty, the transistors burned out 2 times. Plug-in cable connectors burn out all the time.

Conclusion: does not live up to its specifications.

Valera, production welder:

We have been using Resanta SAI 220 in support for 3 years. The device copes with the assigned tasks.

But at first there were problems: on the 5th day after purchase, the Chinese product refused to turn on. The reason is simple: conductive dust has settled on the main board. Protect the device from metal dust.

After 40 days the holder fell apart, after 2 months the ground terminal had to be replaced.

The belt on the product wears out quickly and is very short. Can't be worn as clothing for a large welder or in winter.

The declared electrodes with a diameter of 4 and 5 mm are nonsense, they do not work. 3 or 3.25 mm is the ceiling and then at good voltage. Stainless steel is difficult to cook.

In terms of performance, he is an average welder. If you do not use thick electrodes, protect from metal dust, replace the belt and wires, then it will work in the household.

Inverter welding machine SAI-220 Resanta is intended for manual electric arc welding with a covered electrode.

The compact design, as well as the low weight of the device, allow the welder to move throughout the entire area of the work being performed.

Design and principle of operation of the SAI-220 inverter

Inverter welding machine SAI-220 made in a metal case. The front panel has a welding current regulator (Fig. 1, item 2), a “network” indicator (Fig. 1, item 3), an “overheating” indicator (Fig. 1, item 4), as well as power connectors for connecting welding cables (Fig. 1 pos. 5,6). Welding machine SAI-220 is equipped with a forced ventilation system 3, therefore, it is strictly forbidden to cover the ventilation holes in the housing with anything.

Principle of operation welding machine SAI-220 consists of converting alternating mains voltage with a frequency of 50 Hz into a direct voltage of 400 V, which is converted into high-frequency modulated voltage and rectified. To regulate the welding current, pulse-width modulation of high-frequency voltage is used.

Inverter SAI-220 has protection against overheating - if the protection is triggered (the light on the front panel lights up), you should make sure that there is no short circuit in the working cables and stop work without turning off the device for at least 5 minutes.

Welding machine SAI-220 equipped with the “ANTI STICK” (anti-sticking) and “HOT START” functions (hot start)

When starting welding, it is necessary to ignite the arc. This often leads to sticking of the electrode on the SAI-220 inverter. Welding inverter SAI-220, equipped with the “ANTI STICK” function, automatically reduces the welding current when the electrode “sticks”. Subsequently, after tearing off the stuck electrode, inverter SAI-220 resumes the set welding parameters.

To ensure better arc ignition at the beginning of welding, inverter SAI-220, equipped with the “HOT START” function, automatically increases the welding current. This will greatly facilitate the start of the welding process.

*Note. The figure shows the SAI220 inverter model. The panels of other models look similar.

Switch "Network"
Welding current regulator
Network indicator
"Overheat" indicator
Power terminal "-"
Power terminal "+"

SAI-220 delivery set

AIS "Resanta" 1 pc.
Cable with electrode holder 1 pc.
Cable with grounding terminal 1 pc.
Product passport 1 pc.
Packing 1 pc.

Show in full Collapse description

The Resanta SAI 220 welding machine is used for welding metal parts using an electric arc. Lightweight and not bulky, the unit is equipped with a durable strap for carrying the device. Not afraid of overheating. The welding current varies from 10 A to 220 A. It has anti-stick and quick start systems. The circuit is based on IGBT transistors.

Basic parameters

Maximum power – 6.6 kW;
Maximum current value - 220 A;
Minimal. current value – 10 A;
PV at max. current – 70%;
Voltage – 220 V;
Minimal. input voltage – 140 V;
Electrodes (wire) – 2 – 5.0 mm;
TIG welding - no;
Dimensions – 190x325x315 mm;
Weighs – 4.9 kg.

Comes with:

carrying strap;
cable with electrode holder;
grounding cable;
box.

Advantages

the welding current varies from 10 to 190 A, which guarantees more accurate welding and neat seams;
protection from damage caused by external influences, thanks to a durable and wear-resistant metal case;
“anti-sticking” and “quick start” systems.
efficient air cooling;
The plastic handle makes it easy to carry the unit;
durable strap for carrying the device;
protection from strong heat;
does not require servicing.

The welding inverter Resanta SAI 220 can be purchased in our online store at an affordable price. Delivery in Moscow within the Moscow Ring Road - 300 rubles, check the cost of delivery in the Moscow region with the operators, the cost of delivery in Russia depends on the remoteness of your region.

Our managers will be happy to answer your questions and help you choose the right products.

Reading time: 5 minutes

In the last 10 years, inverter welding using inexpensive welding machines has gained popularity among welding students, novice craftsmen and summer residents. At the moment, the most popular type of welding machines in any specialized store are budget inverters costing up to $200. Manufacturers often supply such devices with a large set of components and offer relatively good characteristics for this price.

One of the most popular brands producing household-grade inverters is Resanta. Their products are liked by welders for their acceptable build quality, affordable price and wide variety of models. In this article we will tell you in detail about the inexpensive inverter welding machine Resanta SAI 220 and its modifications. You will learn the main technical characteristics and features of each model.

Welding machine Resanta SAI-220

Resanta SAI 220 (Resanta 220A) is the penultimate model in the line of budget SAI inverters. Only the modification is 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, they usually use expensive, powerful inverters that cost $10,000.

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.

The functionality is standard for this class of inverters. There is a built-in cooling system and a warning about dangerous overheating. There are functions due to which the electrode does not stick to the metal, and the arc is easier to ignite. But we don't recommend using these features all the time. Turn them off from time to time and try to light the arc yourself and set the welding mode correctly to avoid sticking.

The equipment is also standard. In addition to the inverter, the box contains detailed instructions, welding cables, a ground clamp, etc. We do not recommend using these components; it is better to immediately buy better and more reliable ones.

Welding machine Resanta SAI 220PN

Inverter welding machine Resanta model SAI-220PN is a real find for all country craftsmen. The power of the welding inverter is sufficient for repairs and home-made products, the dimensions are small, and at the same time, the SAI-220PN model is capable of operating even at low voltage or during fluctuations in the power supply network. And this problem is familiar to most summer residents, since often in gardening communities the power grid is really weak, even in summer.

You no longer have to buy and connect a voltage stabilizer to start welding. Just connect the Resanta SAI 220 PN welding machine to a 220V outlet and you can get down to business. If you have welding skills, you can achieve good quality seams.

The Resanta SAI 220PN welding machine has a convenient digital panel. All indicators are clearly readable in the sun. The inscriptions on the body are clear and large, even an elderly person with poor eyesight can see them. The adjustments are intuitive, there is no need to spend a lot of time understanding the functions. So the SAI-220PN model is also a good gift for your elderly relative who would like to replace an outdated bulky transformer with something more modern.

Welding machine Resanta SAI-220K

Welding inverter Resanta SAI-220K is a compact version of the basic model SAI-220. The characteristics of the SAI 220K practically do not differ from the characteristics of the SAI-220, but the weight and dimensions are significantly smaller. The weight of the compact version is less than 5 kilograms, so you can easily transport the inverter even in cramped public transport on the way to school or the countryside.

The inverter welding machine SAI-220K will also appeal to those who fight for every extra kilogram when traveling. After all, in addition to the apparatus, you also need to transport a mask, welding cables, overalls and other related things. And the final weight of all the equipment may be too much for frequent trips without a personal car.

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.

Instead of a conclusion

Buying a Resanta welding inverter model SAI 220 is a good decision if you are a beginner or a home craftsman. The basic model of Resanta SAI 220 will suit many: students, summer residents, and practitioners. The welding inverter Resanta SAI 220 PN will appeal to everyone who often travels out of town and faces unstable voltage in the power grid. And the Resanta SAI 220K model will be appreciated by everyone for whom an extra kilogram really matters.

In the article we did not mention the Resanta SAI 220 model in the case. It is no different from the base model. The only difference is the presence of a plastic case in the package. The case is not the most durable, but is suitable for infrequent trips and convenient storage.

Have you ever used the SAI 220 device or its modifications in your practice? Share your experience and opinion regarding Resanta inverters in the comments below. Your advice will help all novice welders. We wish you good luck in your work!