Welding inverter Resanta SAI 190, 190K, 190 PN, 190 PROF

Welding equipment from Resanta company

The Resanta company was created by Latvian engineers in 1993 to produce voltage stabilizers. Later, production was expanded and production of welding equipment began. The choice was made in favor of inverter models.

Currently, thanks to reliability, convenience and beautiful design, Resanta inverters have conquered the markets of many countries. It’s no wonder that they are made in China and are tested before shipping.

Resanta welding machines

The welding inverter Resanta SAI 190 in various designs is most often used in everyday life. This choice is explained very simply:

Typically, welders use electrodes with a thickness of 3 mm. To ignite them, it is enough to set 140 A, but a current reserve is required, since you cannot cook at the maximum load; when cutting metal, the load increases, and power is lost when using an extension cord.

Resanta with a maximum current of 190 A has the necessary reserve.

In addition, a welding machine with a higher current value has a higher cost.

Thanks to special modes, it is easy to master all the subtleties of welding work. These include: accelerated ignition when touching the seam and easy removal of a stuck electrode.

Types of welding equipment Resanta

All welding equipment of this Latvian manufacturer can be divided into several series, differing from each other in the purpose of the equipment and its scope of application: SAI, PN, PROF.

SAIPA series

The models in this line are similar to those that the company produces in the SAI series, but here a wire pulling mechanism and a special gas valve are added to the devices. You can control the welding wire feed rate from the front panel of the device. The gas connection is made through a valve on the back of the device, and the wire spools are replaced from the side. The most famous model of this series is SAIPA 165.

PN series

Models of this line are optimal for use by non-professionals at home - for summer residents and owners of private houses. These inverters are capable of operating at 140V grid voltage, making them especially suitable for use in rural areas and places where power outages are a common problem.

PROF series

The devices in this series are intended for professional use. The devices operate even at a very low voltage of 100 V without loss of welding quality. These units are often used on construction sites.

SAI series

It stands for “inverter welding machines” based on the first letters of the abbreviation. These devices were the first in the company's line of welding equipment. Units of this type are used for welding steel structures with electrodes in a gas-protected environment. The devices of this line are characterized by light weight and compact dimensions.

Regarding Resanta inverter welding machines, reviews are especially respectful of such devices in this series as Resanta 160 and Resanta 190. Respect for these and other models is explained by their reliability and durability. Below is an overview of the basic characteristics of these models.

Inverter Resanta SAI 190

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Video review of the welding machine:

For reliable welding of metal workpieces with an electric arc, the Resanta SAI 190 welding inverter was developed, which has the following technical characteristics:

Power supply 220 V.
Peak load 5 kW.
Fast recovery after overheating (duty cycle – 70%).
There are ways to instantly ignite and prevent electrode sticking.

Positive user reviews from using the Resanta SAI 190 inverter:

Easy setup and operation.
In the event of a power failure, the inverter remains operational for some time.
High-quality protection against overheating. For cooling, two fans are installed. One cools the block of IGBT transistors, and the other cools the block of diodes. The indicator promptly notifies you of overheating.
Unlike other models, an automatic switch is installed that trips when overloaded.

Among the shortcomings, the following points were noted:

Short welding cables.
It is difficult to set the exact current value, since the regulator has increased sensitivity.
There are restrictions on operation and storage due to the electronic filling.

Review of inverter equipment Resanta SAI 190

The inverter device for welding Resanta SAI 190 is a reliable source of direct current with the ability to operate under significant voltage drops in the electrical network. If we compare the Resanta inverter with a conventional transformer , then Resanta has many advantages, including simplicity of spatial arrangement, small dimensions, and light weight.

Positive consumer reviews indicate the advisability of financial investment in the welding inverter of the product in question, and you need to figure out why?

Technical data:

Mains frequency – 50 Hz;
Mains voltage – 220 V;
The maximum level of current consumption is 25A;
Idle voltage – 80 V;
Adjustable current level – 10-190A;
Electric arc voltage 190-27 V;
Load duration at 190A – 70%;
Cooling system – forced, air;
The maximum cross-sectional size of the cathode is 5 mm;
Protection level – IP 21;
Device power – 5 kVA;
The weight of the device is 4.7 kg.

The Resanta model inverter welding device includes the Resanta inverter unit itself, a wire with a grounding terminal , a wire with an electrode holder, a passport with a manual and user instructions. If the inverter for welding does not have this configuration, you need to contact another sales office.

Resanta brand SAI 190 K

Video review of the welding machine:

The next in the line is the Resanta SAI 190 K inverter, which has the following characteristics:

Highly compact.
Supply voltage 220 V/50 Hz.
The highest electricity consumption is 5 kW.
Thanks to special modes, the electrode quickly ignites and is protected from sticking.
In case of overheating, rapid recovery is provided (PV - 70%).
Use of IGBT transistors in an electronic circuit.

Positive user reviews about the welding inverter Resanta SAI 190 K:

High-quality protection against overheating. For cooling, forced ventilation of the unit is used. The indicator promptly notifies you of overheating.
To carry out welding, basic knowledge and a little practice are enough.
Convenient carrying strap.

Negative user reviews:

The board is not filled with compound. If metal dust gets on it, it burns.
Insufficient length of welding cables.
Due to the electronic filling, strict storage conditions. It is not recommended to store in a cold room in winter.
Welding cables are made of aluminum, so they heat up at high currents.
There is no screen to control the current value. It is difficult to make correct adjustments in the dark.

Principle and features of work

The device is successfully used for electric arc welding. Welding occurs with direct current using stick electrodes in manual mode. Low and medium intensity electrodes are compatible for this model.

The device, receiving alternating voltage at the input from the network, converts it into direct voltage. At the next stage, it converts the resulting DC voltage into a high-frequency voltage at the output.

Design features allow you to regulate the welding current during operation of the device. For this, the principle of pulse width modulation is used.

For those who are not yet familiar with devices like the Resanta SAI 190, the instructions for use will be a useful aid, which contains useful information about the features of its operation.

Design

Each SAI 190 model is equipped with a comfortable handle and a shoulder strap, which, combined with the model’s low weight (up to 5 kg) and compact dimensions, allows it to be carried comfortably.

Also, all of them have a safety class of IP 21, which ensures relatively safe user operation and low resistance to negative environmental conditions, such as gas pollution, dust and high humidity. However, the device has overheating protection with automatic power off.

Air-type cooling is modernized and is performed using twin fans, which allows the device to be operated at temperatures up to +40 degrees.

Resanta SAI 190 PN

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Video review of the welding machine:

The welding inverter Resanta SAI 190 PN has the following technical characteristics:

Mains power 140 - 240 V.
Maximum power consumption 5 kW.
The device does not overheat if seven minutes of welding alternate with three minutes of “rest”.
There are ways to improve the quality of the seam. This includes accelerated ignition of the electrode and protection against sticking.

Positive user reviews about the Resanta SAI 190 PN inverter:

Rarely does the device overheat. Convenient control over overheating. An overheat indication is displayed on the front panel.
The front panel has a plastic cover that reliably protects from dust, dirt, and welding drops.
The length of the welding cable allows you to comfortably weld at a distance from the inverter.

Disadvantages of the model according to users:

The switch on the rear panel is not suitable for use with gloves.
Increased sensitivity of the current regulator, so it may go astray.
Aluminum welding cables are heated in steel mating connectors located on the block.

Resanta SAI 190

The price in stores for the Resanta 190 welding machine is about 9 thousand rubles. This inverter operates at a mains voltage of 220 V. The current strength is manually adjusted, depending on the type of welding work and depending on the diameter of the electrodes. For every 7 minutes of work there should be a 3 minute break when welding with this machine.

The device is equipped with built-in overheating protection and a number of useful functions - hot start, anti-sticking, arc force. The welding current is adjusted in the range from 10 to 190 Amps. In addition, the device does not take up much space and weighs little.

Negative user reviews about the Resanta 190 welding machine are often associated with complaints about short power cables. Owners also complain that at temperatures below -25 C the fan stops working. The last complaint illustrates an example of a violation of the operating rules of the device, since the operating temperature indicated by the manufacturer is from -10 to +40 C.