To weld parts with piece electrodes on the principle of an electric arc from direct current, an inverter "SAI Resanta 190" is used. User reviews suggest that the unit does not need to be regularly serviced, as it does household welding it meets the requirements and meets the declared technical parameters.
The connection of parts is carried out quickly, conveniently and accurately with the help of a high-quality seam that confidently forms the Resanta SAI 190 welding machine. The unit is characterized by a coefficient of performance of more than 90%, energy saving.
Its use is recommended for high-performance welding and cutting of ferrous and non-ferrous metal parts.
About the manufacturer
For more than 15 years, the Latvian concern Resanta has been producing a large number of items of electrical devices sold in the countries of near and far abroad. Trained professionals organize the interconnected work of a design office and production facilities in the city of Riga. A well-established production chain exists due to the stable operation of marketing and logistics services.
The welding inverter "Resanta SAI 190", which is one of the most successful products of the company's products, is popular with consumers and partners. The manufacturer earned trust due to the high quality of the devices, which is checked by the control service at each stage of the technological cycle. Great importance is given to the use of technical methods of management and control in the work of workshops and sites.
Unit Description
In order to use argon-arc welding, a valve burner is connected to the apparatus "SAI Resanta 190". Reviews say that for the implementation of semi-automatic welding, they acquire a mechanism that feeds the wire. The pulse modulator adjusts the values of the welding current, so even a novice welder makes a high-quality seam.
At the time of the appearance of the arc in the apparatus, overload is excluded, welding is connected to weak networks with unstable performance. Due to its light weight, the unit can be transported and transported in the trunk at any distance.
The device operates in 70 and 30% mode. The values indicate that seven minutes of work are replaced by a three-minute break. The indicator on the front wall indicates overheating, after the light comes on, the circuit is checked for short circuits, if they are not there, then the device is not used for 5 minutes or more to cool.
The welding inverter is cooled by fans that form a tunnel effect and powerful radiators of a large area. Welding works from a two-phase 220 V network, while the operating current indicators range from 150 to 243 V. The value of the welding current is set from 10 to 190 A.
Device features
Welding of Resanta SAI 190 PN is produced using IGBT modern production technology:
- the inverter works productively at low voltage;
- a smooth change in current indicators;
- when you touch the electrode, a soft ignition of the electric arc occurs;
- unit weight is reduced due to the use of modern power transistors;
- the design contains the function of a hot start, anti-stick electrode and uniform burning of the arc;
- the weld pool has a great depth;
- during operation, metal is sprayed in a minimal amount.
Technical indicators
All the energy consumed by the apparatus is spent on the operation of the arc and on the melting of the layer of the upper metal:
- the required voltage in the network for operation is 220 V with a deviation of 10%;
- the maximum value of the operating current is 25 A;
- arc voltage value - 27 V;
- forced air cooling;
- 5 mm electrodes are used;
- enclosure protection class - IP21;
- dimensions of the apparatus - 15 x 30 x 37 cm;
- unit weight - 4.7 kg.
The package includes an inverter, an electrode holder with a 2 m cable attached, a connecting terminal with a 1.5 m cable, a hammer brush, and a protective shield.
Welding machine manual
There are no special requirements to the household electric network for connecting the inverter. Zeroing of the apparatus occurs through the connection cord, therefore, the power outlet must be earthed when connecting the SAI 190 Resanta welding. The instruction recommends that you install machines at least 16A for connection.
Near the device do not use devices that produce a lot of dust, for example, a grinder, a gasoline and electric saw, a grinder. The switched on unit, even if it is idling, must not be covered or create other obstacles in the operation of the cooling system.
According to safety instructions, it is forbidden to work with welding in the rain or in very humid rooms.
If the inverter is brought into a warm room with frost, then turn it on no earlier than after a couple of hours needed to dry the condensate.
Inverter connection
The unit is connected to the network with the controller in the off state. Work and power cables are connected to an outlet or machine. With the help of the regulator, the minimum current for welding is set, only then the toggle switch is put into the “on” position. After work, turn off the "AIS Resant 190" in the reverse order. User reviews suggest that for efficient operation, the intersection of working wires and extension cords is not allowed. Cables are fully deployed from the coil during operation to prevent magnetic induction.
Work recommendations
It is not necessary to turn off the welding machine often , even if the indicator is on, just wait 10 or more minutes before cooling. In intermittent operation, after 7-8 minutes, welding is also not turned off, and the laid 3 minutes of rest are waiting in idle mode. Inverter-type equipment does not respond well even to minor inrush currents. They turn off the device if a break is planned for more than 40-60 minutes.
Periodically carry out cleaning of the internal cavities from the accumulation of dust and dirt, especially after prolonged shutdown or work in dusty conditions.
When lengthening the cable, the following sections select a larger diameter, which leads to a decrease in voltage drop. With an increase in length from 10 m, a wire cross section of 2.5 is taken.
Welding machine cost
The purchase price of welding ranges from 6800 rubles. up to 17 600 rubles. The device with the index "K 65" has the lowest cost. This is a simple unit for manual arc welding. The device with the Prof index is more expensive than all models, it differs in the ability to work even when the voltage drops to 100 watts.
"AIS Resanta 190". Reviews
What do customers think about this appliance?
Consumers respond positively to the operation of the Resanta SAI 190 welding machine. The price of the unit purchased in the store quickly pays off with effective work. The owners of the device believe that it is important to use the device that before starting work and before shutting down, you need to set the minimum current value. Regular cleaning will significantly extend the working life.
Users of the welding machine note the ability of the equipment to work with a wire feed mechanism for organizing automatic welding with the Resanta SAI 190 unit. Sometimes coolers deteriorate, and they have to be changed. Buyers note that in addition to welding ferrous steels, the unit works with non-ferrous metals and copes with the work with dignity. Consumers consider it important to constantly care for the working parts of the device.
As a result, we can say that the use of "Resants" is effective for private homes, cottages and small industrial facilities. To connect, no wiring replacement is required, the unit copes with work in networks with weak performance.