The Latvian manufacturer of electrical equipment "Resanta" in the domestic construction and installation industry is well known for its welding equipment. The equipment of this company is inexpensive, but at the same time it provides an optimal set of functions with high performance indicators. Such characteristics fully apply to the Resanta apparatus SAI 160 PN, which combines the convenience of household welding equipment and the working capabilities of a professional tool.
Model Overview
The device is a manual inverter welding inverter . Purpose - performing electric arc welding using coated electrodes under direct current. The working filling is enclosed in a compact metal case, allowing the operator to freely move around the work platform in the access zone of the protective gas environment. The front panel of the device has regulators of current values, as well as indicators with network readings, information about overheating and connected cables. Since the design of the welding inverter "Resant" SAI 160 PN is supplemented by a forced ventilation system, it is strictly forbidden to cover the air circulation openings during operation. The main equipment of the device, in addition to the technical passport and packaging, includes a cable with an electrode holder and grounding terminals with a connection system. Case for the device is not provided.
Equipment specifications
The model refers to semi-professional welding equipment, which is confirmed by its technical and operational indicators. The nominal characteristics of Resanta SAI 160 PN are as follows:
- The operating voltage is 220 V.
- Input voltage is a minimum of 140 V.
- The voltage of the device in idle mode is 80 V.
- The maximum current is 160 A.
- The minimum current is 10 A.
- The brand of welding wire is DX25.
- Design protection class - IP21.
- Weight - 6.2 kg.
Separately, it is worth noting the inclusion duration coefficient (ON), which is 70%. This is the operating time of the device under maximum load without interruptions. A value of 70% is the standard for welding machines of this level and in practice means that the user will be able to work for about 7 minutes, after which a technical break of 3 minutes will be required, etc. Pauses are required to allow the machine to cool after high temperature loads.
Technological features
Resanta inverters usually do not indulge in wide functionality and the availability of innovative control systems, which leads to their low cost. Nevertheless, the developers of AIS 160 PN managed to offer a number of interesting additions. To begin with, it is worth noting the adjustment tools and the digital control panel. Setting the welding current is carried out according to the principle of pulse-width modulation of voltage, which increases the accuracy of the thermal effect on the workpiece. Of course, much will depend on the operator’s skills in handling regulators. Also, the Resanta welding machine SAI 160 PN received the functions of “anti-sticking” and “hot start”.
In the first case, Anti Stick technology is used, thanks to which, at the very beginning of the arc ignition, the apparatus briefly reduces the current strength so that the electrode does not stick to the surface of the workpiece. The user gets rid of unnecessary manipulations at the crucial moment of ignition. As for the “hot start” system, it also helps in the beginning of the operation, not allowing the arc to lose the accumulated electric potential. In other words, you do not have to expect a long set of thermal energy to start full-fledged welding.
User's manual
The workflow in accordance with the manufacturer's recommendations should be carried out in the following order:
- A complete cable with an electrode holder is connected to the power terminals of the “Resant” SAI 160 PN and the grounding system is connected. At this stage, it is important to observe the polarity, given the brand of electrode.
- The “Network” switch should initially be in the off state. The device is connected to the network.
- The regulator of the minimum welding current is checked, which must also be in the off position. Then it turns on.
- The main welding works with ignition of the arc, melting of the electrode and the workpiece.
- After completion of work, the current regulator is set to the minimum value.
- The device is turned off via a switch, and then disconnected from the network.
Operational safety
In the process, it is important to comply with the rules of operation of electrical installations, since the inverter under consideration belongs to the first class of danger from the point of view of electric shock. You should start by connecting the already mentioned grounding system to the network. Checked and working conditions. The case of the inverter SAI 160 PN Resanta should be able to freely circulate air through the process holes. Also, the room itself should be well ventilated. Special attention is paid to personal protective equipment. Work operations should be carried out in a protected headgear, welding mask (it is advisable to use models of the "Chameleon" format), gloves and a heat-resistant overalls.
Maintenance Instructions
In conditions of regular and active use of the device, it should be systematically audited and available repair operations. Inspection is carried out on mechanical connections, housing, electrical infrastructure and auxiliary devices. If possible, it is worth checking periodically the correct operation of the indicators. Indications are tested by measuring instruments - in particular, an electromagnetic multimeter. The most common technical problems with the Resanta apparatus, the AIS 160 PN, are overheating and low power. The cause of the first problem may be the excess of the continuous welding coefficient discussed above, as well as excessive accumulation of dust under the body. Low power, in turn, is explained by the use of poor-quality or simply unsuitable wiring characteristics or the use of a wet electrode. In general, moisture as such poses a serious threat to inverter welding equipment, so the device should be carefully isolated from moisture and water vapor.
Positive feedback from owners
Many praise the model for its informative digital display and general ergonomics of use. The controls, coupled with indicators, allow you to monitor the workflow in great detail, fixing the risks of overheating and overvoltage. The technical and structural reliability of the Resant inverter SAI 160 PN is also noted. Reviews, in particular, positively evaluate the behavior of the device in street conditions without a special protective environment. Only consumables are subject to systematic replacement, but the main working units last up to 3-5 years without the need for repair. The quality of welding itself leaves a good impression. The seam is smooth and with minimal deforming flaws. Moreover, even beginners can count on a good result, to the aid of which automatic arc control systems come.
Negative owner reviews
The developers of this inverter did not make tangible miscalculations, but individual minor errors are nevertheless detected. Most criticism concerns short power wires, which is why many owners have to update complete cables immediately after purchasing the device. There are also problems with detachable fittings - perhaps, technically, this is the weakest point, as it is made of plastic. In addition, operational limitations of the Resanta SAI 160 PN device are noted. Owner reviews indicate the lack of the possibility of using TIG welding, which refers to common installation operations, both in the home and in the professional field.
Conclusion
Taking into account all the pros and cons, we can say that the equipment in question is optimal for home use. The model performs well in chores in the garage or in the country, when you need to mount a metal frame, weld individual elements to the structure or repair leaked plumbing. That is, Resanta SAI 160 PN is a good assistant in one-time repair operations that do not require high power. The device’s resistance to network differences also speaks in favor of the operation remote from home. As for the cost, it is about 7 thousand rubles. This is a small amount for a well-assembled inverter with decent functionality and convenient controls.