Some requirements to pay attention to when purchasing welding machine

First, in the purchase of welding machine products, to the regular production enterprises or large shopping malls to buy, and to buy a high market share of the brand famous products. Do not covet cheap to buy in small shops, where the quality of the welding machine can not be guaranteed.
Second, when purchasing, check whether the nameplate on the product has the name of the manufacturer, production address, specifications and models, welding current adjustment range, load duration and input voltage and current, and then determine the welding machine you want to buy according to the work needs.
Third, the purchase can require the dealer to provide product quality inspection report or certificate. Because the welding machine product is a national mandatory certification product, it is necessary to confirm whether the product has passed the "3C" certification when purchasing. You can also check online.
Fourth, when buying, be sure to check whether the product has a ground screw, and the connection of the ground screw should be well grounded without paint. Whether the movement is clean, whether the insulation is damaged to ensure the safety of use, and if necessary, it can also be tested.
Before purchase, you can check the operation, conversion and installation of the switch on the panel, the power indicator light on and off, whether the fan is normal, whether the power part has abnormal vibration and buzzer, whether there is odor, whether there is discoloration and other heating phenomena on the appearance, to ensure the quality of the welding machine and give full play to the performance of the welding machine.
6. If you want to buy a gas shielded welding machine, check whether the accessories are complete before purchase, whether the wire feeder is oily, whether the rotation is smooth, and whether the connecting cable matches the exterior insulation is damaged to ensure the stability of the arc.