1. According to your own capital budget, the price ranges from 20,000 to hundreds of thousands, and different nut spot welding machines are selected according to different price points;
2. According to the requirements for the effect of welding parts (welding strength, welding torque, welding appearance and welding efficiency, etc.), AC spot welders, intermediate frequency spot welders, energy storage spot welders, and variable frequency spot welders can weld nuts; Starting from the torque requirements of welding, general pneumatic AC projection welders can meet the requirements. If you want to meet the requirements of strength pull-through, torsion, and penetration, you need an intermediate frequency inverter spot welder, which requires penetration and penetration. If the tooth cannot be returned, an energy storage type spot welding machine is needed. For higher requirements, it is necessary to use a variable frequency spot welding machine to meet the requirements of torque, appearance, strength, screw protection, welding appearance, welding efficiency and low requirements for the power grid. Welding machine and use with automatic nut conveyor. When choosing a nut spot welder, pay attention to the power margin of the spot welder, which may only meet the current weldment requirements. If the weldment requirements are higher, it may not be able to meet other weldments, so this is also Points to pay attention to
3. Some three-phase power grids required by the power grid are not enough, and they are found to be unusable after purchase; conventional spot welding machines have relatively large requirements for power grids, and AC spot welding machines, intermediate frequency spot welding machines, and energy storage spot welding machines have high power, so users must pay attention to If the power grid cannot meet the nut welding requirements, you can choose a frequency conversion spot welding machine, which is also the first choice of many users.
4. The selection of nut spot welding head, from the nut welding to the general situation, as long as there is torque, the material is carbon steel, stainless steel, hot and cold rolled plate, the material of the electrode head is selected from chrome zirconium copper with ceramic positioning pins But with the development of industry, the welding concentricity of nut hole and sheet metal hole requires high concentricity, accurate positioning, more and more automatic nut conveyors and galvanized nut welding, so KCF positioning pins or higher precision must be used. locating pin to use with,
