Spot welder is a kind of equipment that uses the resistance heat generated by the current passing through the contact surface of the joint and the adjacent area to weld. It is important in many fields such as electronics, electrical appliances, machinery, aviation and so on. According to different installation methods, it can be divided into fixed spot welding machine and suspended spot welding machine. These two spot welding machines play an important role in their respective markets.

The electrode arm of the hanging spot welder adopts high-quality chromium zirconium copper (cucrzr-1), which ensures the stability of welding performance, the service life of the welder and the strength of the electrode arm. During welding, the heating time is short, the heat is concentrated, there is no arc, no spark splash, no welding slag, no fusion welding accumulation, and no thermal deformation of weldments. In addition, after the innovation of welding machine, the path of gas path system increases, so it not only has high welding productivity, but also has low energy consumption (power saving 72.3%), and the weldment has beautiful appearance and good quality. The hanging spot welder adjusts the heat by changing the thyristor conduction angle through the welder controller, so it is easy to realize mechanization and automation, so it can be matched with the robot for full-automatic welding operation.

The fixed spot welding machine, including rail holding, hanging spot welding machine, C-type welding tongs and frame, has reasonable design, simple structure, convenient and fast welding and good welding effect. It can complete the one-time welding of large-size workpieces, reduce the labor intensity of workers, improve work efficiency, relieve the production pressure of small piece production workers, and solve the production bottleneck of welding. At the same time, the transformation design of the spot welding machine of the utility model also shortens the welding machine procurement time and saves the production cost and welding machine procurement cost.

Spot welding equipment can be effectively used in production because it can better reduce production cost. Low carbon steel, low alloy steel, stainless steel, coated steel, plate and round steel are its main base materials.