The machine mainly fulfils the functions of lid and can welding, nugget trimming and welding quality inspection.

1. Ring spot welding process adpoted to ensure quick welding speed and high yield rate;
2. Marble platform driven by linear motor for high accuracy and stable operation;
3. Welding focus measured by laser sensor;
4. Improved co-axial turbo dedusting device;
5. Inline code scanning, NG tracking and NG sorting.