en.Wedoany.com Reported - At the Geely automobile manufacturing base in Yiwu City, Zhejiang Province, China, nearly a hundred Siasun brand industrial robots have been put into operation on the body welding main line, undertaking key process steps such as spot welding, gluing, stud welding, and riveting. This marks a significant case of Chinese domestic industrial robots achieving batch deployment in the field of automotive welding main lines.
The automotive welding main line has long been regarded as a core scenario for high-end applications of industrial robots. For over thirty years, this field has been dominated by foreign robot manufacturers. The welding process demands an average mean time between failures (MTBF) of over 80,000 hours for equipment, with high downtime costs for a single production line. Automakers have set stringent thresholds for equipment stability and consistency. The industrial robots deployed by Siasun in this project cover core stations such as the body main welding line, underbody line, left/right front door line, and side panel line. Some stations operate in parallel with international brand equipment, while others are independently handled by Siasun equipment, completing the automated welding process from individual stamped parts entering the line to the finished body-in-white exiting, supporting the mixed-model flexible production of multiple new energy vehicle models like the Lynk & Co 900.
Initiated in 2022, Siasun listed the "Key Technologies and Application Demonstration of Chinese Domestic Robots in Automotive Welding Production Lines" as a key research direction. Systematic R&D was conducted focusing on servo spot welding process adaptation, motion performance optimization, spot welding software control, and virtual simulation debugging. Geely Automotive Group, as the application party, provided deployment scenarios at factories in Yiwu and other locations. After four years of engineering verification, this batch of industrial robots has met industry reliability standards in batch applications.
On April 21, 2026, at a press conference held by the Information Office of the State Council of the People's Republic of China to introduce industrial and information technology development in the first quarter, the batch application of Chinese domestic spot welding industrial robots in automotive welding lines was highlighted as one of the representative achievements in the high-end and intelligent development of manufacturing equipment.
In a single welding production line at Geely's Yiwu base, Siasun equipment operates on the same line as German equipment that has long served the global automotive welding field, demonstrating stable performance in terms of cycle time consistency. On-site production line data shows that nearly a hundred Chinese domestic units have completed long-term continuous operation verification.
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