In December 2024, Zhongke Motong (Changzhou) Intelligent Manufacturing Co., Ltd. reached a strategic cooperation agreement with Greybo Intelligent Power Technology Co., Ltd. for the mass production line of hairpin stators.This collaboration will fully integrate the strengths of both parties in intelligent manufacturing and the field of new energy vehicle power systems, providing more efficient and reliable solutions for the global new energy vehicle market.

Greybo Intelligent Power Technology Co., Ltd. is a supplier dedicated to providing powertrain system solutions centered on electric motors and controllers for new energy vehicle manufacturers,established as a Sino-foreign joint venture by several U.S.-educated experts (founding executive team), listed companies, first-tier domestic automakers, and well-known investment institutions. The company's headquarters and R&D center are located in Shanghai, and a large-scale intelligent manufacturing base has been established in Xuzhou, Jiangsu, capable of supplying hairpin stators and rotors, power modules, and electric drive assemblies simultaneously. As a leading Tier 1 supplier in domestic technology, it holds core technologies in both electric motors and controllers, providing supporting services for first-tier domestic automakers such as Geely, GAC, and Leapmotor.

With the rapid surge in global demand for new energy vehicles, the electrification transformation of automotive powertrains is booming worldwide at an unprecedented speed. Hairpin motors, as the mainstream trend in the evolution of motor technology, are widely favored and actively deployed by both original equipment manufacturers and third-party suppliers.Over the past two years, hairpin motors have become a hotly pursued development direction in the field of passenger vehicle drive motors.Top domestic suppliers have also successively entered the R&D blue ocean of hairpin motors, which are expected to achieve rapid market expansion in the next few years, demonstrating a vigorous development trend.The cooperation between Zhongke Motong and Greybo will jointly promote the upgrade and optimization of the hairpin stator mass production line.

Zhongke Motong's Actual Customer Case

Zhongke Motong and Greybo will conduct in-depth cooperation around the hairpin stator mass production line, jointly developing efficient and intelligent hairpin stator mass production lines.

• The production line includes the following core equipment: wire forming/automatic winding into the core/pressing/expanding/twisting/laser welding/painting and coating/electrical performance testing.

• Wire forming machine: High-speed precision cycle of 1.5 seconds, leading in the industry. The forming machine boasts an astonishing high-speed precision cycle, completing a complex and critical forming process in just 1.5 seconds. Relying on advanced motion control systems and high-precision sensor feedback, it can precisely control every forming action.

• The high-speed laser de-painting process is a delicate touch in the hairpin stator manufacturing process. Using a high-energy-density laser beam, it can accurately and quickly remove the insulating paint layer from the surface of the hairpin, preparing for subsequent welding and other processes.

• Automation rate of 95%, OEE above 85%. From raw material feeding to the precision forming of hairpins, winding embedding, and final inspection and packaging, a series of complex processes are seamlessly connected and completed by intelligent automated equipment. High automation not only significantly improves production efficiency but also effectively reduces errors and quality fluctuations caused by human factors, ensuring that each hairpin stator meets nearly perfect consistency standards.

Zhongke Motong's hairpin stator mass production line has a capacity of 300,000 units/year,relying on its advanced automated processes, excellent precision manufacturing technology, stringent quality inspection system, and intelligent production control system. It meets the market's strong demand for hairpin stators while helping enterprises enhance their core competitiveness.

This strategic partnership between Zhongke Motong and Greybo marks the deep integration of both parties' outstanding resources and innovation capabilities in their respective fields, creating a new paradigm of cooperation.Both parties will continuously strengthen the research and application of innovative technologies, jointly creating top-tier intelligent manufacturing solutions. In every stage of project advancement, both parties will deepen multi-dimensional collaboration, jointly promoting the vigorous development of the new energy vehicle industry, and leading the industrial field into a new era of fully digitalized and intelligent manufacturing. The aim is to create a new situation of continuous high-speed and stable progress, injecting strong momentum into the transformation and upgrading of China's new energy vehicle manufacturing industry. Looking to the future, we are full of expectations and believe that both parties will achieve more fruitful cooperation results in the field of new energy vehicles.