As humanoid robots inch closer to mass commercialization, a persistent challenge continues to hinder their development: how to provide enough torque and power density within the strict weight and space limitations of dozens of robotic joints. Many experts regard addressing this issue as a prerequisite for advancing humanoid robots from experimental prototypes to practical applications.
Taiwan-based electronic components manufacturer Guangyu (廣宇) , a subsidiary of the Hon Hai (鴻海)Group, sees axial flux motor technology as a potential path forward.
Guangyu announced it has joined forces with its parent group to invest EUR$32 million (approximately USD$34 million) in Magnax, a Belgian startup specializing in advanced motor technologies. The transaction gives the two companies a combined 52% stake. Guangyu investedEUR$32 million, securing a 37.28% share and becoming Magnax's largest shareholder, with majority representation on the board and effective control.
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A Strategic Shift Toward Core Components
For decades, Guangyu has been known primarily as a manufacturer of traditional wire harnesses. The Magnax investment marks a clear strategic shift toward higher-value, mission-critical components, particularly in emerging robotics applications.
“This investment represents a major step in Guangyu's transformation from a traditional wire harness manufacturer to a supplier of core components,” said Chairman Lee Kuang-yao. “Through this partnership, we will be able to directly access key power technologies for humanoid robots and high-performance electric motors.”
Why Axial Flux Motors Are Gaining Attention
The central asset in the deal is Magnax's patentedyokeless axial flux motor (AFM) technology. Compared with conventional radial flux motors, AFM designs offer higher power density and torque density while maintaining a thinner and lighter structure—characteristics that are especially relevant for humanoid robots.
A typical humanoid robot requires power delivery across 40 to 50 joints, each constrained by strict limits on size and weight. Guangyu plans to focus on applying AFM technology to high-load joints such as hips and upper limbs, where compact design and torque performance are critical.
A Platform Technology Beyond Robotics
Magnax's motor technology is viewed by Guangyu as a platform that can be extended beyond humanoid robotics. The company has identified potential applications in data center cooling systems, industrial cooling fans, and electric vehicles—industries where efficiency, lightweight design, and energy savings are increasingly important.
To support this transition, Guangyu has launched its “3S” transformation strategy—Stretch, Shift, and Scale—aimed at expanding technological capabilities, shifting toward higher-margin applications, and scaling production through manufacturing and supply chain integration.
By combining Magnax's technology with Guangyu's manufacturing management expertise and the Hon Hai Group's supply chain resources, the company expects to enhance the feasibility of mass production. Related business is projected to begin contributing to revenue as early as 2027.
Guangyu plans to provide further details on its robotics and advanced manufacturing strategy at an investor briefing scheduled for January 22. The company has also begun discussions with multiple robotics firms as it seeks to establish a position within the emerging humanoid robot supply chain.
Driven by demand from robotics and high-end industrial applications, Guangyu expects continued growth over the coming years and has set a long-term target of reaching NTD$50 billion (approximately USD$1.56 billion) in annual revenue by 2028.
Whether axial flux motor technology can ultimately be scaled into commercially viable solutions remains to be seen. However, the Magnax investment signals Guangyu's intent to move beyond traditional manufacturing and toward a more central role in next-generation industrial and robotic technologies.
You've read it. Now let's talk. Follow us on X. Editor: Penny Wang
