Pan-Good Creates Record-Breaking Axial Flow Electric Motor: Super Density and Rotational Speed

In the past, we have talked on various occasions about axial flow electric motors, and we have always highlighted their record-breaking performance and characteristics. In fact, this type of motor always combines great power with a significantly reduced size, but what a Chinese company has done seems to break every record.

Pan-Good, in collaboration with the Ningbo Institute of Technology and Materials Engineering and the Chinese Academy of Sciences, has developed an axial flow motor that utilizes a new magnetic material for permanent magnets. This material is specifically designed for this type of motor, enhancing the magnetic energy, high-temperature stability, and mechanical resistance, while also allowing for mass production.

The result is a super compact motor, like all axial flow motors, but with a power density that reaches an incredible level of 25.73 kW/kg, all while achieving a rotational speed of up to 18,000 RPM. This latter figure is particularly important, as it addresses the issue of structural deformation at extremely high rotational speeds.

A motor with these characteristics is obviously perfect for high-performance electric cars, as it can reduce weight and footprint while ensuring ample power, possibly even through a wheel motor. At the same time, the same concept can be reworked for other applications. The Pan-Good motor (sometimes also known as Pangoo) also has high torque density, up to 293 Nm/kg, which is about 22% more than comparable solutions, making it a perfect candidate for humanoid robots when configured correctly.

A robot equipped with these motors in the right places can have greater strength at the joints without increasing the weight and bulk of the components. The latest sector where these motors will be fundamental is in low-altitude electric aircraft, especially for eVTOLs (just yesterday, we discussed the buzz in the sector in China). This solution would allow for more powerful motors in multirotors, enhancing performance or reducing weight, all to the benefit of range at a given battery capacity.