WAIC惊现全球最小微型无框力矩电机！

TL;DR - MARHE launched its third-generation HummingDrive frameless torque motors at WAIC, claiming the world’s smallest series. The compact, high-torque motors target dexterous humanoid hands, surgical robots, exoskeletons, and other space-constrained systems.

• Models span 9.9–20 mm in outer diameter, with the smallest weighing 3.5 g and peak torque reaching 12.33 mNm.
• The motors combine 1.6 T rare-earth permanent magnets with a Halbach topology to increase air-gap magnetic flux and torque density.
• Manufacturing requires precision forming, multidirectional magnetization, micron-scale automated assembly, and ultrathin carbon-fiber rotor reinforcement.
• MARHE developed the series over two years in collaboration with humanoid-robot companies and research teams.