Potting Adhesive Selection for Humanoid Robot Joint Motors: ELAPLUS Helps Frameless Torque Motors Break Heat Dissipation Bottlenecks
With the advancement of AI technology, motion control algorithms and high-power-density motor technology, humanoid robots are evolving from conceptual designs into mass-produced products. Every joint, including robotic arms, knees, hips, ankles and dexterous hands, relies on motor systems featuring fast response, high torque and high precision. Frameless torque motors have become the core choice for driving humanoid robot joints. Featuring compact structure, light weight and high torque density, they can be directly integrated into robot joints, perfectly catering to the design requirements of miniaturization, lightweight design and high dynamic response for humanoid robots. As documented, frameless torque motors deliver fast response, low friction and high efficiency, well suited for joint drive applications of humanoid robots. However, challenges arise alongside these advantages: The smaller and more powerful a motor is, the harder it is to dissipate heat. For robot joint motors, frameless torque motors and servo motor stators, potting adhesives serve not only as protective materials, but also as key functional components for motor thermal management. ELAPLUS motor potting adhesives are specially formulated for humanoid robot motors. They deliver outstanding performance in thermal conduction and heat dissipation, electrical insulation, winding fixation, vibration resistance and long-term operational reliability for robot joint motors. 1. Why Do Humanoid Robots Adopt Frameless Torque Motors? A frameless torque motor is a frameless permanent magnet brushless synchronous motor, mainly composed of a rotor and a stator. The rotor is a rotating steel ring embedded with permanent magnets and can be directly mounted on the machine shaft. The stator consists of laminated silicon steel sheets and copper windings that generate electromagnetic force and are integrated inside the housing. Compared with conventional motors, frameless torque motors offer distinct advantages for humanoid robots: ■ High torque density: Delivers higher torque output within the limited space of robot joints. ■ Low inertia: Enables…
