RobStride Dynamics

RobStride Dynamics produces compact QDD (Quasi-Direct Drive) integrated actuator modules purpose-built for humanoid robot joints. Each unit integrates a brushless motor, planetary reducer, dual magnetic encoders, and driver board into a single sealed assembly. The RobStride 02 weighs just 405 g, the 03 weighs 880 g, and the high-torque 04 weighs 1420 g — covering a range of joint sizes from finger/wrist to hip and knee. All models use CAN bus communication and support 24V or 48V input. The "Small but Strong" design philosophy prioritizes torque density and integration simplicity for next-generation humanoid robot development.