BrainCo unveils Revo 3 hand

BrainCo has unveiled Revo 3, a robotic hand built to do more of its sensing at the fingers and palm instead of relying mainly on external cameras. (ehangzhou.gov.cn) In robotics, a “degree of freedom” is one independent motion, like a finger joint bending or a thumb rotating. BrainCo says Revo 3 has 21 active degrees of freedom and was released on April 9, 2026. (ehangzhou.gov.cn) The hand combines full-palm tactile sensing with fingertip visuotactile sensing, which means the fingertips use both touch and close-up visual cues to detect contact. BrainCo says the palm sensors resolve force down to 0.01 newtons and the fingertip system can detect deformation of about 130 micrometers. (ehangzhou.gov.cn) That setup targets a basic robotics problem: cameras can tell a robot where an object is, but they often miss what happens after contact. BrainCo says Revo 3 is designed for stable in-hand manipulation, not just picking an object up once. (ehangzhou.gov.cn) BrainCo says the hand can perform 33 grasp types, open and close at 3 hertz, deliver 20 newtons of pinch force and 70 newtons of five-finger grip force, and run at a 500-hertz control frequency. The company also says the hand supports position, impedance, Massachusetts Institute of Technology force-position, and zero-torque control modes. (ithome.com) The company is pitching Revo 3 as hardware for developers as much as for demonstrations. BrainCo’s GitHub lists software development kits, Robot Operating System 2 drivers, Unified Robot Description Format files, and examples for EtherCAT, Controller Area Network Flexible Data-Rate, MuJoCo, and Isaac-style simulation workflows. (github.com) That developer push follows BrainCo’s earlier hand products. BrainCo’s Revo 2 page describes a compact dexterous hand, and The Robot Report said in September 2025 that Revo 2 weighed 383 grams and produced 50 newtons of grip force. (brainco.cn) (therobotreport.com) BrainCo did not start as a humanoid-robot parts company. The company says it was founded in 2015 out of the Harvard Innovation Lab and built its business around non-invasive brain-computer interface systems before expanding into prosthetic and robotic hands. (brainco.cn) (brainco.tech) The practical bet behind Revo 3 is that richer sensing at the hand can reduce the amount of inference a robot has to do from a distant camera feed. BrainCo’s release frames the hand itself, not a rack of external sensors, as the place where more of that judgment now happens. (ehangzhou.gov.cn)