Rainbow Robotics RB-Y1

A wheeled dual-arm humanoid mobile-manipulation platform from South Korea's Rainbow Robotics.

RB-Y1 is a wheeled humanoid robot that South Korea's Rainbow Robotics — founded by members of the KAIST team behind the HUBO humanoid, with Samsung Electronics becoming its largest shareholder after increasing its stake in early 2025 — unveiled in March 2024. Its upper body has two 7-degree-of-freedom arms, its waist is a single 6-degree-of-freedom “leg”-like torso that can bend and rise and lower, and it sits on a wheeled base below. Published specs: about 131 kg total weight, about 1.4 m tall, roughly 3 kg of single-arm payload, and a top driving speed of about 1.5 m/s. By using wheels instead of legs, it avoids the hard problem of balance control and can focus on bimanual manipulation and mobile manipulation, which is why it's commonly used as a research platform for collecting demonstration data and training policies such as VLA models.

ExampleA researcher teleoperates an RB-Y1 with VR to walk it up to a table indoors, bend at the waist, and lift a box with both arms, recording the data to train an imitation-learning policy.

Also called

RB-Y1

Related

Rainbow Robotics · Wheeled Humanoid Robot · Mobile Manipulation · Bimanual Manipulation · Samsung Electronics · Mobile Manipulator

Sources

RB-Y1 (Rainbow Robotics)
Rainbow Robotics unveils RB-Y1 wheeled, two-armed robot (The Robot Report)

As of

2025-01