- 21 Degrees of Freedom Fully direct-drive, backdrivable joints across all 21 DoF enable inherent force sensing and natural compliance without gearbox friction.
- Full-Palm Tactile Sensing 0.01 N force resolution across the entire palm surface — beyond fingertip-only approaches — for multi-modal contact awareness during grasping.
- 500 Hz Control Loop High-frequency closed-loop control supports four distinct modes and 33 grasp types, exceeding the human hand's Kapandji range-of-motion score.
- Multi-Protocol Connectivity Supports EtherCAT, CAN FD, and RS-485 for integration with diverse robot controllers and industrial communication stacks.
- Wide Voltage Range Operates across 12–80 V input, enabling deployment on mobile humanoid platforms and lab power supplies alike.
- Modular Finger Configurations Modular design allows integrators to adapt finger configurations for specific tasks without procuring a new end-effector.
Description
The BrainCo Revo 3-21 Touch is a 21-degree-of-freedom dexterous robotic hand built on a fully direct-drive, backdrivable joint architecture, engineered for contact-rich manipulation tasks in humanoid robots and advanced automation platforms. Developed by BrainCo — a company founded at Harvard University's Center for Brain Science and holder of more than 360 patents in brain-computer interface technology — the Revo 3-21 Touch brings prosthetics-grade engineering to commercial robotic end-effectors. Every joint couples motor output directly to the finger without any gearbox or tendon transmission, so motor current serves as a direct proxy for contact force, and the hand complies naturally when objects push against it. A 500 Hz control loop supports four distinct control modes, covering 33 grasp types with a range of motion that exceeds the typical human hand's Kapandji score.
The defining capability of the Touch variant is its full-palm tactile sensing at 0.01 Newton force resolution, extending contact-awareness well beyond the fingertips to the entire palm surface. This multi-modal sensing — pressure-array data at the surface combined with torque sensing at every joint simultaneously — enables the kinds of in-hand re-orientation, tool manipulation, and delicate grasping that real-world humanoid deployment demands. The hand supports EtherCAT, CAN FD, and RS-485 communication protocols and operates across a wide 12 to 80 V supply range, making it compatible with a broad range of robot platforms and lab power sources.
Official Product Videos
Features
Specs
| Brand | BrainCo |
|---|---|
| Model | Revo 3-21 Touch |
| Degrees of Freedom | 21 |
| Joint Architecture | Fully direct-drive, backdrivable |
| Control Loop Frequency | 500 Hz |
| Control Modes | 4 |
| Grasp Types | 33 |
| Tactile Sensing Coverage | Full palm + fingertips |
| Tactile Force Resolution | 0.01 N |
| Communication Protocols | EtherCAT, CAN FD, RS-485 |
| Operating Voltage | 12–80 V |
Industries
Frequently Asked Questions
The BrainCo Revo 3-21 is priced at SAR 80,750 in your market. For volume or project orders, contact us for a business quote.
The Revo 3-21 Touch is a 21-degree-of-freedom dexterous robotic hand designed as an end-effector for humanoid robots and advanced automation platforms. It is used for contact-rich manipulation tasks that require precise force sensing, in-hand re-orientation, and natural compliance with objects.
Its fully direct-drive, backdrivable joint architecture eliminates gearbox friction, enabling inherent joint-level force sensing and natural compliance. Combined with full-palm tactile sensing at 0.01 N resolution and a 500 Hz control loop supporting 33 grasp types, it delivers multi-modal contact awareness across the entire hand surface.
The Revo 3-21 Touch is suited to humanoid robot manufacturers, robotics research institutions, and industrial R&D labs requiring dexterous manipulation, haptics research, and AI-based grasping development — spanning manufacturing, research, and embodied AI applications.
Yes, Robotix Market ships worldwide. The product carries the manufacturer's warranty as provided by BrainCo; no additional on-site installation or service is included.
You can add the product to your cart directly on Robotix Market, or use the quote request form on the product page for volume orders, integration questions, or custom configuration enquiries.
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