BrainCo Revo 3-21 Touch Robot Hand
In stock
- BRAND:
- BRAINCO
- MODEL:
- REVO 3-21 TOUCH
- ORIGIN:
- China
- Warranty:
- 12 MONTHS
- AVAILABILITY:
- SUBJECT TO AVAILABILITY
- SKU:
- BrainCo-Revo-3-Touch
BrainCo Revo 3-21 Touch Robot Hand
Anyone who has watched a robot hand close on a part and then asked "did it actually grip that well?" knows the gap between moving and knowing. The BrainCo Revo 3-21 Touch Robot Hand is built for closing that gap: a fully actuated hand whose palm reports contact back to the controller, so the machine has a way to judge a grasp and not just carry one out.
The product is available through this page, by quotation.
Background
BrainCo and the Revo 3 generation
BrainCo is a Hangzhou-based brain-computer interface company. The Revo 3 is the third generation of its robot dexterous hand, and the sources name four versions of it: Revo 3 U21, Revo 3 U21F, Revo 3 U21T and Revo 3 U21VT. The hand on this page is the Revo 3 U21T, and every figure in this article belongs to that version.
The four versions share the same published platform figures for degrees of freedom, hand dimensions, supply voltage, payload, repeatability and communication interfaces. What separates them is the tactile layer. The sources list no tactile distribution for the U21, fingertip tactile for the U21F, and full-palm tactile for the U21T and the U21VT. The wider range is gathered in the BrainCo Revo 3 category.
Positioning and key technology
The Revo 3 is described as a biomimetic dexterous hand designed for industrial automation, scientific research and advanced robotics manipulation. It carries 21 independent motors that give 21 fully active degrees of freedom, all direct-driven and backdrivable, in a compact and lightweight form factor.
On the Touch version, a full-palm piezoresistive array with 451 points sits across the palm. The hand also carries an IMU and a temperature sensor on the mainboard. It is rated for over 1,000,000 joint flex cycles, which matters to anyone planning long test campaigns or repeated cell operation.
Technical Specifications
| Specification | Value (Revo 3 U21T) |
|---|---|
| Total degrees of freedom | 21 (direct-driven and backdrivable) |
| Motors | 21 independent motors |
| Hand dimensions | 216 × 108 × 50 mm |
| Supply voltage | 16–85 V |
| Max current | 10 A (24 V) |
| Max active grip force | ≥100 N |
| Max fingertip pinch force | ≥25 N |
| Total hand payload | 20 kg |
| Four-finger payload | 5 kg |
| Repeatability | 0.1° |
| Joint open/close time | 0.33 s |
| Grasp types | 33 (Feix GRASP taxonomy); full score on the Kapandji opposition test |
| Communication interfaces | EtherCAT / CAN FD / RS-485 |
| Communication frequency | 500 Hz |
| Onboard sensors | IMU (mainboard), temperature (mainboard) |
| Tactile distribution | Full-palm tactile |
| Tactile type | Full-palm piezoresistive array |
| Tactile array points | 451 (piezoresistive) |
| Durability | Over 1,000,000 joint flex cycles |
Specifications as published by the manufacturer; confirmed against the datasheet at quotation.
The manufacturer has not published the weight, the IP rating, the box contents, the operating temperature range or the hand material; they are confirmed at quotation.
What makes the Touch version different from the Basic version?
The mechanical platform is the same, so the difference is what the hand can tell you. The BrainCo Revo 3-21 Basic Robot Hand has no tactile distribution listed in the sources. The Touch version adds a full-palm piezoresistive array with 451 points, which gives a controller information about where an object meets the palm.
For teams who only need motion, that extra layer may not be needed. For teams studying grasp quality, in-hand adjustment or contact-aware control, it is the reason to choose this version.
How does the Touch version compare with the V-Touch version?
The sources list full-palm tactile for both the U21T and the U21VT. If you are weighing the two, compare the BrainCo Revo 3-21 V-Touch Robot Hand with this page and ask us at quotation what separates them for your project. The fact sheet does not give the difference beyond the shared tactile distribution, so we do not guess at it here.
Who is the BrainCo Revo 3-21 Touch Robot Hand for?
Research labs are the clearest fit. A hand with 21 active degrees of freedom, 33 covered grasp types and a tactile palm gives manipulation researchers a lot to work with, and the C/C++ and Python SDKs, compatible with Linux and Windows and with ROS support, fit the tools labs already use.
Automation engineers will notice the EtherCAT, CAN FD and RS-485 interfaces and the 500 Hz communication frequency. Robotics developers building advanced manipulation systems will value the backdrivable direct drive. If you need a hand without tactile sensing, look at the Basic version.
What is the BrainCo Revo 3-21 Touch Robot Hand used for?
- Manipulation research. Study grasp strategies using 21 active degrees of freedom and palm contact data.
- Industrial automation. Handle parts in cells that already use EtherCAT, CAN FD or RS-485.
- Advanced robotics development. Build and test dexterous behavior on a platform with C/C++, Python and ROS support.
- Grasp taxonomy work. Explore the 33 grasp types of the Feix GRASP taxonomy on real hardware.
- Contact-aware control. Use the 451-point palm array to learn where objects sit in the hand.
- Durability testing. Run repeated cycles on a hand rated for over 1,000,000 joint flex cycles.
Pricing and Availability
We do not print prices on this page; the call to action is a quotation. Delivery, customs and support are arranged with the quotation. The BrainCo Revo 3-21 Touch Robot Hand is available on this page.
Frequently Asked Questions
How many degrees of freedom does the hand have?
It has 21, driven by 21 independent motors. The drive is direct and backdrivable.
Which communication interfaces does it support?
EtherCAT, CAN FD and RS-485, with a communication frequency of 500 Hz.
What tactile sensing does this version have?
A full-palm piezoresistive array with 451 points. The mainboard also carries an IMU and a temperature sensor.
What software is available?
C/C++ and Python SDKs for Linux and Windows, plus ROS support.
How should I power it?
The manufacturer recommends a stable 24V DC power supply rated at least 100W, to reduce the risk of voltage drop.
What is the payload?
The total hand payload is 20 kg and the four-finger payload is 5 kg.
Where can I buy the BrainCo Revo 3-21 Touch Robot Hand and what does it cost?
It is available through this page, by quotation. We do not publish prices; request a quotation and we will confirm the details with you.
Summary
Moving is only half of handling an object; the other half is knowing how it sits in the hand. The BrainCo Revo 3-21 Touch Robot Hand answers both with 21 independent motors and a 451-point full-palm tactile array. If that is what your project needs, this page is the starting point.
