Five-Finger Dexterous Robot Hand (21 Active, Direct Drive)
The BrainCo Revo 3 is BrainCo's five-finger dexterous hand with 21 active degrees of freedom, direct drive and back-drivable joints: 5 joints in the thumb and 4 in each of the four fingers.
It offers a grip of 100 N or more, a fingertip pinch of 25 N or more, a 20 kg whole-hand load, 0.33 s joint open and close and a 1,000,000-cycle core joint life. Its four versions range from non-tactile to visuo-tactile. The weight is not published by the manufacturer.
Enterprise supply · specification support · integration engineering
The BrainCo Revo 3 is the high-end dexterous hand in the RevoLimb family from BrainCo (Chinese 强脑科技). All 21 degrees of freedom are active (thumb 5, four fingers 4 each), and the joints are direct drive and back-drivable. The manufacturer publishes a grip of 100 N or more, a fingertip pinch of 25 N or more, a 20 kg whole-hand load, 0.33 s joint open and close and a 1,000,000-cycle core joint life.
The weight is not published.
Four versions add tactile sensing step by step: the U21 without tactile sensing, the U21F with fingertip force, the U21T with 451 piezoresistive points and the U21VT with a visuo-tactile palm. The hand is controlled at 500 Hz over EtherCAT, CAN FD and RS-485; the SDK, ROS 2 driver and Isaac Sim, Isaac Lab and MuJoCo repositories are published openly. It is among the Booster T2's factory end effector options. BrainCo sells the hand on request only. Robotlar.org offers the Revo 3 to research labs and humanoid integrators in Turkey through enterprise sourcing, technical specification support and integration engineering.
2 use casesThe manufacturer's official variant matrix; the values are documented data.
| Feature | Revo 3 U21 | Revo 3 U21F | Revo 3 U21T | Revo 3 U21VT |
|---|---|---|---|---|
| Tactile sensing | None | 3-axis force at 5 fingertips | 451 piezoresistive points across the hand | 336 points plus 2,000 visuo-tactile markers in the palm |
| Tactile range | - | 0 to 20 N, 0.01 N, 100 Hz | 0 to 20 N, 0.01 N, 100 Hz | 0 to 20 N, 0.01 N, 100 Hz |
| Active DoF | 21 | 21 | 21 | 21 |
| Communication | EtherCAT, CAN FD, RS-485 | EtherCAT, CAN FD, RS-485 | EtherCAT, CAN FD, RS-485 | EtherCAT, CAN FD, RS-485 |
| Quote | Get a Quote for This ModelRevo 3 U21 | Get a Quote for This ModelRevo 3 U21F | Get a Quote for This ModelRevo 3 U21T | Get a Quote for This ModelRevo 3 U21VT |
Values from the BrainCo RevoLimb documentation, 13 November 2026. The tactile range row is given in the documentation without a per-version split. The weight is not published. Version, hand side and quantity are set in the quotation.
Revo 3 U21
Grasping, teleoperation and reinforcement learning that run on joint and camera data.
Revo 3 U21F
Work that needs pinch, slip and push-direction tracking through fingertip force.
Revo 3 U21T
Grasping and object recognition research that needs a contact map across the hand.
Revo 3 U21VT
Projects that want high-resolution visuo-tactile contact data in the palm.
The use cases the manufacturer defines for the BrainCo Revo 3.
All 21 degrees of freedom of the Revo 3 are active: 5 joints in the thumb and 4 in each of the four fingers.
The manufacturer gives a maximum active grip of 100 N or more and a fingertip pinch force of 25 N or more.
The U21T version carries 451 piezoresistive sensing points spread across the whole hand.
On the U21F version each of the five fingertips carries a 3-axis force module.
The U21VT version combines 336 tactile points and 2,000 visuo-tactile markers in the palm.
The manufacturer gives a core joint life of 1,000,000 cycles; joint repeatability is 0.1°.
The Revo 3 communicates over EtherCAT, CAN FD and RS-485 (Modbus RTU); the default RS-485 rate is 5 Mbps and the control rate 500 Hz.
BrainCo publishes a broad open software set for the Revo 3.
5 joints in the thumb, 4 in every finger; each with its own motor.
Back-drivable joints; force-position and impedance control.
Grasp diameter 10 to 150 mm.
Fingertip pinch 25 N or more; whole-hand load 20 kg.
EtherCAT, CAN FD, RS-485; 500 Hz control.
U21, U21F, U21T and U21VT.
3 images; tap to enlarge.
The BrainCo Revo 3 is a candidate for all of these jobs; in each scenario our catalogue also holds other bodies that can do the same work. The right robot follows from the job itself and the delivery timeline.
The team trains an in-hand reorientation policy in Isaac Lab with RevoLab, adds the U21T's 451-point tactile data to the observation and transfers the policy to the real hand with 500 Hz control. A 1,000,000-cycle core joint life eases the maintenance plan over long trial series.
An organisation buying a T2 wants a 21-active-joint hand installed and tested at the factory. Booster's documentation lists the Revo 3 among the T2 options; because there is no Revo 3 model file for the T2 in the booster_assets repository, the simulation setup uses BrainCo's own models.
The pilot tests a dexterous hand's capacity to hold tools and heavy parts with a 100 N grip and a 20 kg whole-hand load. Because the weight is not published, the arm payload calculation is made with a written value from the manufacturer.
18 values in 6 categories; data published by the manufacturer.
Verified on the manufacturer page on 13 November 2026.
An itemised quote for the BrainCo Revo 3 is prepared by configuration, quantity and delivery scope.
Supply model
Supply to Turkey is planned per project; import, delivery and commissioning scope are itemised in the quote.
Pre-sales assessment
Site and mission focused technical feasibility; specification and administrative process support.
Demo and site visit request
Send a demo request; availability and scope are settled in the call.
After-sales support
Lead time is stated in the quotation after confirmation from the manufacturer, based on quantity, version, hand side and import terms. Warranty scope and duration are stated in writing in the quotation according to the sourcing channel.
Source documents
Technical values come from the manufacturer's documents; verified on 13 November 2026. 6 documents at the bottom of the page.
Robotic system costs are optimised according to the selected hardware platform, additional sensor and payload configurations, and the integration scenarios specific to your site. Share your requirements and our engineering team will prepare a feasibility report and a pro forma quotation tailored to your organisation.
Direct contact and advisory line: 0850 532 6 777
The most common questions about the BrainCo Revo 3.
The BrainCo Revo 3 is a five-finger dexterous hand with 21 active degrees of freedom from BrainCo (Chinese 强脑科技). Its joints are direct drive and back-drivable; there are 5 joints in the thumb and 4 in each of the four fingers.
BrainCo does not publish the Revo 3's weight in its documentation. A value found in a third-party source is not verified, so it is not on this page. Projects that need an arm payload calculation request the weight from the manufacturer in writing.
The U21 is the non-tactile version. The U21F carries 3-axis force modules at the five fingertips. The U21T carries 451 piezoresistive points across the hand. The U21VT combines 336 points and 2,000 visuo-tactile markers in the palm. The tactile range is 0 to 20 N, the resolution 0.01 N and the sampling rate 100 Hz.
The maximum active grip is 100 N or more, and the fingertip pinch force 25 N or more. The whole-hand load is 20 kg and the four-finger load 5 kg. The grasp diameter is 10 to 150 mm.
EtherCAT, CAN FD and RS-485 (Modbus RTU); RS-485 defaults to 5 Mbps. The control rate is 500 Hz. Supply is 16 to 85 V; the maximum current at 24 V is 10 A.
Booster's T2 documentation lists the Revo 3 among the factory-installed end effector options. BrainCo also mentions its own RevoArm and RevoTron arm and platform. No BrainCo source was found for the Unitree H1 or H2; on other platforms fit is verified through engineering within the project.
brainco-revo3-sdk v2.1.0 offers Python and C/C++; brainco_revo3_ros2 is the ROS 2 driver (depending on SDK 1.0.4). RevoSim is for Isaac Sim, RevoLab for Isaac Lab reinforcement learning and Revo-MjLab for MuJoCo; Revo-Retargeting and Revo3-Demos are published as well.
On the Revo 3 all 21 joints are active and direct drive; the grip is 100 N or more, control runs at 500 Hz and there are four tactile versions. On the Revo 2, 6 of 11 DoF are active, it weighs 383 g and grips with 50 N or more; tactile sensing is on the Touch version only.
For BrainCo products Robotlar.org provides enterprise sourcing, technical specification support and integration engineering. Supply into Turkey is planned per project; the scope of import, delivery and commissioning is itemised in the quotation. BrainCo sells the hand on request only; prices are not published and are requested through the quote form.
Lead time is stated in the quotation after confirmation from the manufacturer, based on quantity, version, hand side and import terms. Warranty scope and duration are stated in writing in the quotation according to the sourcing channel.
