Closing time
0.33 s
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Closing time
关节开合速度 0.33 s 0.33 s 0.33 s 0.33 s
Global Robotics
Revo3 is BrainCo's fully actuated five-finger hand for robotic manipulation, research and industrial automation development. It uses 21 independent motors: five active degrees of freedom in the thumb and four in each remaining finger. The manufacturer describes a backdrivable mechanism and provides C/C++, Python and ROS development support. Communication options include RS485, CAN FD and EtherCAT. Four configurations share the same actuation layout but differ in sensing, ranging from the non-tactile U21 to fingertip-force, palm-array and combined visual-tactile versions.
Source-backed claims. Configuration, workload and evidence type matter when comparing products.
0.33 s
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Closing time
关节开合速度 0.33 s 0.33 s 0.33 s 0.33 s
500 Hz
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Communication frequency
通信频率 500 Hz 500 Hz 500 Hz 500 Hz
EtherCAT / CAN FD / RS-485
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Communication interface
硬件配置 通信接口 EtherCAT / CAN FD / RS-485 EtherCAT / CAN FD / RS-485 EtherCAT / CAN FD / RS-485 EtherCAT / CAN FD / RS-485
21 DOF (fully direct-driven and backdrivable)
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Degrees of freedom
自由度 总自由度 21(全直驱、可反驱) 21(全直驱、可反驱) 21(全直驱、可反驱) 21(全直驱、可反驱)
Four fingers: 4 × 4 DOF; thumb: 5 DOF
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Degrees of freedom distribution
自由度分布 四指 4 × 4 DoF,拇指 5 DoF 四指 4 × 4 DoF,拇指 5 DoF 四指 4 × 4 DoF,拇指 5 DoF 四指 4 × 4 DoF,拇指 5 DoF
216 × 108 × 50 mm
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Dimensions
尺寸参数 整手尺寸 216 × 108 × 50 mm 216 × 108 × 50 mm 216 × 108 × 50 mm 216 × 108 × 50 mm
≥ 25 N
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Fingertip pinch force
指尖最大捏力 ≥ 25 N ≥ 25 N ≥ 25 N ≥ 25 N
5 kg
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Four-finger payload (group scope)
四指负载 5 kg 5 kg 5 kg 5 kg
≥ 100 N
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Grasp force
最大主动握力 ≥ 100 N ≥ 100 N ≥ 100 N ≥ 100 N
10 A(24 V)
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Maximum current
最大电流 10 A(24 V) 10 A(24 V) 10 A(24 V) 10 A(24 V)
150 mm
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Maximum grip diameter
最大抓握直径 150 mm 150 mm 150 mm 150 mm
10 mm
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Minimum grip diameter
最小抓握直径 10 mm 10 mm 10 mm 10 mm
Full score on the Kapandji opposition test; supports 33 grasping postures (Feix / GRASP / Taxonomy)
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Motion capability
运动范围 运动能力 Kapandji 对指测试满分 覆盖 33 种抓握手势(Feix、GRASP、Taxonomy) Kapandji 对指测试满分 覆盖 33 种抓握手势(Feix、GRASP、Taxonomy) Kapandji 对指测试满分 覆盖 33 种抓握手势(Feix、GRASP、Taxonomy) Kapandji 对指测试满分 覆盖 33 种抓握手势(Feix、GRASP、Taxonomy)
16~85 V
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Operating voltage
工作参数 供电电压 16~85 V 16~85 V 16~85 V 16~85 V
20 kg
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Payload
整手负载 20 kg 20 kg 20 kg 20 kg
0.1°
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Repeatability
重复运动精度 0.1° 0.1° 0.1° 0.1°
IMU (mainboard), temperature sensor (mainboard)
Manufacturer specification
Configuration: Revo 3 U21 / Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Sensors
传感器 IMU(主板)、温度(主板) IMU(主板)、温度(主板) IMU(主板)、温度(主板) IMU(主板)、温度(主板)
Fingertip tactile sensing
Manufacturer specification
Configuration: Revo 3 U21F; Parameter label: Tactile coverage
触觉 触觉分布 / 指尖触觉 全掌触觉 全掌触觉
Full-palm tactile sensing
Manufacturer specification
Configuration: Revo 3 U21T / Revo 3 U21VT; Parameter label: Tactile coverage
触觉 触觉分布 / 指尖触觉 全掌触觉 全掌触觉
0~20 N
Manufacturer specification
Configuration: Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Tactile force range
量程 / 0~20 N 0~20 N 0~20 N
5 modules (3D force)
Manufacturer specification
Configuration: Revo 3 U21F; Parameter label: Tactile point count
点阵数量 / 5 modules(三维力) 451 points(压阻) 336 points(压阻)+ 2000 markers(视触觉)
451 piezoresistive points
Manufacturer specification
Configuration: Revo 3 U21T; Parameter label: Tactile point count
点阵数量 / 5 modules(三维力) 451 points(压阻) 336 points(压阻)+ 2000 markers(视触觉)
336 piezoresistive points + 2000 visuotactile markers
Manufacturer specification
Configuration: Revo 3 U21VT; Parameter label: Tactile point count
点阵数量 / 5 modules(三维力) 451 points(压阻) 336 points(压阻)+ 2000 markers(视触觉)
0.01 N
Manufacturer specification
Configuration: Revo 3 U21F / Revo 3 U21T / Revo 3 U21VT; Parameter label: Tactile resolution
分辨率 / 0.01 N 0.01 N 0.01 N
Fingertip 3D force sensing
Manufacturer specification
Configuration: Revo 3 U21F; Parameter label: Tactile sensing
触觉类型 / 指尖三维力 全掌压阻阵列触觉 手掌压阻阵列触觉 + 指尖视触觉
Full-palm piezoresistive tactile array
Manufacturer specification
Configuration: Revo 3 U21T; Parameter label: Tactile sensing
触觉类型 / 指尖三维力 全掌压阻阵列触觉 手掌压阻阵列触觉 + 指尖视触觉
Palm piezoresistive tactile array + fingertip visuotactile sensors
Manufacturer specification
Configuration: Revo 3 U21VT; Parameter label: Tactile sensing
触觉类型 / 指尖三维力 全掌压阻阵列触觉 手掌压阻阵列触觉 + 指尖视触觉
Nanshan, Shenzhen · At the heart of Robot Valley
An open-source robotics platform connecting global makers and founders with China’s robot companies and component manufacturers. Launching soon.
YOUR APPLICATION DRAFT
Nothing has been sent. Send your application when you’re ready.
Track the newest progress in the world
Experience it in Shenzhen Robot Valley
01 / MEET GLOBAL ROBOT COMPANIES.
02 / DISCOVER THE MOST ADVANCED ROBOTS.
FIND YOUR NEXT ROBOTICS PARTNER
Discover and compare humanoid robots from around the world.
Step inside a working showcase of robotics, from humanoids and helpful machines to the parts that bring them to life.
Book the visit experience
Inside the showroom
Explore complete machines, real-world applications, and the components behind them. Get a closer look at the variety on display.
Showing all 8 exhibit highlights.

Interaction
A first handshake. A playful boxing pose. See how robots move alongside us.

Service robots
Discover a service robot in a shop-counter setting, with objects it can handle.

Robot dogs
Take a closer look at robot dogs and the mechanics that keep them moving.

Dexterous hands
Explore the dexterous hands that turn movement into precise manipulation.

Humanoids
Get close to the joints, sensors, and structure of a full-size humanoid.

Wearable robotics
Discover wearable assistance alongside robots built for very different environments.

Real-world applications
Explore practical applications, including automated cooking and everyday services.

Core components
Look beyond the body to the components and engineering that make it possible.
A glimpse of what’s inside. Exhibits and live demonstrations may vary by visit.

More than a display
The best questions come when you’re standing right beside a robot. A guided visit brings the hardware, the demonstrations, and the conversation together.
Follow the showroom route and discover how different robots are used.
Get hands-on with selected robots through guided interaction.
Ask about the technology, share your interests, and explore what comes next.
Beyond the showroom
The sky deck opens onto Shenzhen’s skyline and surrounding mountains. Take in the place where robotics companies, researchers, and makers are building what comes next.


Curiosity brings us together
For the simply curious, the people building, and the teams exploring their next idea. Robot Valley is a place to see the technology and talk about where it could go.

Plan your visit
Choose your preferred date and group size on the booking page. The team will confirm the arrangements with you.
A guided showroom experience with hands-on robot operation and interactive demonstrations. You’ll have time to ask questions and explore the exhibits. Specific robots and activities depend on the day’s arrangements.
Yes. Visits are by appointment. Use the booking page to choose your preferred date and share your group details. The team will confirm availability, fees, and arrangements before your visit.
Tell us your group size and interests when booking. Company teams, students, researchers, and other groups can discuss their priorities with the team before the visit.
Share the robots, applications, or components you’re interested in with your booking request. The team can discuss what’s available and suitable for your visit.
Something else on your mind? info@robotuo.com
Your next encounter with robotics
Real robots. Real conversations.
See you in Shenzhen.

About Robotuo
Get closer to the people, technology, and opportunities shaping robotics in China.
Local knowledge / Firsthand insight / Global reach
About us
We connect global teams with China’s robotics supply chain and the SZ RoboX open-source community to find partners, share expertise, and bring robotics to new markets.
For companies, developers, and entrepreneurs building what comes next in robotics.

Access robotics, AI hardware, and component suppliers in China. Find partners that fit your business.

Understand Chinese businesses, explore technical capabilities, and find opportunities for collaboration.

With over 1,000 business visitors and buyers served across more than 20 countries and regions, we draw on international experience to connect teams with robotics industry resources.
OUR MISSION
We combine supply chain integration and open-source deployment standards to support robotics applications worldwide.
For Companies
We combine supply chain integration with the development of open-source deployment standards, connecting technology and hardware resources to support robotics applications worldwide.

For Developers & Entrepreneurs
Join the SZ RoboX open-source robotics community to exchange technical knowledge with developers and entrepreneurs, follow global industry developments, and explore opportunities to innovate and collaborate.

YOUR PRIVACY
How this website uses information, and the choices you can make.
Last updated: .
Robotuo is responsible for the personal information processed through this website.
This policy covers browsing Robotuo, local preferences, and our planned use of Google Analytics through Firebase and OneSignal web push notifications. These optional services only run when enabled on the site and you have agreed to the relevant category.
You can browse without an account or agreeing to optional services. Our hosting provider receives your IP address, requested URL, browser information, and request time to deliver and protect the site. Our basis for this processing is our legitimate interest in operating a secure, reliable website.
We store your privacy choices in this browser so we can respect them. This essential preference includes the policy version, your choices, and when you made them; it is not sent to an analytics service. Hosting and security logs are separate from these browser settings.
With your consent, “Remember my selections” stores comparisons and followed companies and products in this browser. These are not synced to an account or shared with Google or OneSignal by our integration. Without consent, these features still work for the current page session.
Turning this option off deletes saved selections from local storage. Current selections remain in memory until you reload or close the page.
With analytics consent, we use the Google Analytics web stream linked to our Firebase project to understand which parts of Robotuo are used and improve the website. Google processes online identifiers, cookie identifiers, browser and device information, general page categories, and usage events. IP addresses are used by Google during collection, including to derive approximate location.
Our integration uses general page categories rather than search terms, full query strings, or individual company and product identifiers. We do not send application form contents, names, or email addresses to Analytics. Advertising consent remains off; Google signals and advertising personalization are disabled in our integration.
The Google tag is not loaded before analytics consent. Declining analytics does not enable cookieless analytics pings. Learn more in Google’s Privacy Policy and Firebase’s privacy information.
With notification consent, OneSignal helps us deliver Robotuo news and updates. It processes subscription and device identifiers, push tokens, browser and operating system information, IP address, language, and notification delivery and interaction information. This service may use browser storage and a service worker to deliver notifications even when the website is closed.
Saving consent does not grant browser permission. Open Privacy settings, save your notification choice, then select “Enable notifications” and allow notifications in your browser if prompted. You can withdraw consent here or block notifications in your browser’s site settings.
Withdrawal disables further SDK data collection and attempts to unsubscribe this browser from push messages. It does not automatically erase information already held by OneSignal. See OneSignal’s Privacy Policy.
Our essential robotuo-privacy record is kept in local storage and is valid for 180 days. We ask again when it expires or the consent version changes. Saved selections use robotuo-compare, robotuo-catalog-follows, robotuo-product-follows, and robotuo-follow-labels; they stay until you withdraw that choice, your consent expires, or you clear site data.
When analytics is enabled with consent, Google uses cookies such as _ga and _ga_*. Our integration limits these cookies to 180 days without automatic renewal. Withdrawing analytics consent disables collection and removes accessible Analytics cookies for this site. Cookie expiry is separate from the retention of data already received by Google.
OneSignal stores subscription information in browser storage and its service worker. Vendor-held records and hosting logs follow the retention settings and obligations applicable to those services; withdrawing consent does not itself delete previously collected records. You can request erasure where applicable.
Use “Reject all,” “Accept all,” or individual choices in Privacy settings. Optional categories are off by default. Closing settings or continuing to browse does not give consent. The Privacy settings button is available in the footer throughout the site. Withdrawing consent is as easy as giving it and does not affect the lawfulness of processing before withdrawal.
Where the GDPR or UK GDPR applies, you may request access, correction, erasure, restriction, or portability of your personal information and object to processing based on legitimate interests. You may complain to your local data protection authority. We normally respond to rights requests within one month, subject to applicable extensions and identity verification.
Privacy contact details will be published before optional services are activated.
Clearing browser data resets these choices. To stop push notifications, also disable notification permission in your browser; clearing site data alone may not withdraw permission. Choices apply to this browser, not every device you use.
Our hosting provider, Google, OneSignal, and the browser’s push delivery provider may process technical information needed for their respective services. Processing may take place outside your country, including in the United States. Where required, transfers need appropriate safeguards, such as applicable adequacy decisions or standard contractual clauses. You may request information about safeguards that apply to your data.
Saved selections, analytics, and notification processing rely on your consent. We do not sell the information collected through these features or use it for advertising in this integration.
Search terms filter content in your browser and may appear in the page URL. Avoid entering sensitive information into search. Application and issue-report drafts stay in this page until you choose Send. Sending shares the information you entered and the relevant page with Robotuo through our hosting provider and Feishu, where our team reviews it and follows up. Do not include sensitive personal information. These submissions work independently of optional analytics and notification preferences.
To limit repeated requests, our server processes your IP address and stores a keyed hash with short-lived counters. When deployed with our shared Upstash Redis store, it stores these hashes, submission identifiers and delivery state for up to 24 hours; form contents are not stored there. Application and report records remain in Feishu for team review and follow-up. Contact Robotuo about access or deletion using the contact information in this policy.
Reloading or closing the page clears unsent drafts. Visit previews do not send a booking. Company websites and the Robot Valley booking page are separate websites with their own privacy practices. Review their policies before submitting personal details.