BrainCo Revo 2 Basic Left Dexterous Bionic Hand (XRL)

A humanoid robot with one capable hand is only half a robot. Bimanual work needs a matched pair, and the BrainCo Revo 2 Basic Left Dexterous Bionic Hand (XRL) is the left half of that pair: a five-finger bionic hand for robot integration and research, built to take commands over a standard serial or CAN bus and get on with the job.

Robots USA sells the XRL and supplies it to robotics integrators, university labs and development teams. We quote it, arrange delivery and support it, so you deal with one seller from the first question to the installed hand.

Background

BrainCo and the Revo 2 lineage

BrainCo's Revo 2 is the second-generation hand in the Revo family. Our store also carries the earlier BrainCo Revo 1 Intelligent Dexterous Bionic Hand. The Revo 2 family comes in three versions: Basic (XRL/XRR), Pro (XEL/XER) and Touch (XTL/XTR). The XRL is the left-hand Basic model, and the right-hand Basic counterpart is the XRR.

Where the Basic version sits

The Basic version is the entry configuration of the family. Per the published specification, it takes a 12-28V supply, while the Pro and Touch versions are listed at 12-64V. It communicates over RS-485 or CAN FD. It is meant for teams that want the core Revo 2 mechanics and control features without stepping up to the other versions. You can see the whole family in the BrainCo Revo 2 category.

Technical Specifications

Specifications as published; confirmed against the datasheet at quotation. The manufacturer has not published the width, IP rating, materials, package contents, cable length or service life. Those details are confirmed at quotation.

What makes the XRL different from the Pro and Touch versions?

The published figures separate the versions on power and current. The Basic hand is listed at 12-28V, a static current of 65 mA @24V and a no-load average current of 350mA @24V. The Pro and Touch versions are listed at 12-64V, 115 mA @24V and 390mA @24V. Maximum current is 4.6 A @24V for the Basic and 4.65A @24V for the others. Repetitive control precision is the same 0.1° across all three.

If your platform runs on a modest supply and you want the lower idle draw, the Basic version fits. If you need the wider voltage range, look at the BrainCo Revo 2 Pro Dexterous Left Hand (XEL). For a left hand with the touch-oriented configuration, see the Brainco Revo 2 Touch Biomimetic Dexterous Left Hand (XTL). The fact sheet does not detail what separates those versions beyond the figures above, so confirm the differences at quotation.

How is the XRL controlled and protected?

The control modes are position, velocity and current feedback control, plus cascaded control and compliance control. Protection covers current, stall, high temperature and anti-collision. The SDK supports Python and C and is compatible with Linux, Windows and ROS systems. The hand supports OTA online upgrades. The default device ID is 126 for the left hand and 127 for the right hand, which helps when you run a pair on one bus.

Who is the XRL for?

Humanoid and dual-arm robot builders are the clearest buyers. They need a left hand that matches a right hand and talks over the same bus. Research labs studying manipulation will value the SDK and the feedback control modes. System integrators adding a hand to an existing arm get a compact unit that weighs 383 g. For the right side of a pair, choose the BrainCo Revo 2 Basic Right Dexterous Bionic Hand (XRR). Teams who need the wider 12-64V supply should compare the Pro version first. You can browse other options in the Hands category.

What is the XRL used for?

1. Humanoid robot hands. It gives the left arm of a humanoid a five-finger end effector.
2. Bimanual manipulation. Paired with the XRR, it supports two-handed tasks.
3. Grasping research. Labs study grip, pinch and compliance behavior with the feedback control modes.
4. Teleoperation development. Teams can drive the hand from Python or C code or through ROS.
5. Object handling trials. The hand is rated for a payload of ≥20kg, per the published specification.
6. Education and demonstration. A quiet hand, ≤50dB at 50cm, suits classrooms and exhibition stands.

Pricing and Availability

Robots USA quotes the BrainCo Revo 2 Basic Left Dexterous Bionic Hand (XRL) on request. Send us your quantity, your target platform and your delivery location, and we reply with a quotation. Delivery, customs and support are arranged together with the quotation. Every detail we can publish about this hand is available on this page.

Frequently Asked Questions

How many joints does the XRL have?

It has 11 degrees of freedom, of which 6 are active joints, per the published specification.

Which communication interfaces does the Basic version use?

It communicates over RS-485 or CAN FD. The connector is under the wrist, and its model is BM05B-PASS-TFT(LF)(SN).

What software can I use to control it?

The SDK supports Python and C, and it is compatible with Linux, Windows and ROS systems. OTA online upgrades are supported.

What power supply does it need?

The Basic version is listed at 12-28V. Static current is 65 mA @24V, and maximum current is 4.6 A @24V.

Is the hand dust or water resistant?

The manufacturer has not published an IP rating. It is confirmed at quotation. The listed operating range is -10 - 40℃ / 90%RH.

Does it come in other colors?

Standard colors are Space Gray and Silver. Bulk color customization is supported.

Where can I buy the XRL and what does it cost?

Robots USA sells and supplies it. Pricing is given in a quotation, so request one with your quantity and location.

Summary

One good hand is easy to find. A matched left hand that fits into a bimanual system is harder. The XRL offers 11 degrees of freedom, 383 g, RS-485 or CAN FD, and a Python/C SDK with ROS support, all with the Basic version's lower power draw. To specify it, compare it with the other Revo 2 versions, or request a quotation from Robots USA, this page is the starting point.