UNITREE · Dexterous robot hands
Unitree Dex2/5
Gala-style tendon-driven hand: precise control and powerful grip.
Gala-style tendon-driven hand; precise control and a strong grip. Five-finger tendon-driven hand with 10 degrees of freedom (2 actuated). Lightweight, compact, and reliable.
Greater durability with a long fatigue life
The entire hand has undergone more than 100.000 fatigue cycles; the manufacturer presents this as supporting stable and reliable operation over the long term.
Impact-resistant construction
More than 100 drop tests have been completed. The manufacturer says the durable design aims to reduce the vulnerability of the precision hand mechanism.
Concealed internal wiring
Routes the cables through the internal structure instead of leaving them visible on the hand's exterior. In the manufacturer's words, the “veins” run beneath the shell.
Compatible with G1/R1 models
Dex2/5 is presented as compatible for use with the Unitree G1 and R1 models.
Lightweight and compact
The manufacturer also highlights the hand's lightweight and compact design.
Technical specifications
Mechanical, electrical, performance, and operating conditions.
| Degrees of freedom | 10-DOF (2 actuated); thumb ×1; index, middle, ring, and little fingers share one DOF |
|---|---|
| Weight | 365 g |
| Dimensions | 151 × 70 × 63 mmHand dimensions when flat. |
| Transmission mechanism | Gear-and-tendon cord drive |
| Joint angles | Thumb joint 0: 0–42°; thumb joint 1: 0–105°; four-finger joint 0: 0–88°; four-finger joint 1: 0–105° |
| Shortest fist-closing time | 0,5 s |
| Minimum gripping diameter | 8 mm |
| Fingertip force | Thumb: 15 N; index, middle, ring, and little fingers combined: 15 N |
| Operating voltage | 24–60 V |
| Quiescent current | 58 V @ 0,1 A |
| Maximum current | 58 V @ 1,5 A |
| Communication interface | RS485 |
| Operating temperature | −20 °C to 60 °C |
| Load condition – palm facing down | Maximum 1,5 kg when gripping a 5 cm round rigid object at room temperature |
| Load condition – palm facing left | Maximum 1,5 kg when gripping a 5 cm round rigid object at room temperature |
| Communication speed | 1000 HzSoftware functions. |
| Perceptual feedback | Joint mode, position, velocity, torque, and temperature; voltage and current |
| Control feedback | Joint mode, position, velocity, torque, stiffness coefficient, and damping coefficient |
Dimensions refer to the hand in its flat configuration. Parameters may vary depending on the application scenario or model configuration; product appearance may vary.
Software functions
Communication speed and perceptual/control feedback.
| Degrees of freedom | 10-DOF (2 actuated); thumb ×1; index, middle, ring, and little fingers share one DOF |
|---|---|
| Weight | 365 g |
| Dimensions | 151 × 70 × 63 mmHand dimensions when flat. |
| Transmission mechanism | Gear-and-tendon cord drive |
| Joint angles | Thumb joint 0: 0–42°; thumb joint 1: 0–105°; four-finger joint 0: 0–88°; four-finger joint 1: 0–105° |
| Shortest fist-closing time | 0,5 s |
| Minimum gripping diameter | 8 mm |
| Fingertip force | Thumb: 15 N; index, middle, ring, and little fingers combined: 15 N |
| Operating voltage | 24–60 V |
| Quiescent current | 58 V @ 0,1 A |
| Maximum current | 58 V @ 1,5 A |
| Communication interface | RS485 |
| Operating temperature | −20 °C to 60 °C |
| Load condition – palm facing down | Maximum 1,5 kg when gripping a 5 cm round rigid object at room temperature |
| Load condition – palm facing left | Maximum 1,5 kg when gripping a 5 cm round rigid object at room temperature |
| Communication speed | 1000 HzSoftware functions. |
| Perceptual feedback | Joint mode, position, velocity, torque, and temperature; voltage and current |
| Control feedback | Joint mode, position, velocity, torque, stiffness coefficient, and damping coefficient |
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