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Unitree Dex3-1
Number of Fingers
3.0
Degrees of Freedom
7.0
Max Payload Capacity
0.5 kg
Weight
710.0 g

Overview

Unitree Dex3-1 is an anthropomorphic, multi-finger robotic dexterous hand end-effector intended for manipulation research and humanoid/robot-arm integration. It provides multiple actuated joints to enable human-like grasping and in-hand manipulation tasks.

Specifications

General

Number of Fingers
3.0
Degrees of Freedom
7.0
Max Payload Capacity
0.5 kg
Actuation
electric
Tactile Sensing
Yes
Product Category
Multi-Finger/Anthropomorphic Hand
Series / Model
Unitree Dex3-1
Repeat Positioning Accuracy / Repeatability
2.0 mm
Peak Current
10.0 A
Weight
710.0 g
Drive Concept / Architecture
6 micro brushless force-control joints direct-drive + 1 micro brushless force-control joint gear-drive
Force/pressure sensors count
33.0
Communication interfaces / protocol support (as documented/sold across variants)
USB comms payload: TX 1234 bytes, RX 1270 bytes. Telemetry includes joint mode/position/velocity/torque/temperature, voltage & current, sensor pressure values, sensor temperature values, IMU data. Commands include joint mode/position/velocity/torque, joint stiffness coefficient, joint damping coefficient.
Model variants (right/left; bus-associated in integrator listings)
Some resellers list Dex3-1D (with RGB camera, 160° FOV) and 650 g; Unitree lists Dex3-1 as 710 g.
Environmental robustness features (as stated)
Operating temperature range: -20 °C to +60 °C
Control Loop Frequency
1000.0 Hz
Operating Voltage Range
12.0-58.0 VDC
Communication Interface Support (raw)
USB 2.0
Finger degrees of freedom
7.0 dof
Actuator models (servos)
Embedded miniature brushless force-control joint modules: F-1515-108, F-1515-214. Module weight 45 g; size 34.8 × 23.1 × 23.3 mm; reduction ratio 1:108 / 1:214; max torque (ideal) 0.76 N·m / 1.498 N·m; max torque (actual, same direction as speed) 0.49 N·m / 0.86 N·m; max torque (actual, opposite direction of speed) 1.37 N·m / 3.1 N·m; max rotational speed 23 rad/s / 11 rad/s; max line current 4.76 A; comm/control frequency 1000 Hz; comm method High Speed Unibus; encoder rotor absolute value encoder; operating temperature -20 °C to +60 °C.
Standby Current
0.2 A
Dimensions (L×W×H)
175 × 88 × 77 mm
Maximum instantaneous power
400.0 W
Tactile sensing type
Pressure sensor arrays (9 sensing units; total 33 pressure sensors)
Tactile sensing coverage
Palm (2×2)×3, finger pad (2×2)×3, fingertip (3×1)×3
Tactile perception range
0.0980665-24.516625 N
Max acceptable force (no damage)
196.133 N