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Unitree Robotics logoUnitree Robotics

A2

A2-PRO

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Type
Quadruped Robots
Status
Commercial
Release Date
Unknown
Warranty
Unknown
Location
China · Hangzhou
Last Verified
2026-07-29
570 mm standing height
Height
About 42 kg with battery
Weight
About 25 kg continuous walking load
Payload

Unitree A2 is an industrial quadruped robot for logistics, industrial inspection, and emergency rescue. It weighs about 42 kg with battery, supports dual hot-swappable batteries, and carries about 25 kg continuously while walking.

1 / 1A2-PRO

Specifications

Basic Information

Country
China
Made In
China
Manufacturer
Unitree Robotics
Positioning / Application
Logistics, industrial inspection, emergency rescue
Robot Name
A2-PRO
Robot Type
Industrial quadruped robot
Website
https://www.unitree.com/A2/

Body Specifications

Height
570 mm standing height
Lying Dimensions
720 mm x 550 mm x 220 mm
Material
Aluminum alloy + high-strength engineering plastic
Standing Dimensions
820 mm x 440 mm x 570 mm
Weight
About 42 kg with battery

Performance

Payload
About 25 kg continuous walking load
Peak Joint Torque
About 180 N·m
Continuous Walking Payload
About 25 kg continuous walking load
Walking Speed
0–3.7 m/s

Degrees of Freedom

Total DOF
12 joint motors

Mechanical Structure

Actuator Model
Low-inertia, high-speed inner-rotor PMSM
Cooling System
Local air cooling
Joint Bearing
Industrial-grade crossed roller bearings
Joint Encoder
Dual encoders
Joint Range of Motion
Body -58° to 58°; thigh -134° to 180° / -89° to 225°; shank -158° to -30°

Sensors

Camera
1 HD camera
LiDAR
2 industrial LiDARs
Sensors
LiDAR x2 + HD camera x1

Battery and Runtime

Battery Capacity
Dual batteries 907.2 Wh
Battery Swap
Supported
Battery Type
Dual batteries
Battery Voltage
50.4 V
Hot-swappable
Hot-swappable dual batteries
Power Supply
Dual slots, dual batteries
Runtime
3–5 h depending on load
Runtime (Loaded)
3 h continuous walking with full load; 12.5 km
Runtime (No-load)
5 h continuous walking; 20 km

Compute Platform

CPU Cores
8-core high-performance CPU
Onboard Compute
8-core CPU plus Intel Core i7; optional expansion dock

Interaction and Communication

Communication
Wi-Fi 6; Bluetooth 5.2; 4G expanded
External Port
RS485 x2; CAN x2; Gigabit Ethernet x2; USB 3.0 Type-C x4; 12 V / 24 V / BAT power output
GPS
Expanded
Lighting
Front light
Microphone
Microphone array
Speaker
Yes
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