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Unitree AS2 Pro

Unitree AS2 Pro from Unitree Robotics
Description

Unitree AS2 Pro

Compact Size Industrial Capability
Dynamic Performance ≈ 2×Go2

 

Powerful Motors, Exceptional Payload

Maximum joint torque: Approx. 90 N·m,
torque-to-weight ratio: Approx. 5 N·m/kg (self-weight: 18 kg).

 

Ultra-long Endurance Expand Boundaries

Powered by a 648Wh (15,000mAh) high-capacity battery. 4+ hours of runtime unloaded;
2.5+ hours carrying 15kg; walking range exceeding 13km.

 

All-Weather Adaptability, Reliable Operation

IP54 rainproof design, stable performance in complex weather and environments.

 

Agile Bionic, Exceptional Dynamics

Bionic Embodied Large Model enables agile motions — running, climbing, jumping, etc. Maximum no-load speed reaches 5 m/s,
with the ability to climb 50cm vertical platforms and 40° slopes.

 

Precise Perception, Intelligent Following

Equipped with an 8-core CPU and a self-developed ISS 3.0 Intelligent Follow System
for centimeter-level positioning and stable company/following

 

Open Platform, Empowering Innovation

Provides developer-friendly interfaces, supporting large AI models
for embodied AI interaction and autonomous decision-making.

 

Unitree As2

Maximum Running Speed

＞5m/s
Maximum Joint Torque

Approx. 90 N·m
Lightweight Design

Approx. 18kg with battery.
Ultra-High Payload Capacity

Standing payload: up to 65kg;

continuous walking payload: approx. 15kg.
Maximum Walking Capability

Forward stair height up to 25cm;

slope angle approx. 40°.
Extended Runtime

Unloaded runtime >4h (>20km);

loaded runtime >2.5h (>13km).

 

 

 

 

Model

As2 AIR

As2 PRO

As2 EDU
Custom Industry Solutions
Mechanical Parameters

Size (Standing)

720mm x 378mm x 457mm

720mm x 378mm x 457mm

 720mm x 378mm x 457mm

Size (Lying Prone)

776mm x 378mm x 233mm

776mm x 378mm x 233mm

 776mm x 378mm x 233mm

Weight (with battery)

Approx. 18kg

Approx. 18kg

Approx. 18kg

Material

Aluminum Alloy + High-Strength Engineering Plastic

 Aluminum Alloy + High-Strength Engineering Plastic Aluminum Alloy + High-Strength Engineering Plastic

Degrees of Freedom (Joint Motors)

12

 12 12

Joint Bearings

Industrial-grade crossed roller bearings (high precision, high load capacity)

 Industrial-grade crossed roller bearings (high precision, high load capacity) Industrial-grade crossed roller bearings (high precision, high load capacity)

Joint Motors

Low-inertia, high-speed inner rotor PMSM

(enhanced response & heat dissipation)

Low-inertia, high-speed inner rotor PMSM

(enhanced response & heat dissipation)

  

Low-inertia, high-speed inner rotor PMSM

(enhanced response & heat dissipation)

Max Joint Torque

Approx. 65 N.m

 Approx. 75 N.m  Approx. 90 N.m

Range of Motion

Body：-45 ~ 45°

Thigh：-115° ~ 200°

Shank：-159° ~ -47°

Body：-45 ~ 45°

Thigh：-115° ~ 200°

Shank：-159° ~ -47°

  

Body：-45 ~ 45°

Thigh：-115° ~ 200°

Shank：-159° ~ -47°
Electrical Characteristics

Supply Voltage

36V ~ 50.4V

36V ~ 50.4V

 36V ~ 50.4V

Joint Encoder

Dual encoders

Dual encoders

 Dual encoders

Cooling System

Local air Cooling

Local air Cooling

 Local air Cooling

Power Supply

Lithium battery

Lithium battery

 Lithium battery

Wi-Fi 6, Bluetooth 5.2

YES

 

YES

 

 YES

Speaker

YES

YES

 YES

Microphone

YES

 YES  YES

Front Light

YES

 YES  YES

ISS 3.0 Intelligent side-follow system

 /

  YES  YES

GPS

 /

  Yes (disabled by default; enabled with user authorization)  Yes (disabled by default; enabled with user authorization)

4G

 /

  Yes (disabled by default; enabled with user authorization)  Yes (disabled by default; enabled with user authorization)

HD Camera

 YES

  YES  YES

Ultra-Wide-Angle LiDAR

 Unitree L2

  Industrial-grade 64~128-line LiDAR  Industrial-grade 64~128-line LiDAR

Computing Power

 8-Core high-performance CPU

  8-Core high-performance CPU  8-Core high-performance CPU

External Interfaces

 

Gigabit Ethernet x 1

SBUS x 1

Power Output：BAT

  

Gigabit Ethernet x 1

SBUS x 1

Power Output：BAT

  

Gigabit Ethernet x 1

SBUS x 1

Power Output：BAT
Performance Metrics

Operating Temperature

-20℃～50℃

-20℃～50℃

 -20℃～50℃

Battery Life(Unloaded) [1]

 ~2 hours continuous walking, approx. 10km ~4 hours continuous walking, approx. 20km  ~4 hours continuous walking, approx. 20km

Battery Life(Loaded) [1]

With 10kg loaded, >1.5 hours continuous walking, approx. 7km

 With 13kg loaded, >2.5 hours continuous walking, approx. 13km  With 15kg loaded, >2.5 hours continuous walking, approx. 13km

Max Standing Load

Approx. 45kg

 Approx. 55kg Approx. 65kg

Continuous Walking Load

Approx. 10kg

 Approx. 13kg Approx. 15kg

Slope Walking Capability

Approx. 30°

 Approx. 40° Approx. 40°

Stair Climbing Capability

20cm

 25cm 25cm

Speed

0–3.0 m/s

 0–3.7 m/s 0–3.7 m/s (Up to ~5 m/s)

Protection Rating

/

 IP54 IP54
Accessories

Remote Control

Optional

YES

YES

Battery Capacity

Standard (8000mAh) x1

 Long Range (15000mAh) x1 Long Range (15000mAh) x1

Charger

Standard (50.4V 4A)

Fast Charging (51V 9A)

Fast Charging (51V 9A)

Charging Dock

/

/

YES

High Computing Power Expansion Dock

No

No

NVIDIA Jetson Orin NX (Optional)
Other

Secondary Development [2]

Not Supported

Not Supported

Supported

UniStore Platform

Supported

Supported

Supported

Smart OTA Upgrade

Continuous Upgrades

Continuous Upgrades

Continuous Upgrades

Warranty [3]

6 Months

12 Months

12 Months

 

[1] The above data was obtained under laboratory conditions. Actual performance may vary based on usage conditions, so please refer to your actual experience.

[2] For detailed functions, please refer to the Secondary Development Manual.

[3] For detailed warranty terms, please refer to the Product Warranty Manual.

[4] The above parameters may vary in different application scenarios and different configurations, please contact sales before purchasing.

[5] This quadruped robot has a complex structure and powerful dynamics. Users must keep a safe distance from the robot at all times. Please use with caution.

[6] The product appearance is subject to change. Please refer to the final product.

[7] Some example features shown on this page are under development and testing, and will be made available to users gradually.

[8] This product is a civilian robot. We kindly request that all users refrain from making any dangerous modifications or using the robot in a hazardous manner.

[9] Please visit Unitree Robotics Website for more related terms and policies, and comply with local laws and regulations.