• Integrated actuator with planetary reducer, angled three-quarter view showing mounting face and housing
  • Unitree A1 motor integrated actuator front face with central shaft opening and bolt pattern
  • Side profile of the integrated actuator housing showing thickness and fastener points
  • Angled rear-side view showing the actuator housing edge and connector area
  • Rear view of Unitree A1 motor showing XT30-style power connector and small data ports
  • Package contents list: RS-485 module, XT30 power cable, GH1.25 data cable, XT30 power/signal cable, adapter board
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Unitree

Unitree A1 Motor Integrated Actuator w/ Planetary Reducer, RS-485, 33.5 NM, 21.0 rad/s @24VDC

Unitree A1 Motor Integrated Actuator w/ Planetary Reducer, RS-485, 33.5 NM, 21.0 rad/s @24VDC

$665.00 USD
$665.00 USD
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Overview

Unitree A1 Motor is an integrated motor actuator for robotics joints and other compact, high-load motion systems. It is described as stable and efficient, maintenance convenient, with an ultra-thin design fuselage and an extreme-optimized planetary reducer. The motor weight is stated as 605 g.

Key Features

  • Strong power; highly integrated structure
  • Extreme-optimized planetary reducer
  • Crossed roller bearing (also described as oversized industrial grade), stated as resistant to axial impact with high precision and long life
  • Temperature sensor and position sensor
  • Low copper consumption coil
  • FOC control characteristic plot provided (described as low torque ripple, low noise, smoother operation)
  • Real-time reading of sensor data:
    • Motor sensing feedback: Torque, Angle, Angular Velocity, Angular Acceleration, Temperature
    • Motor control instruction: Torque, Angle, Angular Velocity, Stiffness, Damping

Technical Specifications

Model A1
Weight About 605 g
Maximum Current 40 A
Maximum Rotational Speed 21.0 rad/s (@24VDC)
Reduction Ratio 1:9
Maximum Torque 33.5 NM
Torque Constant 0.8732 Nm/A
Communication Mode RS-485
Communication Control Frequency 1000 Hz
Motor Encoder Resolution 15 bit
Working Voltage 12V~30VDC (24VDC recommend)
Motor Perceptual Feedback Torque, Angle, Angular Velocity, Angular Acceleration, Temperature
Motor Control instruction Torque, Angle, Angular Velocity, Stiffness, Damping

Applications

  • Humanoid robots
  • Robotic arms
  • Exoskeletons
  • Quadruped robots
  • AGV vehicles
  • ARU robots

What’s Included

  • High-Speed Single-Channel RS-485 Communication Module × 1
  • XT30 Power Cable × 1
  • GH1.25 Data Cable × 1
  • XT30 (2+2) Power & Signal Cable × 1
  • XT30 (2+2) Adapter Board × 1

Files

Details

Unitree A1 Motor integrated actuator with ultra-thin housing and optimized planetary reducer (605 g)

Unitree A1 Motor integrates the actuator and reducer into a compact, ultra-thin joint module for high-load robotic motion.

Key feature icons: strong power, integrated structure, crossed roller bearing, sensors, and low copper coilPerformance slide highlighting instant burst of power with peak torque and speed callouts for robotics joints

High burst output supports agile motion in compact robotic joints where fast acceleration and stable control matter.

Cutaway view describing high-quality windings and stator design for improved heat dissipation and durability

High-quality windings and stator construction are designed to reduce resistance while improving thermal performance.

Unitree A1 Motor front and rear views with ports, crossed roller bearing, and RS-485 sensing/control list

A highly integrated layout combines crossed roller bearing support with RS-485 communication for real-time feedback and control commands.

Magnetic circuit optimization heatmap of the motor stator for improved flux use and reduced cogging torqueMotor streamline simulation graphic illustrating airflow/velocity distribution around the rotating assemblyTemperature monitoring sensor visualization with thermal map for protecting the motor under abnormal heat

Built-in temperature monitoring helps protect the actuator during demanding duty cycles and abnormal heat conditions.

FOC control characteristic plot indicating low torque ripple, low noise, and smoother operation curvePacking list for included accessories: RS-485 module, XT30 power cable, GH1.25 data cable, and adapter

Each package includes the RS-485 communication module plus the required XT30 power and GH1.25 data cabling.