Our robotic joint motor—exemplified by this 44.5mm outer-rotor model—is engineered specifically for light-load, high-precision, and compact applications. Its core advantages include:

• Compact Size & High Power Density: Perfectly tailored to meet the stringent integration requirements of modern robotic joints.

• Robust & Efficient Design: Featuring a brushless architecture and 48V power input, it delivers the reliability and energy efficiency needed for industrial-grade standards.

• Precision Engineering: Built with tight manufacturing tolerances to ensure smooth motion and exceptional positioning accuracy.

Ideally suited for light-duty collaborative robots (cobots), service robots, and AGV auxiliary mechanisms, this motor is the optimal choice for achieving miniaturization, modularity, and high reliability in next-generation robotic joint drives.

1. Core Characteristic of the Motor

Structure and Dimensions

With an outer diameter of Φ44.5mm, this compact outer-rotor BLDC motor features a flattened structure that perfectly aligns with the modular integration requirements of robotic joints, occupying minimal space.

The outer-rotor design delivers higher torque density while maintaining moderate rotor inertia, enhancing the joint's dynamic response and precise positioning.

Precision geometric tolerances (0.02–0.03mm) ensure low vibration and noise at high speeds and under load, enhancing joint motion stability.

Electrical & Performance

Rated voltage: 48V. An industrial-grade high-voltage DC solution with high power density, directly compatible with mainstream mobile and collaborative robot battery systems.

Rated power: 80W (MAX). Rated speed: 1000 rpm. Delivers smooth torque output, ideal for light-load joint applications.

The brushless structure eliminates carbon brush wear, offering extended lifespan and maintenance-free operation to meet the reliability demands of long-term continuous robotic operation.

Control and Energy Efficiency

The brushless motor supports precise speed regulation and position control. When paired with a gearbox, it achieves high positioning accuracy and compliant control for joints.

The high-efficiency winding design and external rotor cooling structure reduce energy consumption and temperature rise, enhancing the robot's endurance and continuous operation capability.

2. Application

Application and Practice
Application Filed	Typical Use Cases	Key Advantages & Technical Rationale	Practice
Collaborative Robots (Cobots)	Light-load wrist joints, end-effector drives	• Compact size + 48V supply enables modular joint design • 80W power suits loads ≤5kg • Low noise & vibration meet human-robot collaboration safety standards
Service Robots	Gimbal tilt/yaw joints, small arm joints	• Maintenance-free operation ideal for home/commercial long-term use • 1000rpm speed paired with reducer enables precise posture control
AGV/AMR Auxiliary Mechanisms	Steering joints, auxiliary lift/translation mechanisms	• 48V voltage compatible with AGV battery systems • High efficiency extends runtime
Small Industrial Robots	Pick-and-place arms, inspection mechanism joints	• High-precision tolerances ensure repeatable positioning accuracy • Stable torque meets high-frequency reciprocating motion demands
Bionic / Educational Robots	Bionic joints, teaching demonstration platforms	• Lightweight + small size facilitates multi-DOF design • Moderate cost suitable for research and prototype development

3.Customized Advanced Solutions

For R&D teams and manufacturers requiring bionic-level motion realism, extreme lightweight design, and biological-grade compliant force control—along with embedded development capabilities—we offer a mature end-to-end solution: core BLDC brushless joint motors + proprietary/open-source driver board adaptation + customized controller integration.

As the mainstream solution for top-tier bionic robots today, it supports a hidden, built-in driver board design, exposing only high-quality metal rotary shafts. This ensures high-performance drive and compliant control while perfectly preserving the motor's pristine industrial aesthetics, meeting the high realism design requirements of bionic structures.

For product selection, solution customization, or tailored support, please contact our technical team at any time.