Integrated Joint Servo Motor QDD for Robotic Arms and Humanoids

• ✔ Highly integrated structure for easy assembly and space saving.
• ✔ Support CANopen communication with isolated power supply for reliability.
• ✔ Low power consumption, built-in battery with automatic charging.
• ✔ Multiple operating modes (position, speed) for maximum flexibility.
• ✔ Powerful harmonic reducer, encoder, DC motor and driver in one module.
• ✔ High output torque of 34 Nm for demanding robotic applications.
• ✔ Optimized for fast and efficient construction of robotic joints.

Discover the future of robotic motion with our integrated QDD articulated servo motor. Designed for robotic arms and humanoids, this module represents a revolution in compactness and performance, integrating all key components for precise and reliable motion.

🚀 Key features that will move you forward

• Complete integration: Harmonic reducer, encoder, DC motor and driver in one compact body (OD 80mm).
• Flexible control: Support position mode (Pulse + Direction signal, encoder) and speed mode (PWM signal).
• Robust communication: Isolated CANopen communication with built-in isolated power supply for reliable data transmission.
• Energy efficiency: Low power consumption and multi-step absolute encoder with built-in battery and automatic charging.
• High performance: 34 Nm output torque after deceleration, ideal for dynamic robotic tasks.

🔍 Explore every detail

This joint direct drive (QDD) module is designed to simplify the design of robotic arms and humanoid robots. With its highly integrated structure, it eliminates the need for complex interconnection of individual components and enables fast and efficient joint construction.

With a diameter of just 80 mm, it is a compact solution that does not take up much space, but still delivers impressive performance. The module is optimized for applications where precision, reliability and motion efficiency are key, from laboratory prototypes to advanced industrial robots.

💡 Are you bothered by complex integration and bulky components?

Traditional robotic joint construction often requires a combination of several separate components – motor, reducer, encoder and driver, which leads to complex cabling, larger dimensions and longer assembly time. Each component must be carefully calibrated and interconnected, which increases the risk of errors and reduces the reliability of the entire system.

✅ Simplify your design and gain reliability

The QDD integrated articulated servo motor solves these problems by combining all critical components into one compact unit. This not only dramatically simplifies the design and assembly process, but also minimizes space requirements and increases overall system reliability through an optimized internal architecture. You save time, space and eliminate potential sources of error.

🌟 More than just features, real benefits for your project

• Features: Highly integrated structure with a diameter of 80 mm. -> Benefit: Saves space and simplifies the design of your robot, allowing for more compact and aesthetic designs.
• Feature: Isolated CANopen communication with built-in isolated power supply. -> Benefit: Ensures robust and error-free communication even in demanding industrial environments, minimizes interference and increases reliability.
• Function: Support position and speed mode (Pulse + Direction, PWM). -> Benefit: Provides maximum flexibility for various motion tasks, from precise positioning to smooth speed control.
• Features: Built-in battery and low-power automatic charging. -> Benefit: Ensures long-term and reliable operation, reduces the need for external power and extends the time between recharges.
• Features: 34 Nm output torque and 100:1 reduction ratio. -> Benefit: Allows robots to handle heavier loads and perform precise, forceful operations with high repeatability.

🎯 Who is this module an ideal choice for?

• Robotic arm developers: For those looking for a compact, powerful, and easy-to-integrate solution for building precision robotic arms.
• Humanoid robot designers: Ideal for implementation into humanoid robot joints where weight, space, and smoothness of movement are critical.
• Researchers and academics: A great tool for experiments and developing new robotic applications due to its flexibility and openness.

❓ Do you have concerns? We will answer them

• Concern: The module is too complex to integrate into my existing system. -> Answer: Thanks to its highly integrated structure and support for standard CANopen communication, the module is designed for the simplest possible implementation. The manufacturer has focused on maximum compatibility.
• Concern: The power won't be enough for my demanding robotics tasks. -> Answer: The module offers an impressive 34 Nm output torque and a 100:1 reduction ratio, ensuring sufficient power for a wide range of demanding robotics applications.
• Concern: The lifespan of such an integrated device is short. -> Answer: With a design life of 10,000 hours and a robust construction, this module is designed for long-term, reliable operation with minimal maintenance.

⚙️ Technical specifications

Overall parameters
Rated motor voltage	36V DC ±10%
Rated motor current	3.5A
Output torque after deceleration	34 Nm
Speed ​​range after deceleration	0~30 rpm.
Reducer parameters
Reduction ratio	100
Peak start-stop torque	70 Nm
Permissible maximum value of average load moment	51 Nm
Instantaneous maximum permissible torque	143 Nm
Backspace	Less than 20 arc seconds
Design life	10,000 hours
Engine parameters
Torque	1 Nm
Maximum rotation speed	2000 rpm
Rotational inertia	1.69x10 -4 KG / M 2

❓ Frequently Asked Questions (FAQ)

What is a QDD articulated drive?

The QDD (Quasi-Direct Drive) joint drive is a highly integrated module that combines a harmonic reducer, encoder, DC motor and driver into one compact unit. This enables more direct and efficient power transmission for robotic joints.

What types of robots is this module suitable for?

The module is ideal for robotic arms, humanoid robots and other applications where high precision, compact size and strong torque are required. Its 80mm OD design makes it ideal for projects with limited space.

What control modes does the module support?

The module supports both position mode (using Pulse + Direction signal and encoder) and speed mode (with speed control using PWM signal), which offers great flexibility in programming movements.

How does the module communicate with the control system?

It uses an isolated CANopen bus for communication. The built-in isolated power supply ensures robust and reliable communication even in electrically noisy environments.

What is the expected lifespan of this articulated module?

The module is designed for long-term operation with a design life of 10,000 hours, ensuring reliability and durability in demanding applications.

Is external power required for the encoder or memory?

No, the module includes a built-in battery for the multi-turn absolute encoder that is automatically recharged, eliminating the need for external power for position retention.

What is the maximum output torque?

After deceleration, the module provides an output torque of up to 34 Nm, with an instantaneous maximum torque of 143 Nm, ensuring sufficient power to handle various loads.

How does component integration help in building robots?

The integration of the harmonic reducer, encoder, motor and driver into a single module significantly simplifies the mechanical design, reduces the complexity of the wiring and shortens the time required for assembly and commissioning.

🎥 Videos

📸 Product Gallery