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Name: Direct Drive Rotary Motor-DDRE-224-042
Brand: W-ROBOT

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Direct Drive Rotary Motor-DDRE-224-042

Motor Size ；224(D)*042(H)mm Cont Torque ；14.1N.m Peak Torque ；42.2N.m Cont/Peak CUR ；2.2/6.6A-rms

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DDRE Series (External Rotor Motor)

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DDRE-224-042 Direct Drive Rotary Motor
High Torque · High Precision · Hollow Shaft Design
Ⅰ. Product Overview
The DDRE-224-042 direct drive rotary motor from W-Robot is a high-precision, large-aperture torque motor engineered for demanding automation and motion control applications.
Utilizing a frameless, direct-drive design, it provides smooth rotation, zero backlash, and superior torque density without the need for mechanical transmission components such as gears or belts.
With its 224 mm outer diameter and 42 mm stator height, the DDRE-224-042 delivers both compactness and performance, making it ideal for semiconductor handling systems, precision rotary tables, measurement instruments, and robotics requiring accurate and dynamic rotary motion.
Ⅱ. Technical Features
Direct-drive structure – eliminates mechanical transmission errors, ensuring ultra-smooth and precise motion.
High torque density – compact size with powerful continuous torque output.
Hollow shaft design – enables easy cable, air, or fluid passage for integrated system layouts.
High-resolution feedback – supports optical or magnetic encoders for sub-arcsecond positioning.
Low vibration & noise – provides stable motion for inspection and metrology applications.
Maintenance-free operation – no lubrication, gears, or belts required for long service life.
Flexible installation – adaptable for both vertical and horizontal mounting orientations.
Ⅲ. Application Fields
The DDRE-224-042 is particularly suitable for precision applications such as:
Semiconductor wafer handling and transfer systems
Optical inspection and metrology equipment
High-precision CNC rotary tables
Robotics joint actuation and indexing platforms
Tool changers and automation assembly turntables
Aerospace and laboratory testing instruments
Its direct-drive architecture allows for ultra-fast response and highly repeatable motion accuracy, setting a new benchmark for industrial rotary motion systems.
Ⅳ. Model Selection & Customization
W-Robot provides complete customization options to match diverse integration requirements:
Torque and speed tuning for specific motion profiles
Encoder compatibility (optical, magnetic, or absolute encoders)
Cooling options – natural cooling or forced air/liquid cooling
Hollow shaft dimension customization
Motor flange design adaptation for system fit
Multiple motor sizes and torque levels in the DDRE Series
Comprehensive 2D/3D CAD models, wiring diagrams, and performance data sheets are available upon request.
Ⅴ. Product Advantages
Zero-backlash and high precision due to direct-drive construction
Compact yet powerful torque output suitable for demanding automation
Maintenance-free, reducing total cost of ownership
Smooth and quiet operation, ideal for precision machinery
Modular and flexible integration options
High stability and repeatability over long-term operation
Ⅵ. Installation & Maintenance
Ensure rigid and flat mounting surfaces to minimize vibration and misalignment.
Use compatible high-resolution encoders for optimal feedback performance.
Maintain proper cable routing through the hollow shaft to avoid interference.
Avoid high-humidity or high-temperature environments.
Regularly inspect electrical connections and torque mounting bolts to specified values.
Follow recommended alignment procedures during assembly for accuracy.
Ⅶ. Learn More
Explore more with W-Robot:
Visit the full product line at www.w-robot.com
Technical resources: “How Direct Drive Motors Improve Motion System Accuracy”
Contact W-Robot’s engineering team for application support and integration consultation
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Listed below are answers to our most commonly asked questions. Don't see your question?Contact our customer service team. We would be glad to assist you.

What are the future development trends of linear modules and linear motors?

In the future, linear modules and linear motors will develop towards higher precision, higher speed, smaller size, intelligence, and integration with other advanced technologies (such as artificial intelligence and the Internet of Things).

What parameters need to be provided for customized linear motors?

It is necessary to provide detailed parameters such as load weight, stroke, speed, acceleration, accuracy requirements, installation method, and operating environment so that the manufacturer can design and manufacture a linear motor that meets the requirements.

How long is the customization cycle of linear modules?

The customization cycle depends on the complexity of the customization and the manufacturer's production capacity, generally about 1-4 weeks. The specific time can be determined by communicating with the manufacturer.

Can linear motors be upgraded?

The performance of linear motors can be improved by upgrading them with high-performance drives, optimizing control system parameters, and improving heat dissipation structures.

Is it easy to upgrade the linear module?

It is relatively easy to upgrade the motor, control system, guide rail and other components of the linear module according to actual needs to improve its performance and accuracy.

What is the after-sales maintenance service of linear motors?

Regular manufacturers usually provide comprehensive after-sales maintenance services, including fault diagnosis, maintenance guidance, parts replacement, etc., but the response speed and quality of after-sales maintenance services may vary from manufacturer to manufacturer.

What is the warranty period for linear modules?

The warranty period of linear modules from different manufacturers varies, generally around 1-2 years. The specific warranty period can be confirmed with the manufacturer at the time of purchase.

What should we pay attention to when integrating linear motors with other equipment?

Attention should be paid to issues such as interface compatibility, signal matching, control logic coordination, and installation space and layout between devices to ensure that the devices can work together.

Can the linear module be integrated with other equipment?

Absolutely. Linear modules can be integrated with other devices such as robots, sensors, and vision systems to build more complex and intelligent automated production lines.

What kind of control system do linear motors require?

Linear motors typically require a high-performance motion control system that can achieve precise position control, speed control, and thrust control, such as a dedicated linear motor drive with a motion control card or a high-end PLC.

Products

Direct Drive Rotary Motor-DDRE-224-042

Ⅰ. Product Overview

Ⅱ. Technical Features

Ⅲ. Application Fields

Ⅳ. Model Selection & Customization

Ⅴ. Product Advantages

Ⅵ. Installation & Maintenance

Ⅶ. Learn More

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