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Direct Drive Rotary Motor-DDRI-224-065

Motor Size ；224(D)*65(H)mm Cont Torque ；19.8N.m Peak Torque ；60N.m Cont/Peak CUR ；2.3/7A-rms

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DDRI Series (Internal Rotor Motor)

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DDRI-224-065 Direct Drive Rotary Motor
Ultra-High Torque · Zero Backlash · Precision Motion Control
Ⅰ. Product Overview
The DDRI-224-065 from W-Robot is a large-torque, direct-drive rotary motor engineered for demanding automation and motion control systems. Utilizing an advanced direct drive structure without mechanical transmission elements (gears, belts, or couplings), it delivers zero backlash, exceptional rotational precision, and high dynamic response.
Built around a 224 mm outer diameter stator and a high-strength magnetic core, the DDRI-224-065 provides superior torque output and rotational stiffness while maintaining smooth, quiet operation. Its large through-hole design allows cables, air tubes, or optical fibers to pass through easily, making it ideal for compact rotary platforms and precision automation equipment.
Whether used in semiconductor machinery, robotic arms, or optical instruments, the DDRI-224-065 ensures stable torque, high positioning accuracy, and long-term maintenance-free operation—a hallmark of W-Robot’s direct drive motion technology.
Ⅱ. Technical Features
High Output Torque: Delivers strong rotational force suitable for heavy-load or high-inertia applications.
Zero Backlash: Direct electromagnetic drive eliminates mechanical errors for pure rotational precision.
Hollow Shaft Design: Enables compact system integration and easy routing of wiring or pneumatic lines.
Low Cogging Torque: Optimized electromagnetic field design ensures stable motion even at ultra-low speeds.
High Accuracy Encoder: Built-in feedback for micron-level positioning and dynamic control.
Smooth and Silent Operation: Ideal for cleanroom or inspection environments requiring low vibration.
Maintenance-Free: No gears or lubrication required—ensuring reduced downtime and long life.
Ⅲ. Application Fields
The DDRI-224-065 excels in applications requiring precise rotary positioning, high torque, and long-term reliability, including:
Semiconductor & LCD production equipment
Precision rotary tables and indexers
Industrial robot joints & collaborative manipulators
Optical inspection and laser processing machines
CNC rotary axes and machine tools
Packaging and labeling systems requiring continuous rotation
With its exceptional control precision and torque stability, DDRI-224-065 enables engineers to design smarter, quieter, and more efficient automation systems.
Ⅳ. Model Selection & Customization
W-Robot offers flexible customization options for DDRI-series motors to meet various design requirements:
Torque and speed adjustment according to load demands
Encoder resolution and communication type (absolute/incremental, analog/digital)
Hollow shaft dimensions and mechanical interfaces customizable
Servo drive integration or pairing with W-Robot motion controllers
Cooling options (natural convection, forced air, or liquid cooling)
2D/3D CAD models and full technical documentation available upon request
Ⅴ. Product Advantages
Direct-drive, gearless structure—eliminating backlash and wear
High torque and stiffness ensure excellent motion repeatability
Large hollow shaft improves space utilization and cable routing
Smooth, low-noise rotation ideal for clean and quiet environments
High dynamic response for fast acceleration and deceleration tasks
Maintenance-free operation and reduced total cost of ownership
Ⅵ. Installation & Maintenance
Mount on a flat, rigid, vibration-free base for best performance.
Use specified torque values for fastening bolts and coupling interfaces.
Verify encoder calibration and communication with the control system.
Avoid magnetic field interference, moisture, or excessive heat.
Perform precision checks every 6–12 months to ensure accuracy retention.
Ⅶ. Learn More
Explore more with W-Robot:
Product catalog and CAD downloads at www.w-robot.com
Technical insights: “Direct Drive Motors: The Future of Precision Rotary Motion”
Contact W-Robot’s technical team for assistance in system selection and design integration.
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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-DDRI-224-065

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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