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Direct Drive Rotary Motor-DDRI-080-050

Continuous torque ；N.m ；0.9 Continuous current ；A rms ；3.2 ；N.m Maximum torque Maximum torque ；2.7 Maximum current ；A rms ；9.6 Torque constant Torque constant ；Nm/A rms ；0.28 Resistance ；Ohm (25°C) ；1.3 Inductance ；mH (25°C) ；1.7 Pole number ；10 Back EMF constant ；Vrms/rad/s ；0.2

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DDRI Series (Internal Rotor Motor)

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DDRI-080-050 Direct Drive Rotary Motor
High Torque · Zero Backlash · Precision Rotation Platform
Ⅰ. Product Overview
The DDRI-080-050 from W-Robot is a medium-sized, high-precision direct drive rotary motor designed for automation systems requiring ultra-smooth rotation, excellent torque performance, and zero mechanical backlash.
Built on advanced coreless torque motor technology with integrated high-resolution encoder feedback, DDRI-080-050 delivers outstanding motion accuracy, fast response, and exceptional repeatability.
Its compact yet rigid structure makes it ideal for high-precision rotary stages, robotic joints, and semiconductor processing applications where accuracy and stability are critical.
Ⅱ. Technical Features
Direct Drive Structure:
Eliminates gears and belts for zero backlash and minimal wear.
High Torque Output:
Delivers strong torque within a compact frame — perfect for precise motion control.
Integrated High-Resolution Encoder:
Supports sub-arcsecond precision with absolute or incremental feedback.
Smooth & Stable Operation:
Outstanding velocity control for vibration-free and quiet performance.
High Stiffness & Dynamic Response:
Enables rapid start/stop and excellent load regulation.
Maintenance-Free Design:
No lubrication or transmission parts needed, reducing downtime.
Flexible Mounting & Shaft Options:
Supports hollow shaft, flange, or direct load connection for various system layouts.
Ⅲ. Application Fields
The DDRI-080-050 is widely used in high-precision and dynamic motion applications such as:
Semiconductor wafer processing & bonding equipment
Precision optical alignment & measurement systems
Robotic wrists and collaborative robot joints
High-speed rotary indexing platforms
Vision inspection and laser scanning devices
Aerospace, automation, and medical instruments
The module’s compact size, zero-backlash performance, and smooth control make it a powerful component in high-end automation and motion platforms.
Ⅳ. Model Selection & Customization
W-Robot offers comprehensive customization for the DDRI Series to adapt to diverse application demands:
Custom torque, speed, and diameter configurations
Encoder resolution and signal type (absolute, incremental)
Hollow shaft or flange mounting options
Cable exit direction and connector style customization
Matching drive & controller system integration
2D/3D CAD files and detailed technical documents available
Ⅴ. Product Advantages
Zero backlash, ultra-precise rotary motion
High torque density with smooth acceleration
Compact, rigid construction for easy system integration
Maintenance-free, long service life
Fast dynamic response and high positioning stability
Ideal for multi-axis coordination with linear motion modules
Ⅵ. Installation & Maintenance
Mount on a stable, vibration-resistant base.
Align the rotating axis accurately with the load to prevent eccentricity.
Protect encoder cables from bending stress and EMI interference.
Keep surfaces clean — avoid dust, oil, or condensation.
Perform torque and speed calibration periodically for best results.
Avoid overload and sudden impact on the motor shaft.
Ⅶ. Learn More
Explore more with W-Robot:
Visit www.w-robot.com for product details & CAD downloads
Read technical insights: “Direct Drive Rotary Motors in Precision Manufacturing”
Contact W-Robot’s technical support team for model selection and system integration advice
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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.

FAQ

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-080-050

DDRI-080-050 Direct Drive Rotary Motor

Ⅰ. Product Overview

Ⅱ. Technical Features

Ⅲ. Application Fields

Ⅳ. Model Selection & Customization

Ⅴ. Product Advantages

Ⅵ. Installation & Maintenance

Ⅶ. Learn More

Related Products