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Direct Drive Rotary Motor-DDRE-112-65

Motor Size ；112(D)*65(H)mm Cont Torque ；3N.m Peak Torque ；9N.m Cont/Peak CUR ；2.5/7.5A-rms

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DDRE Series (External Rotor Motor)

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DDRE-112-65 Direct Drive Rotary Motor
High Precision · High Torque Density · Maintenance-Free Direct Drive System
Ⅰ. Product Overview
The DDRE-112-65 from W-Robot is a compact, high-torque direct drive rotary motor designed for precision automation, robotics, and semiconductor applications.
Using advanced direct electromagnetic drive technology, the DDRE-112-65 eliminates mechanical gears and transmission losses, providing zero backlash, smooth torque output, and micron-level positioning accuracy.
With a 112 mm outer diameter and 65 mm hollow shaft, this model offers superior integration flexibility for routing pneumatic tubes, cables, and vision sensor connections through the central axis — making it ideal for use in robotic joints, rotary indexing tables, optical inspection systems, and precision assembly platforms.
Ⅱ. Technical Features
Zero Backlash Design: Direct drive eliminates mechanical transmission errors, ensuring highly repeatable motion.
High Torque Density: Compact motor body delivers strong torque output suitable for medium-load applications.
Large Hollow Shaft (Ø65 mm): Enables cable, air, or fluid routing through the motor center, simplifying integration.
Integrated High-Resolution Encoder: Delivers sub-arcsecond accuracy for advanced motion control systems.
Low Vibration & Noise: Optimized stator and rotor structure minimize cogging torque and acoustic emission.
Maintenance-Free: No gear wear or lubrication required, providing long-term stability.
Flexible Cooling Options: Supports natural and forced-air cooling for continuous operation.
Ⅲ. Application Fields
The DDRE-112-65 excels in scenarios where precision, speed, and compactness are critical, including:
Semiconductor wafer handling and inspection equipment
Collaborative and industrial robot joints
High-precision rotary indexing tables
Optical inspection and laser scanning systems
Medical and laboratory automation systems
Aerospace component positioning and testing platforms
Its direct drive mechanism ensures responsive, quiet, and accurate motion control suitable for high-end automation environments.
Ⅳ. Model Selection & Customization
W-Robot provides flexible customization for the DDRE series to fit your application requirements:
Torque and speed tuning according to load dynamics
Encoder resolution options (incremental, absolute, or serial feedback)
Cooling method selection (air or liquid)
Custom hollow shaft sizes and flange designs
Driver compatibility configuration with integrated servo control
Available CAD models and detailed datasheets upon request
Ⅴ. Product Advantages
Zero mechanical backlash and ultra-smooth torque output
High-precision motion control with direct electromagnetic drive
Compact and rigid design for space-constrained applications
Long lifespan with minimal maintenance requirements
Silent and clean operation, suitable for laboratory and cleanroom environments
Easy system integration with multi-axis configurations
Ⅵ. Installation & Maintenance
Ensure the mounting base is flat, rigid, and vibration-free.
Align and secure the motor using torque-appropriate fasteners.
Calibrate the encoder before operation for precise positioning.
Avoid extreme temperatures, moisture, or magnetic interference.
For active cooling models, ensure airflow or coolant circulation is unobstructed.
Perform periodic alignment and accuracy verification every 6–12 months.
Ⅶ. Learn More
Discover more from W-Robot:
Download full specifications and 3D CAD files at www.w-robot.com
Read: “Direct Drive Motors: Redefining Precision in Industrial Automation”
Contact our engineering support team for selection 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.

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-DDRE-112-65

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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