DNP to Enter into Development and Manufacture of Encoder Disks that Support Factory Automation

The company said will employ proprietary methodologies and technologies to develop the disc encoders.


As demand for factory automation increases, DNP said there is an increased need for these types of components.

Tokyo, Dai Nippon Printing Co., Ltd., or DNP, will enter into the development and manufacturing of Encoder Disks, or ED, employed in electronic components that detect the position, movement direction and rotation angle of industrial robots.

An ED is a disk onto which fine scales have been engraved. Mounted inside the encoder, various sensors detect reflected light on, or transmitted through, the disk, and by converting this into electrical signals detect and control whether industrial robots are moving and rotating in the correct manner.

Increased demand in robotic components as industrial automation adoption grows

As factory automation has progressed in recent years, there has been increased demand for encoders capable of detecting the movement and rotation of robot motors, it said.

In response to this situation, DNP has decided to enter the development and manufacturing of ED. It will combine proprietary strengths in precision thin film coating and patterning technology cultivated in connection with the development of a variety of display products.

Product features

  • The provision of ED compatible with various materials and models
    • DNP will provide ED manufactured from various materials, such as glass, resin, and stainless steel substrates, to meet the diverse needs of client companies. DNP’s ED is compatible with two types of encoders - Rotary Encoders and Linear Encoders.
  • High performance and reliability

    • Using DNP's proprietary cutting methodology, we offer Glass ED that are more resistant to breakage, and Metal ED that are free of partial distortion. In addition, by applying a thin layer of transparent protective film and highly reflective material, it is possible to boost ED with approximately 50% more reflective strength1 compared to uncoated products. With these products, we will increase the resistance to shocks when installing ED, while also reducing the power consumption of light sources that irradiate the ED.
  • Mass production possible

    • DNP manufacturing is carried out on large-scale machinery with multiple faces attached making it possible to mass-produce ED to match the needs of client companies. It is also possible to manufacture large-scale disks. DNP's proprietary cutting methodology and automatic product inspection equipment make it possible to provide high-quality disks.

Going forward

DNP said it will provide ED to companies that manufacture servomotors used in industrial robots and machine tools, aiming for total sales of 1.5 billion yen by FY 2025.

It also said it will develop ED for autonomous sensors, a market that is expected to expand in the future.

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