Nikon announces world’s first multi-turn external battery-free absolute encoder MAR-M700MFA with an all-solid-state battery


Nikon today announce the release of the MAR-M700MFA, the world’s first multi-turn external battery-free absolute encoder to use an all-solid-state battery. An absolute encoder is a type of sensor device used commonly in industrial robots on automobile manufacturing lines, machine tools, and many other applications. Its purpose is to detect absolute values for robot-arm rotational displacement and similar measurements.

Nikon has eliminated the need for external battery usage by embedding within their encoder an all-solid-state battery developed by Maxell. This has enabled Nikon to increase the maximum guaranteed operating temperature to 105°C, which offers greater freedom in motor and equipment design than ever before. Furthermore, this latest model is maintenance-free.

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Nikon MAR-M700MFA comes with new features including a predictive maintenance feature and an angular precision self-correction function, which enable an expanded range of possible usage environments for industrial robots along with improved operational consistency and greater precision in motion control.

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It is designed with compatibility in mind with Nikon’s existing absolute encoders, so it can be installed without changing the design of the mounting part. Nikon will start accepting orders for MAR-M700MFA from June 2024. Nikon plans to showcase their new models at iREX2023 (International Robot Exhibition 2023; November 29 to December 2, 2023, at Tokyo Big Sight).

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