Tamagawa Seiki Co., Ltd. A56951 Optical Shaft Encoder

The Tamagawa Seiki A56951 Optical Shaft Encoder delivers precise shaft position and rotational speed feedback for servo motor systems in industrial automation. In practice, maintenance teams, OEMs, and system integrators rely on this shaft-mounted optical encoder for equipment replacement, encoder retrofits, machine repairs, and automation system maintenance across CNC machine tools, robotics, semiconductor manufacturing equipment, packaging machines, and precision assembly lines. This sensor uses optical sensing to provide an encoder pulse output (model dependent) and is designed for reliable closed-loop motion control in industrial automation environments. The device is a shaft-mounted encoder assembly compatible with servo motor and motion control systems, carrying the Tamagawa Seiki Co., Ltd. name and model A56951. Common replacements include Tamagawa TS5710N40 Absolute Optical Encoder, TS5668N20 Absolute Optical Encoder, and Heidenhain ERN Series Optical Rotary Encoders.