The Keyence FU-35FG Reflective Fiber Unit is a high-precision sensor accessory designed for applications where ultra-fine detection and compact installation are essential. With its coaxial detection arrangement and advanced fiber design, the FU-35FG is built to deliver stable and accurate sensing in environments where conventional sensors cannot achieve the necessary precision.

One of its most notable strengths is its extraordinary detection capability. The FU-35FG can reliably detect objects as small as a 0.005 mm diameter gold wire, making it particularly valuable in industries such as semiconductor manufacturing, electronics assembly, and precision component inspection. This level of sensitivity ensures accurate recognition of micro-scale targets, which is critical for quality assurance in high-tech production lines.

The unit’s compact M3-sized structure allows it to be installed in tight spaces where larger sensors would be impractical. This makes it an excellent choice for integration into miniature assemblies, fine positioning systems, and delicate inspection setups. Its straight coaxial arrangement ensures accurate alignment of light paths, reducing signal inconsistencies and enhancing detection stability, even with reflective or small objects.

Durability and adaptability are key elements of the FU-35FG’s design. With a 1 m fiber unit length that can be cut to size, it provides installation flexibility while maintaining optimal performance. The stainless structure with a minimum bend radius of R10 mm ensures that the fiber can be routed efficiently through constrained or curved spaces without risking damage. This durability helps maintain long-term reliability, even in challenging mechanical environments.

The FU-35FG is also engineered to perform under extreme environmental conditions. With an operating temperature range from -40 °C to +50 °C, it is suitable for both low-temperature environments, such as refrigerated facilities, and standard industrial settings. This resilience ensures uninterrupted performance and broadens the scope of possible applications.

Weighing just 15 grams, the fiber unit adds minimal load to system designs, making it easy to incorporate without altering mechanical balance or requiring structural reinforcement. Its lightweight nature, combined with its robust stainless construction, offers the perfect balance of strength and ease of integration.

In summary, the Keyence FU-35FG Reflective Fiber Unit stands out as a compact, ultra-sensitive, and highly durable sensing solution. With its ability to detect micro-scale targets, withstand demanding environments, and integrate seamlessly into precision systems, it is an invaluable tool for industries that demand the highest levels of accuracy and reliability in optical sensing.