Keyence FU-35FG Fiber Unit Robust M3 Coaxial Fiber Optic Sensor

Name: Keyence FU-35FG Fiber Unit: Robust M3 Coaxial Fiber Optic Sensor
Brand: KWOCO
Price: 1 USD
Availability: InStock

M3 threaded head, Coaxial reflective type, 30 cm stainless steel spiral sleeve, 1m free-cut cable, R10 mm minimum bend radius, -40 to +50°C temperature resistance, supports F-2HA/F-4HA/F-5HA lenses.

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Key Features and Technical Specifications

This Keyence fiber unit is a proximity type. It uses a coaxial design. This means it is very precise. It is a reflective fiber unit that works hard. You do not have to worry about tight bends. It handles them well. The FU-35FG connects easily to your amplifier. It gives you stable detection every time.

Feature	Specification
Model	FU-35FG
Type	Reflective (Coaxial)
Head Size	M3 Threaded
Sleeve Material	Stainless Steel Spiral (30 cm length)
Fiber Unit Length	1 m (Free-cut)
Fiber Diameter	ø1.3 (ø0.05 x 2 cores)
Minimum Bend Radius	R10 mm (R0.39")
Ambient Temperature	-40 to +50 °C (-40 to +122 °F)
Compatible Lenses	F-2HA, F-4HA, F-6HA, F-3HA
Weight	Approx. 15 g

Precision Sensing with the Keyence FU-35FG

It is a very small sensor. The head is only M3 size. It fits in tight spaces. You can put it right next to the target. This helps with the detection of tiny items. It is coaxial. This means the sending and receiving fibers are combined. It creates a focused point. It works well with a Keyence amplifier. You get clear signals. You miss fewer defects.

Why Choose a Reflective Fiber Optic Sensor?

A reflective sensor is easy to use. You do not need two separate units. You only need one head. The light goes out. It hits the object. It bounces back. The fiber optic sensor sees this light. It tells your machine what to do.

This makes setup fast. You save time on wiring. The FU-35FG is great for this. It detects objects from one side. It is perfect for assembly lines. It is great for checking if a part is present. The fiber optic cable is flexible. You can route it anywhere.

Durability of the Fiber Construction

Cables often break. They get crushed. They get cut. The FU-35FG is different. It has a special shield. The tip has a stainless steel spiral. This sleeve is 30 cm long. It protects the most fragile part of the fiber.

This resistance to crushing is huge. It stops downtime. You do not have to replace the fiber unit often. It lasts longer in rough areas. The R10 bend radius allows for movement. It stays strong even when bent.

Comparing Thrubeam and Reflective Models

You might know thrubeam sensors. They use two heads. One sends light. One receives light. They are good. But they take up space. You have to align them perfectly. This takes time.

The Keyence FU-35FG is reflective. It saves space. You bolt it in one place. You are done. It is simpler than a thrubeam setup. Yet, it is still very accurate. It detects the object quickly. For many jobs, it is the better choice.