Free Shipping Across the USA — Worldwide Delivery Available!
PALM Parts Solution
AccountQuote
In Stock Fast Shipping Available
Keyence FU-20 compact fiber optic sensor head with threaded housing

*Image shown is a representation only. Actual product may vary.

Keyence FU-20

by Keyence

Read verified buyer reviews ↓

OverviewThe Keyence FU-20 represents an advanced solution for compact fiber optic sensing, specifically engineered for applications demanding superior accuracy in restricted spaces. This fiber optic sensor head features a robust, threaded cylindrical design, enabling secure and straightforward installation across various industrial setups. Designed to seamlessly integrate with Keyence's sophisticated fiber optic amplifiers, the FU-20 consistently provides dependable detection. Its inherent versatility and resilient construction make it a vital element for machinery and automation where rapid, precise object detection is critical, particularly in areas that are confined, narrow, or challenging to access. This sensor excels when traditional sensors are hindered by spatial constraints, offering a powerful yet compact option for intricate detection requirements.Key Features Threaded Mounting Design: Ensures a stable, secure, and repeatable installation, reducing setup time and maximizing operational consistency. The threaded barrel allows for precise positioning and robust fixture in diverse industrial setups. High-Precision Detection: Engineered to identify even the smallest components or subtle edges with remarkable accuracy, making it suitable for quality control, detailed inspections, and assembly verification. Seamless Compatibility with Keyence Amplifiers: Guarantees optimal performance and straightforward integration within existing and new Keyence sensing systems, ensuring reliable operation from initial setup. Compact and Flexible Design: Its minimal footprint and highly flexible fiber optic cable facilitate easy integration into tight, complex, or custom sensor arrangements where space is limited. Resistant to Harsh Industrial Conditions: Constructed from high-grade, resilient materials, the FU-20 is built to endure challenging industrial environments, including exposure to vibration, dust, and temperature fluctuations, ensuring long-term reliability and reduced maintenance. Stable Positioning: The threaded design not only ensures secure mounting but also provides consistent and stable positioning, essential for applications requiring highly repeatable detection. Technical Specifications Model: FU-20 Sensor Type: Fiber Optic Sensor Head Mounting Type: Threaded Cylindrical Detection Method: Requires connection to a compatible Keyence fiber optic amplifier for specific detection modes Material: Durable industrial-grade materials (housing and flexible fiber core) Focal Length: Standard detection (no integrated lens) Applications Precision Part Detection: Essential for verifying the presence, absence, or correct orientation of minute components in automated assembly lines, maintaining product quality and preventing defects. Edge and Position Sensing: Provides reliable and highly accurate determination of object edges and precise positioning in confined or complex mechanical systems, crucial for robotic operations and material handling. Electronics Manufacturing: Accurately detects small electronic components, wires, and circuit board features, supporting high-density manufacturing processes and quality control. Automation Systems: Improves the dependability and efficiency of high-speed automation systems through consistent and rapid detection. Why Choose the Keyence FU-20?The Keyence FU-20 stands out as a premier choice for industrial sensing needs due to its exceptional precision, robust construction, and adaptable design. It offers reliable performance in challenging environments and integrates effortlessly with Keyence

🇺🇸 Ships from our Florida warehouse
1-Year PALM Parts Warranty
CONDITION
$129.99
17 in stock

USA — Free FedEx Priority & UPS Ground · Worldwide shipping available

For more quantity please contact Customer Service

Experts Available 24/7 · 365
+1 (689) 263-1985
sales@palmpartssolution.com

Fast Shipping

Dispatched quickly on in-stock items via UPS, FedEx & DHL worldwide.

Availability

Thousands of parts in stock — ready for immediate dispatch from Florida.

Payment Flexibility

AMEX, Visa, MasterCard, PayPal, Discover and wire transfer accepted.

PRODUCT DETAILS

Keyence FU-20

Overview

This is a genuine Keyence component from the Sensors family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Keyence catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Keyence automation ecosystem
  • Engineered to integrate inside Sensors installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Keyence equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Keyence catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Keyence platform with documented conversion notes for the Sensors family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: FU-20
  • Sensor Type: Fiber Optic Sensor Head
  • Mounting Type: Threaded Cylindrical
  • Detection Method: Requires connection to a compatible Keyence fiber optic amplifier for specific detection modes
  • Material: Durable industrial-grade materials (housing and flexible fiber core)
  • Focal Length: Standard detection (no integrated lens)

Applications

  • Precision Part Detection: Essential for verifying the presence, absence, or correct orientation of minute components in automated assembly lines, maintaining product quality and preventing defects.
  • Edge and Position Sensing: Provides reliable and highly accurate determination of object edges and precise positioning in confined or complex mechanical systems, crucial for robotic operations and material handling.
  • Electronics Manufacturing: Accurately detects small electronic components, wires, and circuit board features, supporting high-density manufacturing processes and quality control.
  • Automation Systems: Improves the dependability and efficiency of high-speed automation systems through consistent and rapid detection.

Why Choose the FU-20?

The Keyence FU-20 stands out as a premier choice for industrial sensing needs due to its exceptional precision, robust construction, and adaptable design. It offers reliable performance in challenging environments and integrates effortlessly with Keyence

Availability & Shipping

  • In stock: FU-20 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every FU-20 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Keyence

Yes. Every FU-20 we ship is sourced through trusted industrial channels and inspected before dispatch. PALM Parts Solution operates as an independent supplier, not an authorized distributor.

Machine down? We ship parts the same day.

New, surplus, and refurbished Keyence inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

What Verified Buyers Say

No reviews yet for this product. Be the first verified buyer to share your experience — we email a review invitation after every purchase.

Independent Supplier Notice

PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

Are you an Electrical Distributor?Learn more about our distributor program

PALM Parts Solution sells used surplus products. PALM Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by PALM Parts Solution come with PALM Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

Read full disclaimer →