Free Shipping Across the USA — Worldwide Delivery Available!
PALM Parts Solution
AccountQuote
In Stock Fast Shipping Available
Keyence FU-66Z compact M4 threaded fiber optic sensor head for tight industrial applications

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

Keyence FU-66Z

by Keyence

Read verified buyer reviews ↓

OverviewThe Keyence FU-66Z is an advanced compact threaded fiber optic sensor head, meticulously designed for accurate and dependable detection within the most restricted and demanding industrial environments. Its sturdy M4 threaded body ensures a secure, stable, and straightforward installation, making it perfect for integration into miniature equipment, complex machinery, and automated systems where space is at a premium. When paired with compatible Keyence fiber amplifiers, such as the leading FS-N or FS-V series, the FU-66Z delivers consistent, high-speed sensing performance vital for critical operations. This sensor establishes a new benchmark for optical detection, combining a compact footprint with unwavering precision and resilience, guaranteeing optimal functionality in tough conditions.Key Features Threaded M4 Design: Enables remarkably secure and exceptionally simple installation, ensuring stable positioning without the need for complex mounting apparatus. Compact Form Factor: Specifically engineered to excel in space-constrained setups, providing advanced sensing capabilities where larger sensors cannot fit. High Detection Accuracy: Delivers superior exactness in sensing, crucial for applications requiring very small object detection or fine positional feedback. Broad Compatibility: Integrates effortlessly with a wide array of Keyence Fiber Amplifiers, including the FS-N and FS-V series, unlocking diverse application possibilities. Durable Industrial Construction: Built to endure the rigors of industrial settings, offering long-term dependability and minimizing upkeep requirements. Fast Response Time: Engineered for rapid signal processing, enabling detection of quickly moving targets essential for high-speed production lines. Easy Alignment: The design facilitates quick and accurate alignment, reducing setup time and maximizing operational efficiency. Technical Specifications Model: Keyence FU-66Z Sensor Type: Fiber Optic Sensor Head Thread Size: M4 Detection Method: (Requires compatible amplifier for through-beam or reflective modes) Operating Temperature: (Consult Keyence amplifier specifications) Cable Length: (Specific to fiber unit, typically standard Keyence lengths) Material: (Industrial-grade materials for durability) Applications Micro-Part Detection: Essential for verifying the presence or absence of tiny components in electronics manufacturing, pharmaceuticals, and precision assembly. Edge and Position Sensing: Provides accurate feedback for robotic guidance, material handling, and precise alignment tasks in automated machinery. Component Presence Verification: Crucial for quality control and preventing errors on assembly lines, ensuring all parts are correctly placed. Assembly Line and Robotic Automation: Enhances the efficiency and reliability of automated systems by providing rapid and accurate sensing. Small Object Counting: Ideal for counting very small items on a conveyor or within a feeding system. Gap Detection: Accurately measures small gaps or distances in intricate mechanisms. Why Choose?The Keyence FU-66Z is the top selection for engineers and manufacturers who demand uncompromising sensing performance in challenging environments. Its innovative M4 threaded design not only guarantees stable and easy mounting but also simplifies integration into existing systems, significantly reducing installation time and effort. While many sensors struggle in confined spaces, the FU-66Z's compact form factor is specifically engineered to thrive, ensuring that precision detection is never compromised regardless of spatial constraints. Furthermore, its seamless compatibility with Keyence's renowned range of fiber amplifiers means you can leverage existing infrastructure or build new, highly efficient sensing solutions with confidence, knowing you're investing in a system known for its reliability and advanced capabilities.Order NowReady to enhance your industrial automation? Contact us today to order the Keyence FU-66Z and experience superior detection in compact spaces.FAQWhat types of environments is the Keyence FU-66Z best suited for?The FU-66Z is ideal for confined and challenging industrial environments where space is limited, such as intricate machinery and automated systems requiring precise detection.Which Keyence amplifiers are compatible with the FU-66Z?The FU-66Z seamlessly integrates with a wide range of Keyence Fiber Amplifiers, including the FS-N and FS-V series, providing versatile application possibilities.What are the primary benefits of the M4 threaded design?The M4 threaded design facilitates incredibly secure and exceptionally easy installation, ensuring stable positioning without the need for complex mounting brackets and simplifying integration into existing systems.

🇺🇸 Ships from our Florida warehouse
1-Year PALM Parts Warranty
CONDITION
$150.00
20 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-66Z

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: Keyence FU-66Z
  • Sensor Type: Fiber Optic Sensor Head
  • Thread Size: M4
  • Detection Method: (Requires compatible amplifier for through-beam or reflective modes)
  • Operating Temperature: (Consult Keyence amplifier specifications)
  • Cable Length: (Specific to fiber unit, typically standard Keyence lengths)
  • Material: (Industrial-grade materials for durability)

Applications

  • Micro-Part Detection: Essential for verifying the presence or absence of tiny components in electronics manufacturing, pharmaceuticals, and precision assembly.
  • Edge and Position Sensing: Provides accurate feedback for robotic guidance, material handling, and precise alignment tasks in automated machinery.
  • Component Presence Verification: Crucial for quality control and preventing errors on assembly lines, ensuring all parts are correctly placed.
  • Assembly Line and Robotic Automation: Enhances the efficiency and reliability of automated systems by providing rapid and accurate sensing.
  • Small Object Counting: Ideal for counting very small items on a conveyor or within a feeding system.
  • Gap Detection: Accurately measures small gaps or distances in intricate mechanisms.

Why Choose the FU-66Z?

The Keyence FU-66Z is the top selection for engineers and manufacturers who demand uncompromising sensing performance in challenging environments. Its innovative M4 threaded design not only guarantees stable and easy mounting but also simplifies integration into existing systems, significantly reducing installation time and effort. While many sensors struggle in confined spaces, the FU-66Z's compact form factor is specifically engineered to thrive, ensuring that precision detection is never compromised regardless of spatial constraints. Furthermore, its seamless compatibility with Keyence's renowned range of fiber amplifiers means you can leverage existing infrastructure or build new, highly efficient sensing solutions with confidence, knowing you're investing in a system known for its reliability and advanced capabilities.

Availability & Shipping

  • In stock: FU-66Z 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-66Z ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Keyence

The FU-66Z is ideal for confined and challenging industrial environments where space is limited, such as intricate machinery and automated systems requiring precise detection.

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 →