{"product_id":"keyence-fu-59-fiber-optic-sensor","title":"Keyence FU-59 Fiber Optic Sensor 24VDC","description":"\u003cstyle\u003e\n.nxs-industrial-product-page {\n--industrial-navy: #082f49;\n    --industrial-blue: #0b4f7c;\n    --industrial-blue-2: #0f6ea8;\n    --industrial-blue-3: #1784c1;\n    --industrial-cyan: #38bdf8;\n    --steel-blue: #dcebf5;\n    --steel-blue-2: #edf6fb;\n    --steel-line: #c9dce9;\n    --surface: #ffffff;\n    --surface-soft: #f7fbfe;\n    --text-main: #173042;\n    --text-muted: #5e7382;\n    --shadow-soft: 0 10px 30px rgba(8, 47, 73, 0.08);\n    --shadow-hover: 0 16px 36px rgba(8, 79, 124, 0.15);\n    --radius-lg: 14px;\n    --radius-md: 10px;\n}\n\n.nxs-industrial-product-page, .nxs-industrial-product-page * {\nmargin: 0;\n    padding: 0;\n    box-sizing: border-box;\n    font-family: Arial, Helvetica, sans-serif;\n}\n\n.nxs-industrial-product-page {\nbackground-color: #f3f8fb;\n    background-image:\n        linear-gradient(180deg, #eef6fb 0, #f7fafc 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0;\n    width: 5px;\n    height: 100%;\n    background: linear-gradient(180deg, var(--industrial-blue-3), var(--industrial-blue));\n}\n\n.nxs-industrial-product-page .section h2 {\nposition: relative;\n    display: inline-flex;\n    align-items: center;\n    gap: 10px;\n    font-size: 25px;\n    line-height: 1.3;\n    color: var(--industrial-navy);\n    margin-bottom: 24px;\n    letter-spacing: -0.2px;\n}\n\n.nxs-industrial-product-page .section h2::before {\ncontent: \"\";\n    width: 28px;\n    height: 4px;\n    flex: 0 0 28px;\n    border-radius: 999px;\n    background: linear-gradient(90deg, var(--industrial-blue-2), var(--industrial-cyan));\n}\n\n.nxs-industrial-product-page .section p {\ncolor: var(--text-main);\n}\n\n.nxs-industrial-product-page .spec-table {\nwidth: 100%;\n    border-collapse: separate;\n    border-spacing: 0;\n    overflow: hidden;\n    border: 1px solid var(--steel-line);\n    border-radius: var(--radius-md);\n    background: 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anywhere;\n}\n\n.nxs-industrial-product-page .spec-table td:first-child {\nwidth: 42%;\n}\n\n.nxs-industrial-product-page .features {\ngrid-template-columns: 1fr;\n        gap: 12px;\n}\n\n.nxs-industrial-product-page .card {\npadding: 18px 17px;\n}\n\n.nxs-industrial-product-page .card:hover {\ntransform: none;\n}\n\n.nxs-industrial-product-page .section ul {\ngrid-template-columns: 1fr;\n        gap: 9px;\n}\n\n.nxs-industrial-product-page .section li {\npadding: 11px 12px 11px 36px;\n        font-size: 14px;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p {\npadding: 16px 14px 16px 48px;\n        font-size: 14px;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p::before {\nleft: 12px;\n        top: 15px;\n        min-width: 26px;\n        height: 26px;\n        font-size: 10px;\n}\n}\n\n@media (prefers-reduced-motion: reduce) {\n.nxs-industrial-product-page, .nxs-industrial-product-page *, .nxs-industrial-product-page *::before, .nxs-industrial-product-page *::after {\ntransition: none !important;\n}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\u003cdiv class=\"container\"\u003e\u003cmain\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKeyence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eFU-59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eFiber Optic Sensor Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Unit Type\u003c\/td\u003e\n\u003ctd\u003eThrubeam (Transmissive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Axis Diameter\u003c\/td\u003e\n\u003ctd\u003eø0.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Unit Size\u003c\/td\u003e\n\u003ctd\u003eø1.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Unit Length\u003c\/td\u003e\n\u003ctd\u003e1 m, Free-Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Unit Diameter\u003c\/td\u003e\n\u003ctd\u003eø1.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Bend Radius\u003c\/td\u003e\n\u003ctd\u003eR4 mm, High-Flex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Detectable Object\u003c\/td\u003e\n\u003ctd\u003eø0.005 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 3 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\u003ch3\u003eThrubeam Sensing Principle\u003c\/h3\u003e\n\u003cp\u003eThrubeam fiber unit places the emitter and receiver on opposite sides for reliable detection of objects that interrupt the beam.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eø0.7 mm Optical Axis\u003c\/h3\u003e\n\u003cp\u003eNarrow optical axis diameter supports detection of small objects passing between the fiber tips.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eø0.005 mm Minimum Object\u003c\/h3\u003e\n\u003cp\u003ePublished minimum detectable object is ø0.005 mm, enabling fine wire and small-part detection.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e1 m Free-Cut Fiber\u003c\/h3\u003e\n\u003cp\u003eFiber length of 1 m can be cut to the required installation length for flexible routing.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eR4 mm High-Flex Bend Radius\u003c\/h3\u003e\n\u003cp\u003eMinimum bend radius of R4 mm supports routing in compact machinery and moving applications.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eWide Temperature Range\u003c\/h3\u003e\n\u003cp\u003eRated for ambient temperatures from -40°C to +70°C.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSmall part detection on high-speed lines\u003c\/li\u003e\n\u003cli\u003eWire and thread presence monitoring\u003c\/li\u003e\n\u003cli\u003eLabel and edge detection\u003c\/li\u003e\n\u003cli\u003eSemiconductor manufacturing equipment\u003c\/li\u003e\n\u003cli\u003eMicro-object counting\u003c\/li\u003e\n\u003cli\u003ePackaging machinery inspection\u003c\/li\u003e\n\u003cli\u003eThrubeam sensing in tight spaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Keyence FU-59 Fiber Optic Sensor Unit. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Keyence FU-59?\u003c\/strong\u003e\nThe Keyence FU-59 is a thrubeam (transmissive) fiber optic sensor unit with a ø0.7 mm optical axis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the minimum detectable object of the FU-59?\u003c\/strong\u003e\nThe minimum detectable object is ø0.005 mm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the fiber unit length of the FU-59?\u003c\/strong\u003e\nThe fiber unit length is 1 m and is free-cut, allowing adjustment to the required length.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the minimum bend radius of the FU-59?\u003c\/strong\u003e\nThe minimum bend radius is R4 mm, and the fiber is designed for high-flex applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the ambient temperature range of the FU-59?\u003c\/strong\u003e\nThe ambient temperature range is -40°C to +70°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the FU-59 include an amplifier?\u003c\/strong\u003e\nNo. The FU-59 is a fiber unit that requires a compatible fiber amplifier for operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering the FU-59?\u003c\/strong\u003e\nConfirm that a thrubeam sensing arrangement is suitable, the ø0.7 mm optical axis matches the target size, and the fiber amplifier compatibility and routing space accommodate the R4 mm bend radius.\u003c\/p\u003e\u003c\/section\u003e\u003c\/main\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Keyence","offers":[{"title":"Default Title","offer_id":68061196877903,"sku":"LL1-KEY-FU-59","price":14.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/FU-59-01.jpg?v=1794023274","url":"https:\/\/yunshuotrade.com\/products\/keyence-fu-59-fiber-optic-sensor","provider":"yunshuotrade","version":"1.0","type":"link"}