{"product_id":"fibre-laser-protective-lens-29-4mm-15kw","title":"Fibre Laser Protective Lens – 29.4 × 1.5mm Fused Silica | 15kW","description":"\u003ch1\u003e\u003cspan\u003eFibre Laser Protective Lens – 29.4 × 1.5mm Fused Silica | 15kW\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eProtect sensitive optical components and maintain reliable fibre laser cutting performance with this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e29.4 × 1.5mm fused silica protective lens\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, specified for laser systems operating at a nominal wavelength of 1064nm and rated up to 15kW.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned to provide a protective barrier against cutting debris, molten metal spatter and airborne contamination, this replacement lens helps preserve internal cutting head optics and supports consistent cutting performance in demanding industrial applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from high-quality fused silica, it offers excellent thermal stability, optical clarity and resistance to temperature fluctuations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eReliable Protection for Fibre Laser Optics\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eProtective lenses play a vital role in maintaining the performance and reliability of fibre laser cutting systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring cutting operations, molten metal particles, dust and other contaminants can accumulate on exposed optical surfaces. Without an effective protective barrier, these contaminants can affect beam transmission, compromise cutting quality and potentially damage expensive internal optical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRegular inspection and timely replacement of protective lenses help maintain cutting efficiency while reducing the risk of unplanned machine downtime.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHigh-Performance Fused Silica Construction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from fused silica, this protective lens offers the thermal and optical characteristics required for industrial laser applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFused silica provides low thermal expansion, excellent thermal stability and high optical transparency at appropriate laser wavelengths.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen correctly specified and installed, the lens helps maintain efficient laser transmission with minimal optical distortion, supporting consistent beam quality and accurate cutting results.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features \u0026amp; Benefits\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrecision dimensions\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – 29.4mm diameter × 1.5mm thickness.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-quality fused silica\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Excellent thermal stability and optical properties.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e15kW stated power rating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Intended for compatible high-power fibre laser applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1064nm nominal wavelength\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Specified for near-infrared laser systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProtects sensitive internal optics\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Provides a barrier against cutting debris, spatter and airborne contamination.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSupports consistent cutting performance\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Helps preserve efficient beam transmission and cutting precision.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLow thermal expansion\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Helps maintain dimensional stability under changing operating temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReplaceable optical consumable\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Suitable for routine laser cutting head maintenance where the specified lens is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProtective lens \/ optical window\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDiameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e29.4mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFused silica\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal wavelength\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1064nm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStated maximum laser power\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15kW\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFibre laser cutting head protection\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCutting head compatibility\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRequires verification\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eCompatibility \u0026amp; Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis protective lens is intended for fibre laser cutting systems requiring a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e29.4 × 1.5mm fused silica optical window\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore ordering, confirm the protective lens dimensions, optical coating, power rating and compatibility with your specific cutting head model.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInspect lenses regularly for contamination, discolouration, scratches or other signs of damage. Always follow the cutting head manufacturer's recommended procedures for handling, cleaning and replacement.\u003c\/span\u003e\u003c\/p\u003e","brand":"Raytools","offers":[{"title":"Default Title","offer_id":57651031277941,"sku":"FL8-00147","price":13.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/1957\/4982\/files\/ProtectiveLens_Middle_Bottom_27.9mmx4.1mmFusedSilica1064nm4kw211LCG0037_6844066b-6ecd-4f0c-a673-84dc6a8abcd2.webp?v=1714479881","url":"https:\/\/mantechparts.co.uk\/products\/fibre-laser-protective-lens-29-4mm-15kw","provider":"Mantech Machinery Spares and Consumables","version":"1.0","type":"link"}