{"title":"Laser Protective Lens","description":"\u003ch2\u003eLink Metal CNC Full Series Laser Protective Lens | One-Stop Laser Consumable Solution\u003c\/h2\u003e\n\n\u003cp\u003eGet all the laser protective lenses you need in one place. Our full series delivers industrial-grade, high-performance optical consumables for all mainstream fiber laser cutting heads and handheld welding torches, with unified premium quality and 1:1 perfect fit for your equipment.\u003c\/p\u003e\n\n\u003ch3\u003eFull Series Coverage: All Models You Need In One Place\u003c\/h3\u003e\n\u003cp\u003eComplete compatibility with all mainstream laser equipment brands and models:\n\u003c\/p\u003e\u003cul\u003e\n  \u003cli\u003eCutting Head Series: Raytools, Precitec, Bodor, WSX, OSPRI, BOCI, HSG\u003c\/li\u003e\n  \u003cli\u003eWelding Torch Series: Qilin, CQWY Sup, Huanri, Sikai, WSX handheld welding torches\u003c\/li\u003e\n  \u003cli\u003eFull size coverage: D18\/D20\/D25\/D27.9\/D28\/D30\/D37\/D38.1, full thickness options\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\u003ch3\u003eUnified Industrial-Grade Quality\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eImported JGS1 fused silica material, 1064nm high transmittance, ultra-high damage threshold\u003c\/li\u003e\n  \u003cli\u003eDouble-sided anti-reflection coating, anti-splash, anti-scratch, 30% longer service life\u003c\/li\u003e\n  \u003cli\u003eUltra-precision polishing, no bubble, no impurity, stable laser output, reduce optical loss\u003c\/li\u003e\n  \u003cli\u003e100% full inspection before shipment, 1:1 original fit, plug and play, no debugging required\u003c\/li\u003e\n  \u003cli\u003eFactory-direct bulk supply, competitive price, lower your consumable procurement cost\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSuitable for 1064nm fiber laser cutting machines and handheld welding machines, widely used in sheet metal processing, hardware manufacturing, automotive parts, aerospace and other industrial laser processing scenarios.\u003c\/p\u003e\n\n\u003ch3\u003eCore Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Link Metal CNC\u003c\/li\u003e\n  \u003cli\u003eProduct Series: Laser Protective Lens\u003c\/li\u003e\n  \u003cli\u003eCore Material: JGS1 Fused Silica\u003c\/li\u003e\n  \u003cli\u003eApplicable Wavelength: 1064nm\u003c\/li\u003e\n  \u003cli\u003eCompatible Equipment: Raytools, Precitec, Bodor, WSX, Qilin, CQWY Sup Laser Cutting Heads \u0026amp; Welding Torches\u003c\/li\u003e\n  \u003cli\u003eApplicable Power: 1000W - 20000W\u003c\/li\u003e\n  \u003cli\u003eQuality Standard: 100% Full Inspection Before Shipment\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"laser-protective-lens-standard-version","title":"Link Metal CNC Laser Protective Lens for Fiber Laser Welding \u0026 Cutting Machines","description":"\u003ch2\u003eStandard Laser Protective Lens for Fiber Laser Cutting \u0026amp; Welding\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional industrial-grade fiber laser protective lenses, essential core consumables for all fiber laser cutting and welding machines.\u003c\/strong\u003e Designed to isolate dust, welding spatter and debris, our protective lenses safeguard the internal optical components of your laser head, ensuring stable laser output and long-term reliable equipment operation.\u003c\/p\u003e\n\n\u003cp\u003eThis standard version offers excellent cost-performance ratio with a complete range of 40+ conventional and customized sizes, dedicated models for 0-30KW+ lasers, and high-precision manufacturing for reliable optical performance in all industrial laser processing scenarios.\u003c\/p\u003e\n\n\u003ch3\u003eKey Advantages of Our Standard Protective Lenses\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Size \u0026amp; Full Power Coverage\u003c\/strong\u003e: Complete range of 40+ conventional and customized sizes with dedicated models for 0-15KW, 20KW, 30KW and high-power lasers. Provides 1:1 precision fit for all mainstream fiber laser cutting heads and welding guns on the market.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eHigh-Purity Fused Silica Material\u003c\/strong\u003e: Made from imported optical grade high-purity fused silica with exceptional transmittance of ≥99.8% at 1064nm wavelength. Features ultra-low absorption to effectively reduce laser energy loss and ensure stable cutting and welding power output.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eHigh Laser Damage Threshold\u003c\/strong\u003e: Professional anti-laser damage design can withstand long-term continuous high-power laser irradiation. Resists burning, effectively extends service life, and reduces replacement frequency and production costs.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eDouble-Sided Precision Hard Coating\u003c\/strong\u003e: Both sides feature anti-reflection, anti-scratch and anti-spatter coating with excellent hydrophobic and oleophobic properties. Resists dust and welding slag adhesion, is easy to clean, and maintains stable optical performance in harsh environments.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eUltra-High Precision CNC Polishing\u003c\/strong\u003e: Ultra-smooth optical surface with strict thickness and parallelism tolerance control. Free of bubbles, impurities and burrs, ensuring uniform laser spot and consistent processing quality.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eBroad Industrial Applicability\u003c\/strong\u003e: Suitable for 1064nm fiber laser cutting, handheld laser welding, automatic laser welding and robotic laser processing. Compatible with all common metal materials and widely used in various industrial fields.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Equipment \u0026amp; Available Size Options\u003c\/h3\u003e\n\n\u003ch4\u003eCompatible Equipment\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAll Mainstream Fiber Laser Cutting Machines\u003c\/li\u003e\n  \u003cli\u003eAll Handheld Laser Welding Machines\u003c\/li\u003e\n  \u003cli\u003eAll Automatic Laser Welding Systems\u003c\/li\u003e\n  \u003cli\u003eAll Robotic Laser Processing Equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAvailable Protective Lens Sizes (40+ Options)\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003e18*2\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e20*2, 20*3, 20*4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e21.5*2\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e22.35*4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e24.9*1.5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e25*2, 25*3, 25*4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e26.5*5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e27*2\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e27.9*4.1\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e28*2, 28*4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e29.7*4.7\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e30*1, 30*1.5, 30*2, 30*3, 30*4, 30*5, 30*5 (High-Power)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e32*2, 32*5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e34*5, 34*5 (0-15KW), 34*5 (20KW), 34*5 (30KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e35*1.6, 35*4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e36*3, 36*5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e37*1.6, 37*7, 37*7 (0-15KW), 37*7 (20KW), 37*7 (30KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e38*1.5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e40*2, 40*3, 40*5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e45*3\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e48*3\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e50*2\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e55*1.5, 55*9\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCustom Specifications Available\u003c\/strong\u003e: For custom sizes, special power models or other laser optical consumables, please \u003ca href=\"https:\/\/www.linkmetalcnc.com\/pages\/contact\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003econtact our sales team\u003c\/a\u003e directly for personalized solutions.\u003c\/p\u003e\n\n\u003ch3\u003eDetailed Technical Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n      \u003cth style=\"border: 1px solid #dee2e6; padding: 12px; text-align: left; font-weight: 600;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dee2e6; padding: 12px; text-align: left; font-weight: 600;\"\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eBrand\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eLink Metal CNC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eVersion\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eStandard Version\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eProduct Type\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eFiber Laser Protective Lens \/ Protective Window\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplicable Wavelength\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e1064nm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eBase Material\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eOptical Grade High-Purity Fused Silica\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eSurface Treatment\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eDouble-Sided Precision Hard Coating\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eTransmittance\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e≥99.8% @1064nm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplicable Power\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e0-30KW+ (matched with corresponding size models)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003ePackaging\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eClass A Dust-Free Sealed Independent Packaging\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplication Scenario\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eLaser Cutting, Handheld Welding, Automatic Welding, Robotic Processing\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Selected Link Metal CNC Laser Protective Lens (Standard Version)\u003c\/li\u003e\n  \u003cli\u003e1 x Class A Dust-Free Sealed Independent Packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality Assurance\u003c\/h3\u003e\n\u003cp\u003eEvery Link Metal CNC standard laser protective lens undergoes rigorous pre-delivery testing, including optical performance testing, size tolerance inspection, coating quality verification, laser damage threshold test and appearance inspection.\u003c\/p\u003e\n\n\u003cp\u003eWe maintain strict ISO 9001 quality control standards to ensure stable and reliable optical performance. All our products come with professional pre-sales consultation and comprehensive after-sales support.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between standard version and upgraded boxed version?\u003c\/strong\u003e\u003cbr\u003e\nA: The main differences are: 1) Packaging: Standard version uses basic dust-free packaging, while upgraded boxed version uses enhanced shock-proof and moisture-proof hard plastic boxes; 2) Coating quality: Upgraded boxed version features a more advanced double-sided hard coating with 40% longer service life; 3) Price: Standard version offers better cost-performance for general use, while upgraded boxed version is ideal for high-volume production.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I choose the correct protective lens size for my machine?\u003c\/strong\u003e\u003cbr\u003e\nA: The required size depends on your specific laser cutting head or welding gun model. You can find the size information in your machine's user manual, or measure your existing protective lens (diameter and thickness). If you are unsure, please contact our sales team with your cutting head model number for confirmation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the double-sided hard coating?\u003c\/strong\u003e\u003cbr\u003e\nA: The double-sided hard coating provides three key benefits: 1) Enhanced anti-reflection properties for maximum laser transmittance; 2) Improved anti-scratch and anti-spatter resistance; 3) Hydrophobic and oleophobic properties that make cleaning easier and extend service life.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace my protective lens?\u003c\/strong\u003e\u003cbr\u003e\nA: Replacement frequency depends on your usage intensity, material being processed and operating environment. Under normal conditions, protective lenses should be replaced every 1-2 weeks for high-volume production. Always replace the lens immediately if you notice any burns, cracks or significant spatter buildup.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I clean and reuse a protective lens?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, you can clean a lightly contaminated lens using isopropyl alcohol and lint-free optical wipes. However, once a lens has burns, deep scratches or significant spatter that cannot be removed, it must be replaced immediately to avoid damage to more expensive internal optical components.\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 30px; padding: 15px; background-color: #e3f2fd; border-radius: 4px;\"\u003e\n  View our \u003ca href=\"https:\/\/www.linkmetalcnc.com\/products\/laser-protective-lens-upgraded-boxed-version\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003eUpgraded Boxed Version\u003c\/a\u003e for enhanced performance, or browse our full range of \u003ca href=\"https:\/\/www.linkmetalcnc.com\/collections\/laser-cutting-accessories\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003elaser cutting accessories\u003c\/a\u003e and \u003ca href=\"https:\/\/www.linkmetalcnc.com\/collections\/laser-welding-accessories\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003elaser welding accessories\u003c\/a\u003e.\n\u003c\/p\u003e","brand":"Link Metal CNC","offers":[{"title":"18*2","offer_id":47961427804382,"sku":"LMCNC-PROTECT-LENS-18X2","price":0.66,"currency_code":"USD","in_stock":true},{"title":"20*2","offer_id":47961427837150,"sku":"LMCNC-PROTECT-LENS-20X2","price":0.76,"currency_code":"USD","in_stock":true},{"title":"20*3","offer_id":47961427869918,"sku":"LMCNC-PROTECT-LENS-20X3","price":0.83,"currency_code":"USD","in_stock":true},{"title":"20*4","offer_id":47961427902686,"sku":"LMCNC-PROTECT-LENS-20X4","price":0.83,"currency_code":"USD","in_stock":true},{"title":"21.5*2","offer_id":47961427935454,"sku":"LMCNC-PROTECT-LENS-21.5X2","price":0.95,"currency_code":"USD","in_stock":true},{"title":"22.35*4","offer_id":47961427968222,"sku":"LMCNC-PROTECT-LENS-22.35X4","price":1.06,"currency_code":"USD","in_stock":true},{"title":"24.9*1.5","offer_id":47961428000990,"sku":"LMCNC-PROTECT-LENS-24.9X1.5","price":1.3,"currency_code":"USD","in_stock":true},{"title":"25*2","offer_id":47961428033758,"sku":"LMCNC-PROTECT-LENS-25X2","price":2.24,"currency_code":"USD","in_stock":true},{"title":"25*3","offer_id":47961428066526,"sku":"LMCNC-PROTECT-LENS-25X3","price":2.01,"currency_code":"USD","in_stock":true},{"title":"25*4","offer_id":47961428099294,"sku":"LMCNC-PROTECT-LENS-25X4","price":1.77,"currency_code":"USD","in_stock":true},{"title":"25.4*4","offer_id":48005681447134,"sku":"LMCNC-PROTECT-LENS-25.4X4","price":1.84,"currency_code":"USD","in_stock":true},{"title":"26.5*5","offer_id":47961428132062,"sku":"LMCNC-PROTECT-LENS-26.5X5","price":2.01,"currency_code":"USD","in_stock":true},{"title":"27*2","offer_id":47961428164830,"sku":"LMCNC-PROTECT-LENS-27X2","price":1.42,"currency_code":"USD","in_stock":true},{"title":"27.9*4.1","offer_id":47961428197598,"sku":"LMCNC-PROTECT-LENS-27.9X4.1","price":1.06,"currency_code":"USD","in_stock":true},{"title":"28*2","offer_id":47961428230366,"sku":"LMCNC-PROTECT-LENS-28X2","price":1.65,"currency_code":"USD","in_stock":true},{"title":"28*4","offer_id":47961428263134,"sku":"LMCNC-PROTECT-LENS-28X4","price":1.06,"currency_code":"USD","in_stock":true},{"title":"29.7*4.7","offer_id":47961428295902,"sku":"LMCNC-PROTECT-LENS-29.7X4.7","price":1.42,"currency_code":"USD","in_stock":true},{"title":"30*1","offer_id":47961428328670,"sku":"LMCNC-PROTECT-LENS-30X1","price":2.01,"currency_code":"USD","in_stock":true},{"title":"30*1.5","offer_id":47961428361438,"sku":"LMCNC-PROTECT-LENS-30X1.5","price":2.13,"currency_code":"USD","in_stock":true},{"title":"30*2","offer_id":47961428394206,"sku":"LMCNC-PROTECT-LENS-30X2","price":1.42,"currency_code":"USD","in_stock":true},{"title":"30*3","offer_id":47961428426974,"sku":"LMCNC-PROTECT-LENS-30X3","price":1.87,"currency_code":"USD","in_stock":true},{"title":"30*4","offer_id":47961428459742,"sku":"LMCNC-PROTECT-LENS-30X4","price":1.42,"currency_code":"USD","in_stock":true},{"title":"30*5","offer_id":47961428492510,"sku":"LMCNC-PROTECT-LENS-30X5","price":1.06,"currency_code":"USD","in_stock":true},{"title":"30*5 (High-Power)","offer_id":47961428525278,"sku":"LMCNC-PROTECT-LENS-30X5-HIGHPOWER","price":2.84,"currency_code":"USD","in_stock":true},{"title":"30*5(Genuine)","offer_id":48005681479902,"sku":"LMCNC-PROTECT-LENS-30X5-GENUINE","price":4.25,"currency_code":"USD","in_stock":true},{"title":"32*2","offer_id":47961428558046,"sku":"LMCNC-PROTECT-LENS-32X2","price":2.95,"currency_code":"USD","in_stock":true},{"title":"32*5","offer_id":47961428590814,"sku":"LMCNC-PROTECT-LENS-32X5","price":2.48,"currency_code":"USD","in_stock":true},{"title":"34*5","offer_id":47961428623582,"sku":"LMCNC-PROTECT-LENS-34X5","price":2.13,"currency_code":"USD","in_stock":true},{"title":"34*5 (0-15KW)","offer_id":47961428656350,"sku":"LMCNC-PROTECT-LENS-34X5-0-15KW","price":3.78,"currency_code":"USD","in_stock":true},{"title":"34*5 (20KW)","offer_id":47961428689118,"sku":"LMCNC-PROTECT-LENS-34X5-20KW","price":4.49,"currency_code":"USD","in_stock":true},{"title":"34*5 (30KW)","offer_id":47961428721886,"sku":"LMCNC-PROTECT-LENS-34X5-30KW","price":6.62,"currency_code":"USD","in_stock":true},{"title":"34*5(40kw)","offer_id":48005681512670,"sku":"LMCNC-PROTECT-LENS-34X5-40KW","price":8.27,"currency_code":"USD","in_stock":true},{"title":"35*1.6","offer_id":47961428754654,"sku":"LMCNC-PROTECT-LENS-35X1.6","price":3.31,"currency_code":"USD","in_stock":true},{"title":"35*4","offer_id":47961428787422,"sku":"LMCNC-PROTECT-LENS-35X4","price":2.48,"currency_code":"USD","in_stock":true},{"title":"36*3","offer_id":47961428820190,"sku":"LMCNC-PROTECT-LENS-36X3","price":4.25,"currency_code":"USD","in_stock":true},{"title":"36*5","offer_id":47961428852958,"sku":"LMCNC-PROTECT-LENS-36X5","price":4.25,"currency_code":"USD","in_stock":true},{"title":"37*1.6","offer_id":47961428885726,"sku":"LMCNC-PROTECT-LENS-37X1.6","price":3.19,"currency_code":"USD","in_stock":true},{"title":"37*7","offer_id":47961428918494,"sku":"LMCNC-PROTECT-LENS-37X7","price":2.36,"currency_code":"USD","in_stock":true},{"title":"37*7 (0-15KW)","offer_id":47961428951262,"sku":"LMCNC-PROTECT-LENS-37X7-0-15KW","price":3.78,"currency_code":"USD","in_stock":true},{"title":"37*7 (20KW)","offer_id":47961428984030,"sku":"LMCNC-PROTECT-LENS-37X7-20KW","price":5.2,"currency_code":"USD","in_stock":true},{"title":"37*7 (30kw)","offer_id":47961429016798,"sku":"LMCNC-PROTECT-LENS-37X7-30KW","price":6.81,"currency_code":"USD","in_stock":true},{"title":"38*1.5","offer_id":47961429049566,"sku":"LMCNC-PROTECT-LENS-38X1.5","price":4.02,"currency_code":"USD","in_stock":true},{"title":"40*2","offer_id":47961429082334,"sku":"LMCNC-PROTECT-LENS-40X2","price":3.78,"currency_code":"USD","in_stock":true},{"title":"40*3","offer_id":47961429115102,"sku":"LMCNC-PROTECT-LENS-40X3","price":3.78,"currency_code":"USD","in_stock":true},{"title":"40*5","offer_id":47961429147870,"sku":"LMCNC-PROTECT-LENS-40X5","price":3.78,"currency_code":"USD","in_stock":true},{"title":"45*3","offer_id":47961429180638,"sku":"LMCNC-PROTECT-LENS-45X3","price":4.25,"currency_code":"USD","in_stock":true},{"title":"48*3","offer_id":47961429213406,"sku":"LMCNC-PROTECT-LENS-48X3","price":4.73,"currency_code":"USD","in_stock":true},{"title":"50*2","offer_id":47961429246174,"sku":"LMCNC-PROTECT-LENS-50X2","price":4.73,"currency_code":"USD","in_stock":true},{"title":"55*1.5","offer_id":47961429278942,"sku":"LMCNC-PROTECT-LENS-55X1.5","price":4.02,"currency_code":"USD","in_stock":true},{"title":"55*9","offer_id":47961429311710,"sku":"LMCNC-PROTECT-LENS-55X9","price":13.0,"currency_code":"USD","in_stock":true},{"title":"10*1","offer_id":48005681545438,"sku":null,"price":2.84,"currency_code":"USD","in_stock":true},{"title":"Other models please contact us","offer_id":48017460429022,"sku":null,"price":0.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/8858\/5950\/files\/link-metal-cnc-laser-protective-lens-collection-main_e44be8ad-b04e-40f2-a32e-677c9d3721bf.jpg?v=1774344532"},{"product_id":"laser-protective-lens-upgraded-boxed-version","title":"Link Metal CNC Laser Protective Lens (Upgraded Boxed Version) for Fiber Laser Welding \u0026 Cutting Machines","description":"\u003ch2\u003eUpgraded Boxed Laser Protective Lens for Cutting \u0026amp; Welding\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional industrial-grade upgraded boxed fiber laser protective lenses, essential core consumables for all fiber laser cutting and welding machines.\u003c\/strong\u003e Designed to isolate dust, welding spatter and debris, our protective lenses safeguard the internal optical components of your laser head, ensuring stable laser output and long-term reliable equipment operation.\u003c\/p\u003e\n\n\u003cp\u003eThis upgraded boxed version features class A dust-free independent sealed packaging, enhanced optical coating and stricter quality control. We offer a complete range of 35+ conventional and customized sizes with dedicated models for 0-40KW lasers, delivering excellent optical performance for all industrial laser processing scenarios.\u003c\/p\u003e\n\n\u003ch3\u003eKey Advantages of Our Upgraded Boxed Protective Lenses\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpgraded Dust-Free Boxed Packaging\u003c\/strong\u003e: Each lens is individually packaged in a class 100 dust-free environment with anti-static, shock-proof and moisture-proof protection. Eliminates secondary pollution during transportation and storage, keeping the lens in optimal condition before use—no pre-cleaning required, direct installation.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eFull Size \u0026amp; Full Power Coverage\u003c\/strong\u003e: Complete range of 35+ conventional and customized sizes with dedicated models for 0-15KW, 20KW, 30KW and 40KW lasers. Provides 1:1 precision fit for all mainstream fiber laser cutting heads and welding guns on the market.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eImported Optical Grade Fused Silica\u003c\/strong\u003e: Made from premium high-purity fused silica material with exceptional transmittance of ≥99.8% at 1064nm wavelength. Features ultra-low absorption to effectively reduce laser energy loss and ensure stable cutting and welding power output.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eUpgraded Double-Sided Hard Coating\u003c\/strong\u003e: Both sides feature enhanced anti-reflection, anti-scratch and anti-spatter coating with excellent hydrophobic and oleophobic properties. Resists dust and welding slag adhesion, is easy to clean, and has a higher laser damage threshold.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eUltra-High Precision CNC Polishing\u003c\/strong\u003e: Ultra-smooth optical surface with strict thickness and parallelism tolerance control. Free of bubbles, impurities and burrs, ensuring uniform laser spot, avoiding beam deviation, and improving cutting and welding precision.\u003c\/li\u003e\n  \n  \u003cli\u003e\n\u003cstrong\u003eBroad Industrial Applicability\u003c\/strong\u003e: Suitable for 1064nm fiber laser cutting, handheld laser welding, automatic laser welding and robotic laser processing. Compatible with all common metal materials and widely used in various industrial fields.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Equipment \u0026amp; Available Size Options\u003c\/h3\u003e\n\n\u003ch4\u003eCompatible Equipment\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAll Mainstream Fiber Laser Cutting Machines\u003c\/li\u003e\n  \u003cli\u003eAll Handheld Laser Welding Machines\u003c\/li\u003e\n  \u003cli\u003eAll Automatic Laser Welding Systems\u003c\/li\u003e\n  \u003cli\u003eAll Robotic Laser Processing Equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAvailable Protective Lens Sizes (35+ Options)\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eD18 T2\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD20 T2, D20 T3, D20 T4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD21.5 T2 (0-20KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD22.35 T4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD24.9 T1.5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD25.4 T4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD27 T2\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD27.9 T4.1\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD28 T4\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD30 T2, D30 T4, D30 T5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD32 T2 (0-15KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD34 T5 (0-15KW), D34 T5 (20KW), D34 T5 (30KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD36 T3 (0-15KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD37 T5 (0-15KW), D37 T5 (20KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD37 T7 (0-15KW), D37 T7 (20KW), D37 T7 (30KW), D37 T7 (40KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD38 T2\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD40 T5 (0-20KW), D40 T7 (0-20KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD42 T4 (0-15KW), D42 T9 (0-15KW)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD50 T2 (0-20KW), D50 T5\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eD55 T9 (0-20KW), D55 T9 (30KW)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCustom Specifications Available\u003c\/strong\u003e: For custom sizes, special power models or other laser optical consumables, please \u003ca href=\"https:\/\/www.linkmetalcnc.com\/pages\/contact\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003econtact our sales team\u003c\/a\u003e directly for personalized solutions.\u003c\/p\u003e\n\n\u003ch3\u003eDetailed Technical Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n      \u003cth style=\"border: 1px solid #dee2e6; padding: 12px; text-align: left; font-weight: 600;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dee2e6; padding: 12px; text-align: left; font-weight: 600;\"\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eBrand\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eLink Metal CNC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eVersion\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eUpgraded Boxed Version\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eProduct Type\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eFiber Laser Protective Lens \/ Protective Window\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplicable Wavelength\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e1064nm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eBase Material\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eOptical Grade High-Purity Fused Silica\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eSurface Treatment\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eUpgraded Double-Sided Precision Hard Coating\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eTransmittance\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e≥99.8% @1064nm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplicable Power\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003e0-40KW (matched with corresponding size models)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003ePackaging\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eClass A Dust-Free Independent Sealed Box\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eApplication Scenario\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dee2e6; padding: 12px;\"\u003eLaser Cutting, Handheld Welding, Automatic Welding, Robotic Processing\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Selected Link Metal CNC Laser Protective Lens (Upgraded Boxed Version)\u003c\/li\u003e\n  \u003cli\u003e1 x Class A Dust-Free Sealed Independent Box + Shock-Proof Protective Lining\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality Assurance\u003c\/h3\u003e\n\u003cp\u003eEvery Link Metal CNC upgraded boxed laser protective lens undergoes rigorous pre-delivery testing in a dust-free environment, including optical performance testing, size tolerance inspection, coating quality verification, laser damage threshold test and appearance inspection.\u003c\/p\u003e\n\n\u003cp\u003eWe maintain strict ISO 9001 quality control standards to ensure stable and reliable optical performance. All our products come with professional pre-sales consultation and comprehensive after-sales support.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I choose the correct protective lens size for my machine?\u003c\/strong\u003e\u003cbr\u003e\nA: The required size depends on your specific laser cutting head or welding gun model. You can find the size information in your machine's user manual, or measure your existing protective lens (diameter and thickness). If you are unsure, please contact our sales team with your cutting head model number for confirmation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the advantage of the upgraded boxed version over bulk packaging?\u003c\/strong\u003e\u003cbr\u003e\nA: Our upgraded boxed version provides class 100 dust-free independent packaging that protects the lens from contamination, scratches and moisture during transportation and storage. Lenses arrive in perfect condition and can be installed directly without pre-cleaning, saving you time and reducing the risk of damage during handling.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the double-sided hard coating?\u003c\/strong\u003e\u003cbr\u003e\nA: The upgraded double-sided hard coating provides three key benefits: 1) Enhanced anti-reflection properties for maximum laser transmittance; 2) Improved anti-scratch and anti-spatter resistance; 3) Hydrophobic and oleophobic properties that make cleaning easier and extend service life by over 40% compared to ordinary lenses.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace my protective lens?\u003c\/strong\u003e\u003cbr\u003e\nA: Replacement frequency depends on your usage intensity, material being processed and operating environment. Under normal conditions, protective lenses should be replaced every 1-2 weeks for high-volume production. Always replace the lens immediately if you notice any burns, cracks or significant spatter buildup.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I clean and reuse a protective lens?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, you can clean a lightly contaminated lens using isopropyl alcohol and lint-free optical wipes. However, once a lens has burns, deep scratches or significant spatter that cannot be removed, it must be replaced immediately to avoid damage to more expensive internal optical components.\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 30px; padding: 15px; background-color: #e3f2fd; border-radius: 4px;\"\u003e\n  View our full range of \u003ca href=\"https:\/\/www.linkmetalcnc.com\/collections\/laser-cutting-accessories\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003elaser cutting accessories\u003c\/a\u003e and \u003ca href=\"https:\/\/www.linkmetalcnc.com\/collections\/laser-welding-accessories\" style=\"color: #1976d2 !important; text-decoration: none; font-weight: 500 !important;\"\u003elaser welding accessories\u003c\/a\u003e.\n\u003c\/p\u003e","brand":"Link Metal CNC","offers":[{"title":"D18 T2","offer_id":47961456541918,"sku":"LMCNC-PROTECT-LENS-BOX-D18T2","price":0.99,"currency_code":"USD","in_stock":true},{"title":"D20 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