{"title":"Laser Protective Lenses (Protective Windows)","description":"\u003cdiv style=\"font-size:14px; line-height:1.65\"\u003e\n  \u003cp\u003e\u003cstrong\u003eLaser Protective Lenses \/ QBH Protective Windows\u003c\/strong\u003e for fiber laser cutting \u0026amp; welding heads — original and compatible options for Raytools, WSX, BOCI, Precitec, Bystronic, etc.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eCommon sizes\u003c\/strong\u003e: D21.5×2, D22×2, D22×4 (QBH), D24×1.5, D25.4×2, D27.9×4.1, D30×5, D34×4… \u003cem\u003e(check product page for full list)\u003c\/em\u003e\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: fused silica; \u003cstrong\u003eCoating\u003c\/strong\u003e: high-transmission AR\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUse\u003c\/strong\u003e: protects focusing\/colimating optics from smoke \u0026amp; spatter\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrands\u003c\/strong\u003e: Raytools \/ WSX \/ BOCI \/ Precitec \/ OSPRI …\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePacking\u003c\/strong\u003e: individual sealed bag; lot \u0026amp; QC label for traceability\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cstrong\u003eTip\u003c\/strong\u003e: Select by \u003cem\u003ehead brand \u0026amp; model\u003c\/em\u003e and \u003cem\u003esize (Ø × thickness)\u003c\/em\u003e. If unsure, send a photo of the head label and current lens size.\u003c\/p\u003e\n\u003c\/div\u003e\n","products":[{"product_id":"precitec-original-protective-lens","title":"Precitec Original Protective Lens","description":"\u003cp data-end=\"491\" data-start=\"165\"\u003eThis Precitec original protective lens is designed specifically for laser cutting machines, made from high-quality materials to offer excellent protection and prolong the lifespan of your equipment. Each specification is suitable for different laser cutting needs, ensuring stability and high precision in the cutting process.\u003c\/p\u003e\n\u003cp data-end=\"512\" data-start=\"493\"\u003e\u003cstrong data-end=\"512\" data-start=\"493\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"584\" data-start=\"513\"\u003e\n\u003cli data-end=\"527\" data-start=\"513\"\u003e\n\u003cp data-end=\"527\" data-start=\"515\"\u003e21.5mm x 2mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"543\" data-start=\"528\"\u003e\n\u003cp data-end=\"543\" data-start=\"530\"\u003e22.35mm x 4mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"558\" data-start=\"544\"\u003e\n\u003cp data-end=\"558\" data-start=\"546\"\u003e24.4mm x 2mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"571\" data-start=\"559\"\u003e\n\u003cp data-end=\"571\" data-start=\"561\"\u003e37mm x 7mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"584\" data-start=\"572\"\u003e\n\u003cp data-end=\"584\" data-start=\"574\"\u003e50mm x 2mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Chase Laser","offers":[{"title":"21.5mm x 2mm","offer_id":51912179286289,"sku":null,"price":53.75,"currency_code":"USD","in_stock":true},{"title":"22.35mm x 4mm","offer_id":51912179319057,"sku":null,"price":53.75,"currency_code":"USD","in_stock":true},{"title":"24.4mm x 2mm","offer_id":51912179351825,"sku":null,"price":73.2,"currency_code":"USD","in_stock":true},{"title":"37mm x 7mm","offer_id":51912179384593,"sku":null,"price":66.55,"currency_code":"USD","in_stock":true},{"title":"50mm x 2mm","offer_id":51912179417361,"sku":null,"price":66.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/9867\/0353\/files\/Precitec_Original_Laser_Protection_Lens_for_Cutting_Machines.jpg?v=1755244236"},{"product_id":"ospri-original-protective-window","title":"OSPRI Original Protective Window for Laser Cutting – All Sizes","description":"\u003cp\u003e\u003cstrong\u003eOSPRI Original Protective Windows – All Specifications\u003c\/strong\u003e\u003cbr\u003e\nHigh-quality OSPRI original protective windows for laser cutting machines. Designed for precision, durability, and stable performance across multiple power levels.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%; text-align: center;\"\u003e\n  \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n    \u003cth\u003eSpecification (mm)\u003c\/th\u003e\n    \u003cth\u003ePower Compatibility\u003c\/th\u003e\n    \u003cth\u003eModel\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e20×3\u003c\/td\u003e\n    \u003ctd\u003e4000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-20x3-4000W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e30×5\u003c\/td\u003e\n    \u003ctd\u003e4000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-30x5-4000W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e37×7\u003c\/td\u003e\n    \u003ctd\u003e6000W \/ 8000W \/ 15000W \/ 20000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-37x7-(6k–20k)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e50×2\u003c\/td\u003e\n    \u003ctd\u003e6000W \/ 12000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-50x2-(6k–12k)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e21.5×2\u003c\/td\u003e\n    \u003ctd\u003e4000W \/ 6000W \/ 8000W \/ 15000W \/ 20000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-21.5x2-(4k–20k)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e37×3\u003c\/td\u003e\n    \u003ctd\u003e15000W \/ 20000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-37x3-(15k–20k)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e25.4×3\u003c\/td\u003e\n    \u003ctd\u003e4000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-25.4x3-4000W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e34×5\u003c\/td\u003e\n    \u003ctd\u003e15000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-34x5-15000W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003ePMD34T5\u003c\/td\u003e\n    \u003ctd\u003e20000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-PMD34T5-20000W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e32×2\u003c\/td\u003e\n    \u003ctd\u003e15000W \/ 20000W\u003c\/td\u003e\n    \u003ctd\u003eOSPRI-PW-32x2-(15k–20k)\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh transmission with low absorption\u003c\/li\u003e\n  \u003cli\u003eDurable coating for extended service life\u003c\/li\u003e\n  \u003cli\u003ePrecision fit for OSPRI laser cutting systems\u003c\/li\u003e\n  \u003cli\u003eMultiple sizes to match different power ranges\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"OSPRI","offers":[{"title":"20*3","offer_id":51919334506769,"sku":"OSPRI-20x3","price":3.62,"currency_code":"USD","in_stock":true},{"title":"30*5 (4000W)","offer_id":51919334539537,"sku":"OSPRI-30x5(4000W)","price":4.18,"currency_code":"USD","in_stock":true},{"title":"37*7 (6000W)","offer_id":51919334572305,"sku":"OSPRI-37x7(6000W)","price":11.14,"currency_code":"USD","in_stock":true},{"title":"37*7 (8000W)","offer_id":51919334605073,"sku":"OSPRI-37x7(8000W)","price":19.93,"currency_code":"USD","in_stock":true},{"title":"37*7 (15000W)","offer_id":51919334637841,"sku":"OSPRI-37x7(15000W)","price":18.11,"currency_code":"USD","in_stock":true},{"title":"50*2 (6000W)","offer_id":51919334670609,"sku":"OSPRI-50x2(6000W)","price":27.86,"currency_code":"USD","in_stock":true},{"title":"21.5*2 (4000W)","offer_id":51919334703377,"sku":"OSPRI-21.5x2(4000W)","price":15.32,"currency_code":"USD","in_stock":true},{"title":"21.5*2 (6000W)","offer_id":51919334736145,"sku":"OSPRI-21.5x2(6000W)","price":16.72,"currency_code":"USD","in_stock":true},{"title":"21.5*2 (8000W)","offer_id":51919334768913,"sku":"OSPRI-21.5x2(8000W)","price":18.11,"currency_code":"USD","in_stock":true},{"title":"21.5*2 (15000W)","offer_id":51919334801681,"sku":"OSPRI-21.5x2(15000W)","price":20.89,"currency_code":"USD","in_stock":true},{"title":"50*2 (12000W)","offer_id":51919334834449,"sku":"OSPRI-50x2(12000W)","price":41.79,"currency_code":"USD","in_stock":true},{"title":"37*3 (15000W)","offer_id":51919334867217,"sku":"OSPRI-37x3(15000W)","price":23.68,"currency_code":"USD","in_stock":true},{"title":"37*3 (20000W)","offer_id":51919334899985,"sku":"OSPRI-37x3(20000W)","price":32.04,"currency_code":"USD","in_stock":true},{"title":"25.4*3 (4000W)","offer_id":51919334932753,"sku":"OSPRI-25.4x3(4000W)","price":18.11,"currency_code":"USD","in_stock":true},{"title":"34*5 (15000W)","offer_id":51919334965521,"sku":"OSPRI-34x5(15000W)","price":18.11,"currency_code":"USD","in_stock":true},{"title":"PMD34T5 (20000W)","offer_id":51919334998289,"sku":"OSPRI-PMD34T5(20000W)","price":19.5,"currency_code":"USD","in_stock":true},{"title":"32*2 (15000W)","offer_id":51919335031057,"sku":"OSPRI-32x2(15000W)","price":27.86,"currency_code":"USD","in_stock":true},{"title":"32*2 (20000W)","offer_id":51919335063825,"sku":"OSPRI-32x2(20000W)","price":41.79,"currency_code":"USD","in_stock":true},{"title":"21.5*2 (20000W)","offer_id":51919335096593,"sku":"OSPRI-21.5x2(20000W)","price":27.86,"currency_code":"USD","in_stock":true},{"title":"37*7 (20000W)","offer_id":51919335129361,"sku":"OSPRI-37x7(20000W)","price":20.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/9867\/0353\/files\/ospri-protective-windows-all-models_jpg.jpg?v=1755519674"},{"product_id":"boci-original-protective-lens","title":"BOCI Original Protective Lens – D25.4\/D34\/D37\/D50 | High‑Transmission AR Window","description":"\n\u003ch2\u003eBOCI Original Protective Lens\u003c\/h2\u003e\n\u003cp\u003eGenuine protective window for \u003cstrong\u003eBOCI laser cutting heads\u003c\/strong\u003e. Made from high‑purity fused silica with double‑sided AR coating for high transmission and a high laser‑damage threshold. Designed to block fumes, dust and back‑spatter to protect the internal collimating and focusing optics.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOriginal BOCI quality\u003c\/strong\u003e – consistent size tolerance and flatness\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh transmission\u003c\/strong\u003e – double‑sided AR coating, low absorption\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh damage threshold\u003c\/strong\u003e – resistant to debris and back‑reflection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean sealing\u003c\/strong\u003e – reduces contamination, extends cutting head service life\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast replacement\u003c\/strong\u003e – drop‑in sizes for BOCI cutting heads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eD25.4 T4 (3KW)\u003c\/li\u003e\n\u003cli\u003eD34.0 T5 (8KW)\u003c\/li\u003e\n\u003cli\u003eD34.0 T5 (15KW)\u003c\/li\u003e\n\u003cli\u003eD34.0 T5 (20KW)\u003c\/li\u003e\n\u003cli\u003eD34.0 T5 (30KW)\u003c\/li\u003e\n\u003cli\u003eD34.0 T5 (40KW)\u003c\/li\u003e\n\u003cli\u003eD34.0 T5 (60KW)\u003c\/li\u003e\n\u003cli\u003eD50.0 T8 (60KW)\u003c\/li\u003e\n\u003cli\u003eD37.0 T7 (80KW)\u003c\/li\u003e\n\u003cli\u003eD37.0 T7 (100KW)\u003c\/li\u003e\n\u003cli\u003eD37.0 T7 (120KW)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e“D” = diameter (mm), “T” = thickness (mm)\u003c\/li\u003e\n  \u003cli\u003eSelect the size according to your cutting head model and power rating\u003c\/li\u003e\n  \u003cli\u003ePackaged in clean room conditions; each piece individually inspected\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eLarge inventory • Global express shipping • OEM \u0026amp; wholesale supported.\u003c\/em\u003e\u003c\/p\u003e\n","brand":"Chase Laser","offers":[{"title":"D25.4 T4 (3KW)","offer_id":51919767339281,"sku":"BOCI-PL-D25.4T4-3KW","price":8.29,"currency_code":"USD","in_stock":true},{"title":"D34.0 T5 (8KW)","offer_id":51919767372049,"sku":"BOCI-PL-D34.0T5-8KW","price":15.56,"currency_code":"USD","in_stock":true},{"title":"D34.0 T5 (15KW)","offer_id":51919767404817,"sku":"BOCI-PL-D34.0T5-15KW","price":27.0,"currency_code":"USD","in_stock":true},{"title":"D34.0 T5 (20KW)","offer_id":51919767437585,"sku":"BOCI-PL-D34.0T5-20KW","price":38.49,"currency_code":"USD","in_stock":true},{"title":"D34.0 T5 (30KW)","offer_id":51919767470353,"sku":"BOCI-PL-D34.0T5-30KW","price":45.13,"currency_code":"USD","in_stock":true},{"title":"D34.0 T5 (40KW)","offer_id":51919767503121,"sku":"BOCI-PL-D34.0T5-40KW","price":53.92,"currency_code":"USD","in_stock":true},{"title":"D34.0 T5 (60KW)","offer_id":51919767535889,"sku":"BOCI-PL-D34.0T5-60KW","price":67.84,"currency_code":"USD","in_stock":true},{"title":"D50.0 T8 (60KW)","offer_id":51919767568657,"sku":"BOCI-PL-D50.0T8-60KW","price":87.84,"currency_code":"USD","in_stock":true},{"title":"D37.0 T7 (80KW)","offer_id":51919767601425,"sku":"BOCI-PL-D37.0T7-80KW","price":91.75,"currency_code":"USD","in_stock":true},{"title":"D37.0 T7 (100KW)","offer_id":51919767634193,"sku":"BOCI-PL-D37.0T7-100KW","price":100.21,"currency_code":"USD","in_stock":true},{"title":"D37.0 T7 (120KW)","offer_id":51919767666961,"sku":"BOCI-PL-D37.0T7-120KW","price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/9867\/0353\/files\/boci-original-protective-lens-d25-d50_jpg.jpg?v=1755532771"},{"product_id":"raytools-original-protective-lenses","title":"Raytools Original Laser Protective Windows","description":"\u003ch2\u003eOriginal Raytools Laser Protective Windows\u003c\/h2\u003e\n\u003cp\u003eGenuine Raytools protective windows for fiber laser cutting heads. These coated optical glass windows help shield internal collimation and focus optics from smoke, dust and cutting spatter.\u003c\/p\u003e\n\u003ch3\u003eAvailable Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDiameter × Thickness\u003c\/th\u003e\n\u003cth\u003eWavelength\u003c\/th\u003e\n\u003cth\u003ePower Rating\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eD24.9 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD27.9 × 4.1 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0037\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD27.9 × 4.1 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eXO.LCG01.0114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD22.4 × 4.1 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0034\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD37 × 7 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0078\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD37 × 7 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0078E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD37 × 1.6 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0045\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD37 × 1.6 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003ctd\u003e211LCG0085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD30 × 5 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0068\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD50 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0069\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD30 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0073\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD20 × 3 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0129\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD38 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0075\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD38.1 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD38.1 × 1.6 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0076\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD50 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e900–1100 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0070\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD55 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD24.9 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003e15 kW\u003c\/td\u003e\n\u003ctd\u003e211LCG0086\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD26 × 3 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0127\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD18 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e211LCG0131\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD37 × 7 mm\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e30 kW\u003c\/td\u003e\n\u003ctd\u003e211LCG0125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD50 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003e20 kW\u003c\/td\u003e\n\u003ctd\u003eXO.LCG01.0108\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD37 × 5 mm\u003c\/td\u003e\n\u003ctd\u003e1064 nm\u003c\/td\u003e\n\u003ctd\u003e6 kW\u003c\/td\u003e\n\u003ctd\u003eXO.LCG01.0111\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSelection Guide\u003c\/h3\u003e\n\u003cp\u003eMatch the complete Raytools part number, diameter and thickness before ordering. Protective windows with similar dimensions can use different coatings or laser-power ratings and might not be interchangeable. Send a photo of the cutting-head nameplate or original package label if you need compatibility assistance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Raytools\u003c\/li\u003e\n\u003cli\u003eMaterial: coated optical glass\u003c\/li\u003e\n\u003cli\u003eApplication: fiber laser cutting head protection\u003c\/li\u003e\n\u003cli\u003eCondition: new replacement optic\u003c\/li\u003e\n\u003cli\u003ePackage contents: one selected protective window\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Raytools","offers":[{"title":"D18 × 2 mm | 1064 nm | 211LCG0131","offer_id":52069981651217,"sku":"211LCG0131","price":4.17,"currency_code":"USD","in_stock":true},{"title":"D24.9 × 1.5 mm | 1064 nm | 211LCG0020","offer_id":52069981421841,"sku":"211LCG0020","price":4.5,"currency_code":"USD","in_stock":true},{"title":"D27.9 × 4.1 mm | 1064 nm | 211LCG0037","offer_id":52069981454609,"sku":"211LCG0037","price":4.5,"currency_code":"USD","in_stock":true},{"title":"D27.9 × 4.1 mm | 1064 nm | XO.LCG01.0114","offer_id":52069981487377,"sku":"XO.LCG01.0114","price":5.21,"currency_code":"USD","in_stock":true},{"title":"D24.9 × 1.5 mm | 1064 nm | 15 kW | 211LCG0086","offer_id":52069981520145,"sku":"211LCG0086","price":17.85,"currency_code":"USD","in_stock":true},{"title":"D37 × 7 mm | 1064 nm | 211LCG0078","offer_id":52069981552913,"sku":"211LCG0078","price":19.34,"currency_code":"USD","in_stock":true},{"title":"D37 × 7 mm | 1064 nm | 211LCG0078E","offer_id":52069981585681,"sku":"211LCG0078E","price":8.93,"currency_code":"USD","in_stock":true},{"title":"D37 × 1.6 mm | 1064 nm | 211LCG0045","offer_id":52069981618449,"sku":"211LCG0045","price":17.85,"currency_code":"USD","in_stock":true},{"title":"D37 × 1.6 mm | 1064 nm | 15 kW | 211LCG0085","offer_id":54467446014225,"sku":"211LCG0085","price":22.32,"currency_code":"USD","in_stock":true},{"title":"D30 × 5 mm | 1064 nm | 211LCG0068","offer_id":54467446046993,"sku":"211LCG0068","price":7.44,"currency_code":"USD","in_stock":true},{"title":"D50 × 2 mm | 1064 nm | 211LCG0069","offer_id":54467446079761,"sku":"211LCG0069","price":17.2,"currency_code":"USD","in_stock":true},{"title":"D30 × 1.5 mm | 1064 nm | 211LCG0073","offer_id":54467446112529,"sku":"211LCG0073","price":12.65,"currency_code":"USD","in_stock":true},{"title":"D20 × 3 mm | 1064 nm | 211LCG0129","offer_id":54467446145297,"sku":"211LCG0129","price":4.91,"currency_code":"USD","in_stock":true},{"title":"D38 × 2 mm | 1064 nm | 211LCG0075","offer_id":54467446178065,"sku":"211LCG0075","price":13.4,"currency_code":"USD","in_stock":true},{"title":"D38.1 × 1.5 mm | 1064 nm | 211LCG0009","offer_id":54467446210833,"sku":"211LCG0009","price":21.57,"currency_code":"USD","in_stock":true},{"title":"D38.1 × 1.6 mm | 1064 nm | 211LCG0076","offer_id":54467446243601,"sku":"211LCG0076","price":16.83,"currency_code":"USD","in_stock":true},{"title":"D50 × 2 mm | 900–1100 nm | 211LCG0070","offer_id":54467446276369,"sku":"211LCG0070","price":22.35,"currency_code":"USD","in_stock":true},{"title":"D55 × 1.5 mm | 1064 nm | 211LCG0021","offer_id":54467446309137,"sku":"211LCG0021","price":25.0,"currency_code":"USD","in_stock":true},{"title":"D26 × 3 mm | 1064 nm | 211LCG0127","offer_id":54467446341905,"sku":"211LCG0127","price":5.95,"currency_code":"USD","in_stock":true},{"title":"D37 × 7 mm | 30 kW | 211LCG0125","offer_id":54467446374673,"sku":"211LCG0125","price":15.65,"currency_code":"USD","in_stock":true},{"title":"D50 × 2 mm | 1064 nm | 20 kW | XO.LCG01.0108","offer_id":54467446407441,"sku":"XO.LCG01.0108","price":34.22,"currency_code":"USD","in_stock":true},{"title":"D37 × 5 mm | 1064 nm | 6 kW | XO.LCG01.0111","offer_id":54467446440209,"sku":"XO.LCG01.0111","price":10.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/9867\/0353\/files\/R6.png?v=1787855087"},{"product_id":"chase-laser-protective-windows-single-spec","title":"Chase Laser Protective Windows | Compatible Fiber-Laser Heads (18×2–37×7)","description":"\u003ch2\u003eChase Laser Protective Windows — Compatible with Major Fiber Laser Heads\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eChase Laser\u003c\/strong\u003e branded protective windows for fiber-laser cutting heads. Engineered for high transmission and durability in 1030–1090 nm applications. Choose the exact specification from the list below. Each piece is individually packed to ensure clean handling and safe transport.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Chase Laser (our in-house brand)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Works with mainstream fiber-laser heads from brands such as Raytools, WSX, BOCI, Precitec, Bystronic, HSG, etc. (for reference\/compatibility only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptics:\u003c\/strong\u003e High-transmission fused silica with hard AR coating (1 µm band)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Each window sealed and protected to avoid contamination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 kg per piece (non-taxable on this store)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable specifications (ordered list)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStandard:\u003c\/strong\u003e 18×2，20×2，20×3，21.5×2，22.35×4，24.9×1.5，25.4×4，27.9×4.1，30×4，30×5，34×5，37×5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-power (37×7):\u003c\/strong\u003e 6 kW，8 kW，12 kW，15 kW，20 kW，30 kW\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eHow to choose\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch size:\u003c\/strong\u003e Diameter × thickness must follow your head’s specification (e.g., 30×5 or 37×7).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower matching:\u003c\/strong\u003e For high-power heads, select the 37×7 variant with the corresponding kW rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplace on time:\u003c\/strong\u003e A contaminated or scratched window will rapidly damage the focusing optics.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eInstallation \u0026amp; cleaning\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperate in a clean area; wear powder-free gloves and a mask.\u003c\/li\u003e\n\u003cli\u003eBlow dust with filtered oil-free air from center to edge; avoid touching surfaces.\u003c\/li\u003e\n\u003cli\u003eSingle drag-wipe with lint-free tissue lightly wetted with 99.9% IPA; do not scrub.\u003c\/li\u003e\n\u003cli\u003eEnsure seals\/O-rings and seats are clean before closing the cartridge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 12px; color: #6b7280;\"\u003e*All brand names are trademarks of their respective owners. “Compatible with” indicates fit\/function reference only.\u003c\/p\u003e","brand":"Chase Laser","offers":[{"title":"18*2","offer_id":52580279845137,"sku":"CL-PW-18x2-Standard","price":2.85,"currency_code":"USD","in_stock":true},{"title":"20*2","offer_id":52580279877905,"sku":"CL-PW-20x2-Standard","price":2.85,"currency_code":"USD","in_stock":true},{"title":"20*3","offer_id":52580279910673,"sku":"CL-PW-20x3-Standard","price":2.85,"currency_code":"USD","in_stock":true},{"title":"21.5*2","offer_id":52580279943441,"sku":"CL-PW-21_5x2-Standard","price":24.21,"currency_code":"USD","in_stock":true},{"title":"22.35*4","offer_id":52580279976209,"sku":"CL-PW-22_35x4-Standard","price":24.21,"currency_code":"USD","in_stock":true},{"title":"24.9*1.5","offer_id":52580280008977,"sku":"CL-PW-24_9x1_5-Standard","price":3.95,"currency_code":"USD","in_stock":true},{"title":"25.4*4","offer_id":52580280041745,"sku":"CL-PW-25_4x4-Standard","price":3.86,"currency_code":"USD","in_stock":true},{"title":"27.9*4.1","offer_id":52580280074513,"sku":"CL-PW-27_9x4_1-Standard","price":3.86,"currency_code":"USD","in_stock":true},{"title":"30*4","offer_id":52580280107281,"sku":"CL-PW-30x4-Standard","price":3.05,"currency_code":"USD","in_stock":true},{"title":"30*5","offer_id":52580280140049,"sku":"CL-PW-30x5-Standard","price":3.05,"currency_code":"USD","in_stock":true},{"title":"34*5","offer_id":52580280172817,"sku":"CL-PW-34x5-Standard","price":14.21,"currency_code":"USD","in_stock":true},{"title":"37*5","offer_id":52580280205585,"sku":"CL-PW-37x5-Standard","price":5.62,"currency_code":"USD","in_stock":true},{"title":"37*7-6kw","offer_id":52580280238353,"sku":"CL-PW-37x7-6KW","price":5.85,"currency_code":"USD","in_stock":true},{"title":"37*7-8kw","offer_id":52580280271121,"sku":"CL-PW-37x7-8KW","price":6.92,"currency_code":"USD","in_stock":true},{"title":"37*7-12kw","offer_id":52580280303889,"sku":"CL-PW-37x7-12KW","price":7.6,"currency_code":"USD","in_stock":true},{"title":"37*7-15kw","offer_id":52580280336657,"sku":"CL-PW-37x7-15KW","price":8.5,"currency_code":"USD","in_stock":true},{"title":"37*7-20kw","offer_id":52580280369425,"sku":"CL-PW-37x7-20KW","price":9.15,"currency_code":"USD","in_stock":true},{"title":"37*7-30kw","offer_id":52580280402193,"sku":"CL-PW-37x7-30KW","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/9867\/0353\/files\/Laserprotectionlenses.png?v=1760986475"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/9867\/0353\/collections\/Laser_Protective_Lenses.jpg?v=1788015095","url":"https:\/\/www.chaselaser.com\/en-it\/collections\/laser-protective-lenses.oembed","provider":"Chase Laser","version":"1.0","type":"link"}