{"product_id":"handheld-laser-welding-cleaning-optics-all-specs","title":"Handheld Laser Welding\/Cleaning Optics - Protective Windows, Focusing \u0026 Collimating Lenses","description":"\u003cdiv class=\"product-longdesc\" style=\"max-width:880px;margin:auto;line-height:1.65\"\u003e\n  \u003ch2\u003eHandheld Laser Welding\/Cleaning Optics — All Specifications (1 pc per variant)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    One product page for everything you need: \u003cstrong\u003eprotective windows\u003c\/strong\u003e, \u003cstrong\u003efocusing lenses\u003c\/strong\u003e,\n    \u003cstrong\u003ecollimating lenses\u003c\/strong\u003e and a \u003cstrong\u003ecleaning dust cap\u003c\/strong\u003e for handheld welding\/cleaning heads.\n    \u003cbr\u003e\u003cstrong\u003eEach variant is supplied as 1 pc (single piece)\u003c\/strong\u003e — no multi-pack in this listing.\n  \u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Handheld laser welding\/cleaning heads (25A\/26A series and compatible models)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Fused silica protective windows; AR-coated fused silica lenses\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWavelength:\u003c\/strong\u003e Optimized for 1064–1080 nm fiber-laser systems\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePacking:\u003c\/strong\u003e 1 pc per variant, cleanroom packed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaintenance tips:\u003c\/strong\u003e Replace windows regularly; keep lenses clean to maintain beam quality and gas protection\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eWhat’s included (model codes)\u003c\/h3\u003e\n  \u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%;border-collapse:collapse\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left\"\u003eType\u003c\/th\u003e\n        \u003cth style=\"text-align:left\"\u003eCodes\u003c\/th\u003e\n        \u003cth style=\"text-align:left\"\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eProtective Window\u003c\/td\u003e\n        \u003ctd\u003eD18T2, D20T2, D30T5; 25A-D30T3; 26A-D18T2\u003c\/td\u003e\n        \u003ctd\u003eConsumables; keep spare stock for stable protection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCollimating Lens\u003c\/td\u003e\n        \u003ctd\u003eD16T5F50, D16T5F60, D20T5F60; 25A-D30T4.5F75; 26A-D16T5F60\u003c\/td\u003e\n        \u003ctd\u003ePre-focus beam shaping; verify seat\/code before ordering\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eFocusing Lens\u003c\/td\u003e\n        \u003ctd\u003e\n          D20T4.5F150 \/ F200 \/ F400 \/ F600 \/ F800;\u003cbr\u003e\n          D20T3.5F400 \/ F600 \/ F800;\u003cbr\u003e\n          25A-D30F200, 25A-D30T3.5F250 \/ F300;\u003cbr\u003e\n          26A-D20T4.5F150 \/ F200\n        \u003c\/td\u003e\n        \u003ctd\u003eChoose focal length to match your process and standoff\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCleaning Dust Cap\u003c\/td\u003e\n        \u003ctd\u003eDC34\u003c\/td\u003e\n        \u003ctd\u003eProtects the nozzle\/optics during cleaning operations\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eHow to choose\u003c\/h3\u003e\n  \u003col\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMatch the code\u003c\/strong\u003e to your original part (e.g., D18T2, D20T4.5F200). If your torch is 25A\/26A, select the variant with that prefix.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConfirm seat\/thread\u003c\/strong\u003e and optical path (collimating vs focusing) before purchasing.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePack size:\u003c\/strong\u003e This listing ships \u003cstrong\u003e1 pc per variant\u003c\/strong\u003e. Need bulk packs? Contact us.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch3\u003eCare \u0026amp; handling\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePower off and allow to cool before replacement; avoid touching optical surfaces.\u003c\/li\u003e\n    \u003cli\u003eUse clean nitrile gloves and lens paper; do not scratch AR coatings.\u003c\/li\u003e\n    \u003cli\u003eReplace when contamination cannot be removed or performance degrades.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"font-size:0.95em;color:#666;margin-top:12px\"\u003e\n    \u003cem\u003eNote:\u003c\/em\u003e Minor dimensional tolerances may exist across manufacturers. Please verify your head model and code before ordering.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Chase Laser","offers":[{"title":"Protective Window D18T2 — 1 pc","offer_id":52505134366993,"sku":"OPT-PW-D18T2-1","price":2.81,"currency_code":"USD","in_stock":true},{"title":"Protective Window D30T5 — 1 pc","offer_id":52505134399761,"sku":"OPT-PW-D30T5-1","price":3.51,"currency_code":"USD","in_stock":true},{"title":"Protective Window D20T2 — 1 pc","offer_id":52505134432529,"sku":"OPT-PW-D20T2-1","price":2.81,"currency_code":"USD","in_stock":true},{"title":"Collimating Lens D16T5F60 — 1 pc","offer_id":52505134465297,"sku":"OPT-CL-D16T5F60-1","price":11.5,"currency_code":"USD","in_stock":true},{"title":"Collimating Lens D20T5F60 — 1 pc","offer_id":52505134498065,"sku":"OPT-CL-D20T5F60-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Collimating Lens D16T5F50 — 1 pc","offer_id":52505134530833,"sku":"OPT-CL-D16T5F50-1","price":11.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T4.5F150 — 1 pc","offer_id":52505134563601,"sku":"OPT-FL-D20T4.5F150-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T4.5F200 — 1 pc","offer_id":52505134596369,"sku":"OPT-FL-D20T4.5F200-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T4.5F400 — 1 pc","offer_id":52505134629137,"sku":"OPT-FL-D20T4.5F400-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T4.5F600 — 1 pc","offer_id":52505134661905,"sku":"OPT-FL-D20T4.5F600-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T4.5F800 — 1 pc","offer_id":52505134694673,"sku":"OPT-FL-D20T4.5F800-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T3.5F400 — 1 pc","offer_id":52505134727441,"sku":"OPT-FL-D20T3.5F400-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T3.5F600 — 1 pc","offer_id":52505134760209,"sku":"OPT-FL-D20T3.5F600-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Focusing Lens D20T3.5F800 — 1 pc","offer_id":52505134792977,"sku":"OPT-FL-D20T3.5F800-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"25A Protective Window D30T3 — 1 pc","offer_id":52505134825745,"sku":"OPT-25A-PW-D30T3-1","price":7.2,"currency_code":"USD","in_stock":true},{"title":"25A Collimating Lens D30T4.5F75 — 1 pc","offer_id":52505134858513,"sku":"OPT-25A-CL-D30T4.5F75-1","price":21.0,"currency_code":"USD","in_stock":true},{"title":"25A Focusing Lens D30F200 — 1 pc","offer_id":52505134891281,"sku":"OPT-25A-FL-D30F200-1","price":25.25,"currency_code":"USD","in_stock":true},{"title":"25A Focusing Lens D30T3.5F250 — 1 pc","offer_id":52505134924049,"sku":"OPT-25A-FL-D30T3.5F250-1","price":30.86,"currency_code":"USD","in_stock":true},{"title":"25A Focusing Lens D30T3.5F300 — 1 pc","offer_id":52505134956817,"sku":"OPT-25A-FL-D30T3.5F300-1","price":42.2,"currency_code":"USD","in_stock":true},{"title":"26A Protective Window D18T2 — 1 pc","offer_id":52505134989585,"sku":"OPT-26A-PW-D18T2-1","price":2.81,"currency_code":"USD","in_stock":true},{"title":"26A Collimating Lens D16T5F60 — 1 pc","offer_id":52505135022353,"sku":"OPT-26A-CL-D16T5F60-1","price":11.5,"currency_code":"USD","in_stock":true},{"title":"26A Focusing Lens D20T4.5F150 — 1 pc","offer_id":52505135055121,"sku":"OPT-26A-FL-D20T4.5F150-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"26A Focusing Lens D20T4.5F200 — 1 pc","offer_id":52505135087889,"sku":"OPT-26A-FL-D20T4.5F200-1","price":14.5,"currency_code":"USD","in_stock":true},{"title":"Cleaning Dust Cap DC34 — 1 pc","offer_id":52505135120657,"sku":"OPT-CLEAN-DC34-1","price":11.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/9867\/0353\/files\/1_f5231814-00c4-4c4b-944c-5e6639b25879.png?v=1760252276","url":"https:\/\/www.chaselaser.com\/en-mena\/products\/handheld-laser-welding-cleaning-optics-all-specs","provider":"Chase Laser","version":"1.0","type":"link"}