{"title":"Raytools BS12K Laser Head Parts","description":"\u003cp\u003eAftermarket consumables that fit the Raytools BS12K: nozzles, protective windows, ceramics and other wear parts, each matched to the Raytools part number it replaces.\u003c\/p\u003e","products":[{"product_id":"raytools-aftermarket-laser-ceramic-ring-nozzle-holder-single-5-10-packs","title":"Raytools Aftermarket Laser Ceramic Ring, Nozzle Holder, 1, 5 \u0026 10 Packs","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eCeramic nozzle holders (ceramic rings) for Raytools fiber laser cutting heads, in the five body sizes Raytools uses on its 2D and 3D heads: D32 M14, D28 M11, D21.4 M11, D21.4 M8 and D19.5 M8. Each is listed with its Raytools part number, exact dimensions and the heads it fits.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eThe ceramic ring insulates the nozzle from the head for capacitive height sensing and holds the nozzle in line with the beam. A cracked or dirty ring causes height sensing alarms.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eEvery size is sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAlumina ceramic body with threaded brass insert\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eNozzle holder and capacitive sensing insulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSizes\u003c\/td\u003e\n\u003ctd\u003eD32 M14 (120274100B), D28 M11 (120515099A), D19.5 M8 3D (120572008B), D21.4 M11 (120515092B), D21.4 M8 3D (120515093A), D41 M11 (120515089A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eRaytools cutting heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bd04k-laser-head-parts\" style=\"text-decoration:none\"\u003eBD04K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bd08k-laser-head-parts\" style=\"text-decoration:none\"\u003eBD08K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bm06k-laser-head-parts\" style=\"text-decoration:none\"\u003eBM06K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bm114-laser-head-parts\" style=\"text-decoration:none\"\u003eBM114\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bm115-laser-head-parts\" style=\"text-decoration:none\"\u003eBM115\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bmh109-laser-head-parts\" style=\"text-decoration:none\"\u003eBMH109\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bmh110-laser-head-parts\" style=\"text-decoration:none\"\u003eBMH110\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bmh111-laser-head-parts\" style=\"text-decoration:none\"\u003eBMH111\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bmh114-laser-head-parts\" style=\"text-decoration:none\"\u003eBMH114\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs06k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS06K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs12k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS12K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs15k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS15K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs20k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS20K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bt220-laser-head-parts\" style=\"text-decoration:none\"\u003eBT220\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bt240-laser-head-parts\" style=\"text-decoration:none\"\u003eBT240\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-gf101-laser-head-parts\" style=\"text-decoration:none\"\u003eGF101\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eHeads per Raytools' own ceramic table. Match the outer diameter and thread of your current ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eRaytools Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD32 M14 (120274100B)\u003c\/td\u003e\n\u003ctd\u003eD32 x H12 mm, M14 x 0.75\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120274100B\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2106-D32M1412027410)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBT240, BMH109, BMH110, BMH111, BMH114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD28 M11 (120515099A)\u003c\/td\u003e\n\u003ctd\u003eD28 x H12 mm, M11 x 0.75\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120515099A\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2106-D28M1112051509)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBT220, BM114, BM115, BS06K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD19.5 M8 3D (120572008B)\u003c\/td\u003e\n\u003ctd\u003eD19.5 x H12.4 mm, M8 x 0.75\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120572008B\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2106-D195M83D120572)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBT240, BMH109, BMH110, BMH111, BMH114, GF101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD21.4 M11 (120515092B)\u003c\/td\u003e\n\u003ctd\u003eD21.4 x H16.9 mm, M11 x 0.75\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120515092B\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2106-D214M111205150)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBM06K, BD04K, BD08K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD21.4 M8 3D (120515093A)\u003c\/td\u003e\n\u003ctd\u003eD21.4 x H12.9 mm, M8 x 0.75\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120515093A\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2106-D214M83D120515)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBD04K, BD08K, BS12K, BS15K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD41 M11 (120515089A)\u003c\/td\u003e\n\u003ctd\u003eD41 x H12.9 mm, M11 x 0.75\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120515089A\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2106-D41M1112051508)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBS12K, BS15K, BS20K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eAfter a head collision\u003c\/strong\u003e\u003cbr\u003eA crash into a tipped part or the sheet edge usually cracks the ceramic before anything else. A spare ring gets the machine cutting again in minutes.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eHeight sensing alarms\u003c\/strong\u003e\u003cbr\u003eErratic capacitive readings, height jumps or false collision alarms are frequently a cracked or dirty ceramic. Swap the ring before recalibrating the sensor.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003ePlanned maintenance\u003c\/strong\u003e\u003cbr\u003eInspect the ring at every nozzle change and replace it when chips, cracks or heat discolouration appear.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003e3D and tube heads\u003c\/strong\u003e\u003cbr\u003eThe D19.5 and D21.4 M8 rings suit Raytools 3D and tube cutting heads that run the small M8 nozzle.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eWhich ceramic do I need?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eMatch your current ring's outer diameter and thread, or its Raytools part number in the table. D32 M14 heads take the D32 nozzle; D28 M11 heads take the D28 nozzle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eAre these genuine Raytools ceramics?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. They are aftermarket rings made to the same dimensions. Raytools part numbers are listed so you can match your existing ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I fit a ceramic ring?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eScrew it in by hand until it seats, then fit the nozzle. Do not use tools or overtighten; ceramic cracks under excess torque.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eWhy does my sensor keep alarming?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the ceramic for cracks, spatter or a loose fit before recalibrating. A damaged ring changes the sensor reading.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eDo you ship worldwide?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eYes. Shipping options and costs for your country are shown at checkout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which ceramic do I need?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Match your current ring's outer diameter and thread, or its Raytools part number in the table. D32 M14 heads take the D32 nozzle; D28 M11 heads take the D28 nozzle.\"}}, {\"@type\": \"Question\", \"name\": \"Are these genuine Raytools ceramics?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. They are aftermarket rings made to the same dimensions. Raytools part numbers are listed so you can match your existing ring.\"}}, {\"@type\": \"Question\", \"name\": \"How do I fit a ceramic ring?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Screw it in by hand until it seats, then fit the nozzle. Do not use tools or overtighten; ceramic cracks under excess torque.\"}}, {\"@type\": \"Question\", \"name\": \"Why does my sensor keep alarming?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the ceramic for cracks, spatter or a loose fit before recalibrating. A damaged ring changes the sensor reading.\"}}, {\"@type\": \"Question\", \"name\": \"Do you ship worldwide?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Shipping options and costs for your country are shown at checkout.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"D32 M14 (120274100B) \/ 1 Pack","offer_id":67557073223980,"sku":"SPM-LAS-2106-D32M1412027410-P1","price":5.9,"currency_code":"USD","in_stock":true},{"title":"D32 M14 (120274100B) \/ 5 Pack","offer_id":67557073256748,"sku":"SPM-LAS-2106-D32M1412027410-P5","price":27.15,"currency_code":"USD","in_stock":true},{"title":"D32 M14 (120274100B) \/ 10 Pack","offer_id":67557073289516,"sku":"SPM-LAS-2106-D32M1412027410-P10","price":50.2,"currency_code":"USD","in_stock":true},{"title":"D28 M11 (120515099A) \/ 1 Pack","offer_id":67557073322284,"sku":"SPM-LAS-2106-D28M1112051509-P1","price":4.46,"currency_code":"USD","in_stock":true},{"title":"D28 M11 (120515099A) \/ 5 Pack","offer_id":67557073355052,"sku":"SPM-LAS-2106-D28M1112051509-P5","price":20.5,"currency_code":"USD","in_stock":true},{"title":"D28 M11 (120515099A) \/ 10 Pack","offer_id":67557073387820,"sku":"SPM-LAS-2106-D28M1112051509-P10","price":37.9,"currency_code":"USD","in_stock":true},{"title":"D19.5 M8 3D (120572008B) \/ 1 Pack","offer_id":67557073420588,"sku":"SPM-LAS-2106-D195M83D120572-P1","price":11.34,"currency_code":"USD","in_stock":true},{"title":"D19.5 M8 3D (120572008B) \/ 5 Pack","offer_id":67557073453356,"sku":"SPM-LAS-2106-D195M83D120572-P5","price":52.15,"currency_code":"USD","in_stock":true},{"title":"D19.5 M8 3D (120572008B) \/ 10 Pack","offer_id":67557073486124,"sku":"SPM-LAS-2106-D195M83D120572-P10","price":96.4,"currency_code":"USD","in_stock":true},{"title":"D21.4 M11 (120515092B) \/ 1 Pack","offer_id":67557073518892,"sku":"SPM-LAS-2106-D214M111205150-P1","price":5.38,"currency_code":"USD","in_stock":true},{"title":"D21.4 M8 3D (120515093A) \/ 1 Pack","offer_id":67557073551660,"sku":"SPM-LAS-2106-D214M83D120515-P1","price":12.48,"currency_code":"USD","in_stock":true},{"title":"D21.4 M8 3D (120515093A) \/ 5 Pack","offer_id":67557077418284,"sku":"SPM-LAS-2106-D214M83D120515-P5","price":57.4,"currency_code":"USD","in_stock":true},{"title":"D21.4 M8 3D (120515093A) \/ 10 Pack","offer_id":67557077451052,"sku":"SPM-LAS-2106-D214M83D120515-P10","price":106.1,"currency_code":"USD","in_stock":true},{"title":"D41 M11 (120515089A) \/ 1 Pack","offer_id":67557077483820,"sku":"SPM-LAS-2106-D41M1112051508-P1","price":62.28,"currency_code":"USD","in_stock":true},{"title":"D41 M11 (120515089A) \/ 5 Pack","offer_id":67557077516588,"sku":"SPM-LAS-2106-D41M1112051508-P5","price":286.5,"currency_code":"USD","in_stock":true},{"title":"D41 M11 (120515089A) \/ 10 Pack","offer_id":67557077549356,"sku":"SPM-LAS-2106-D41M1112051508-P10","price":529.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_1762eab3-f5e7-4fdb-8447-02240cd42d3d.jpg?v=1790894356"},{"product_id":"raytools-211lcg0086-aftermarket-protective-window-d24-9-x-1-5-mm-15-kw","title":"Raytools 211LCG0086 Aftermarket Protective Window, D24.9 x 1.5 mm, 15 kW","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket upper protective window for Raytools high power cutting heads. Replaces Raytools 211LCG0086, the 15 kW version of the D24.9 x 1.5 mm upper window.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eThe upper window sits between the collimating optics and the fiber connector side of the head, so it stays far cleaner than the lower window. When it does get marked, usually from contamination during a fiber or lens change, it scatters power before the beam reaches the focusing lens.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eIt fits the BS08K, BD08K, BM115 and BS12K heads that use the 15 kW upper window. The standard 211LCG0020 is the same size but is only rated to 4 kW, so do not swap the two on a high power head. Sold in packs of 1, 5 or 10.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eRaytools 211LCG0086\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eSize\u003c\/td\u003e\n\u003ctd\u003eD24.9 x 1.5 mm, 15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003eUp to 15 kW (Raytools rating). The supplied window is rated to 30 kW.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated both faces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1064 nm fiber lasers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003ePack Options\u003c\/td\u003e\n\u003ctd\u003e1 pack, 5 pack, 10 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eRaytools heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs08k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS08K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bd08k-laser-head-parts\" style=\"text-decoration:none\"\u003eBD08K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bm115-laser-head-parts\" style=\"text-decoration:none\"\u003eBM115\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs12k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS12K\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eMatch the window size and part number in your head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eRaytools Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eD24.9 x 1.5 mm, 15 kW\u003c\/td\u003e\n\u003ctd\u003eD24.9 x 1.5 mm, 15 kW\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e211LCG0086\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2159)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBS08K, BD08K, BM115, BS12K\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRoutine window changes\u003c\/strong\u003e\u003cbr\u003eThe protective window is the most frequently replaced optic in a cutting head. Change it at the first sign of spatter, pitting or a burn mark. A contaminated window absorbs laser power, heats up and can crack.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eProtecting the focusing lens\u003c\/strong\u003e\u003cbr\u003eThe window sits between the focusing lens and the cut. Keeping it clean protects a lens that costs many times more and keeps the focal spot and cut width consistent.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eRecovering lost cutting power\u003c\/strong\u003e\u003cbr\u003eIf piercing slows, the kerf widens or the machine needs more power for the same plate, inspect the window before changing parameters. A dirty window is the most common cause.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eStocking for every head in the shop\u003c\/strong\u003e\u003cbr\u003eSingle windows for an urgent change, 5 packs for a machine running one shift, 10 packs at the lowest price per piece for busy production lines.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eCan I use this in place of 211LCG0020?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eYes. It is the same D24.9 x 1.5 mm size with a higher power rating, so it can replace the standard window. The standard window should not be used in a 15 kW head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right window?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the part number on the old window's packaging or in your parts list, or measure the diameter and thickness of the window you are replacing. Both must match the size shown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003e1 pack, 5 pack or 10 pack?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eIt is the same window in each. The 10 pack has the lowest price per window and suits machines that change windows every shift.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should I handle it?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eHold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical grade alcohol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eDo you ship worldwide?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eYes. Shipping options and costs for your country are shown at checkout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Can I use this in place of 211LCG0020?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. It is the same D24.9 x 1.5 mm size with a higher power rating, so it can replace the standard window. The standard window should not be used in a 15 kW head.\"}}, {\"@type\": \"Question\", \"name\": \"How do I know this is the right window?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the part number on the old window's packaging or in your parts list, or measure the diameter and thickness of the window you are replacing. Both must match the size shown.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"1 pack, 5 pack or 10 pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is the same window in each. The 10 pack has the lowest price per window and suits machines that change windows every shift.\"}}, {\"@type\": \"Question\", \"name\": \"How should I handle it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical grade alcohol.\"}}, {\"@type\": \"Question\", \"name\": \"Do you ship worldwide?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Shipping options and costs for your country are shown at checkout.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"1 Pack","offer_id":67557800313132,"sku":"SPM-LAS-2159-P1","price":7.24,"currency_code":"USD","in_stock":true},{"title":"5 Pack","offer_id":67557800345900,"sku":"SPM-LAS-2159-P5","price":33.5,"currency_code":"USD","in_stock":true},{"title":"10 Pack","offer_id":67557800378668,"sku":"SPM-LAS-2159-P10","price":61.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_8d7e1a34-899a-4b7b-a1b7-5dff24d5f9a1.jpg?v=1790912576"},{"product_id":"raytools-bs12k-aftermarket-collimating-focusing-lens-assembly-d37-120bs5800a-120bs5900a","title":"Raytools BS12K Aftermarket Collimating \u0026 Focusing Lens Assembly, D37, 120BS5800A \/ 120BS5900A","description":"\u003cdiv style=\"font-family:Roboto,sans-serif;color:#1a1a1a;line-height:1.6\"\u003e\n\u003cstyle\u003e@import url('https:\/\/fonts.googleapis.com\/css2?family=Roboto+Condensed:wght@700\u0026family=Roboto:wght@400;700;900\u0026display=swap');.spm-c{border:1px solid #d1d1d1;background:#fff;margin-bottom:25px;overflow:hidden}.spm-h{padding:15px 20px;background:#ffce02;border-bottom:1px solid #d1d1d1;font-weight:900;text-transform:uppercase;font-size:16px;color:#000;letter-spacing:.05em;font-family:'Roboto Condensed',sans-serif}.spm-t{width:100%;border-collapse:collapse;font-size:15px}.spm-t th{padding:12px 10px;text-align:left;background:#f4f4f4;font-size:12px;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid #d1d1d1;color:#000}.spm-t td{padding:11px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.spmL{font-weight:700;color:#333;background:#fcfcfc;width:38%}.spm-sub{display:block;color:#777;font-size:12.5px;margin-top:2px}.spm-chip{display:inline-block;margin:0 8px 8px 0;padding:6px 12px;border:1px solid #d1d1d1;background:#fcfcfc;font-size:14px;font-weight:700;color:#000}.spm-h2{font-family:'Roboto Condensed',sans-serif;font-size:24px;font-weight:900;color:#000;text-transform:uppercase;margin:40px 0 20px;letter-spacing:.05em;border-bottom:3px solid #ffce02;padding-bottom:15px}.spm-p{font-size:16px;line-height:1.8;margin:0 0 18px}@media(max-width:700px){.spmL{width:auto}}\u003c\/style\u003e\n\u003cp class=\"spm-p\"\u003eAftermarket collimating and focusing lens assemblies for the Raytools BS12K cutting head. Choose the one you need from the list: the collimating assembly, Raytools 120BS5800A (D37 mm, F100 mm, 12 kW), or the focusing assembly, Raytools 120BS5900A (D37 mm, F220 mm, 12 to 15 kW). Each is the lens holder with its lens fitted.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eThe collimator sits directly under the fiber connector and turns the diverging beam from the fiber into a parallel beam. The focusing lens below it brings that beam to the focal spot under the nozzle. The long F220 focal length gives the larger spot and longer depth of focus the BS12K and BS15K use for thick plate.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003eA burned collimator costs power on every job. A damaged focusing lens shows as slow piercing, a wide or tapered kerf and dross that will not tune out. Replace the assembly that is damaged; the two are sold separately so you only buy what you need. The focusing assembly also fits the BS15K.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eTechnical Properties \u0026amp; Sizes\u003c\/h2\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"spm-t\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eCollimating Assembly\u003c\/td\u003e\n\u003ctd\u003eRaytools 120BS5800A: D37 mm, F100 mm, 12 kW, fits BS12K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eFocusing Assembly\u003c\/td\u003e\n\u003ctd\u003eRaytools 120BS5900A: D37 mm, F220 mm, 12 to 15 kW, fits BS12K, BS15K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eLens Diameter\u003c\/td\u003e\n\u003ctd\u003e37 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eContents\u003c\/td\u003e\n\u003ctd\u003eLens holder with the lens fitted, one assembly per order line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eOptics\u003c\/td\u003e\n\u003ctd\u003eFused silica, AR coated for 1064 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"padding:20px\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;color:#333\"\u003eRaytools cutting heads\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs12k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS12K\u003c\/a\u003e\u003ca class=\"spm-chip\" href=\"\/collections\/raytools-bs15k-laser-head-parts\" style=\"text-decoration:none\"\u003eBS15K\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 18px\"\u003eCollimating 120BS5800A: BS12K. Focusing 120BS5900A: BS12K and BS15K. Match the kit number on your current holder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spm-c\"\u003e\n\u003cdiv class=\"spm-h\"\u003eFind Your Size by Part Number\u003c\/div\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable class=\"spm-t\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eRaytools Part No.\u003cspan class=\"spm-sub\"\u003e(SPM Part No.)\u003c\/span\u003e\n\u003c\/th\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eCollimating D37 F100 (120BS5800A)\u003c\/td\u003e\n\u003ctd\u003eD37 mm, F100 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120BS5800A\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2166-5800A)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBS12K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spmL\"\u003eFocusing D37 F220 (120BS5900A)\u003c\/td\u003e\n\u003ctd\u003eD37 mm, F220 mm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e120BS5900A\u003c\/strong\u003e\u003cspan class=\"spm-sub\"\u003e(SPM-LAS-2166-5900A)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBS12K, BS15K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"spm-h2\"\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eBurned or contaminated collimator\u003c\/strong\u003e\u003cbr\u003eContamination from a fiber change or a failed upper window reaches the collimating lens first. A burned collimator costs power on every cut. Replace the assembly and check the upper window.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003ePower loss with a clean lower window\u003c\/strong\u003e\u003cbr\u003eIf the lower protective window and focusing lens are clean and the machine still needs more power for the same plate, inspect the collimator.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eBurned or pitted focusing lens\u003c\/strong\u003e\u003cbr\u003eSlow piercing, a wide kerf and dross that will not tune out usually point to the focusing lens. Replace the assembly and fit a new protective window at the same time.\u003c\/p\u003e\n\u003cp class=\"spm-p\"\u003e\u003cstrong\u003eFocal shift during long cuts\u003c\/strong\u003e\u003cbr\u003eA contaminated lens absorbs power and heats up, so the focus moves as the job runs. A new assembly cures it where cleaning will not.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003ePrice Beat Guarantee\u003c\/h2\u003e\n\u003cp class=\"spm-p\"\u003eFound this part cheaper elsewhere? Send us the listing and we will beat it under our \u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"color:#000;text-decoration:underline\"\u003ePrice Beat Guarantee\u003c\/a\u003e. Every order is also covered by our \u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"color:#000;text-decoration:underline\"\u003e30 day money back guarantee\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 class=\"spm-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eWhich one do I need?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eThe collimating assembly (120BS5800A, F100) is the upper lens under the fiber connector. The focusing assembly (120BS5900A, F220) is the lower lens above the protective window. Check the kit number on the holder you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eIs it a genuine Raytools part?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eNo. It is an aftermarket lens assembly made to the same diameter, focal length and mounting as the Raytools kit. The Raytools number is shown so you can match the assembly you are replacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow do I know this is the right assembly?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eCheck the kit number on your current holder or in the head's parts list, and confirm the lens diameter and focal length. Collimating and focusing assemblies are not interchangeable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eHow should it be fitted?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eFit it in a clean area with clean gloves, handling the holder only. Fingerprints on a lens burn into the coating under laser power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:22px;padding:15px;background:#f9f9f9;border-left:4px solid #ffce02\"\u003e\n\u003ch4 style=\"margin:0 0 8px;font-size:15px;font-weight:700\"\u003eDo you ship worldwide?\u003c\/h4\u003e\n\u003cp style=\"margin:0;font-size:14px;line-height:1.7;color:#333\"\u003eYes. Shipping options and costs for your country are shown at checkout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d1d1d1;border:1px solid #d1d1d1;margin-bottom:20px\" class=\"spm-trust\"\u003e\n\u003ca href=\"\/pages\/30-day-money-back-guarante\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm-2 16l-4-4 1.41-1.41L10 14.17l6.59-6.59L18 9l-8 8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003e30-Day Money Back Guarantee\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/delivery-information\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2v1.93zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003eWorldwide Delivery\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/pages\/find-it-cheaper-we-will-beat-it-by-5\" style=\"background:#fff;padding:40px 15px;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;color:#1a1a1a\"\u003e\u003csvg style=\"width:32px;height:32px;margin-bottom:15px;fill:#ffce02\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M21.41 11.58l-9-9C12.05 2.22 11.55 2 11 2H4c-1.1 0-2 .9-2 2v7c0 .55.22 1.05.59 1.42l9 9c.36.36.86.58 1.41.58.55 0 1.05-.22 1.41-.59l7-7c.37-.36.59-.86.59-1.41 0-.55-.23-1.06-.59-1.42zM5.5 8.25c-.69 0-1.25-.56-1.25-1.25s.56-1.25 1.25-1.25 1.25.56 1.25 1.25-.56 1.25-1.25 1.25z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan style=\"font-family:'Roboto Condensed',sans-serif;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:0.1em\"\u003ePrice Beat Guarantee\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which one do I need?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The collimating assembly (120BS5800A, F100) is the upper lens under the fiber connector. The focusing assembly (120BS5900A, F220) is the lower lens above the protective window. Check the kit number on the holder you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"Is it a genuine Raytools part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is an aftermarket lens assembly made to the same diameter, focal length and mounting as the Raytools kit. The Raytools number is shown so you can match the assembly you are replacing.\"}}, {\"@type\": \"Question\", \"name\": \"How do I know this is the right assembly?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Check the kit number on your current holder or in the head's parts list, and confirm the lens diameter and focal length. Collimating and focusing assemblies are not interchangeable.\"}}, {\"@type\": \"Question\", \"name\": \"How should it be fitted?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Fit it in a clean area with clean gloves, handling the holder only. Fingerprints on a lens burn into the coating under laser power.\"}}, {\"@type\": \"Question\", \"name\": \"Do you ship worldwide?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Shipping options and costs for your country are shown at checkout.\"}}]}]}\u003c\/script\u003e","brand":"Spare Part Mart","offers":[{"title":"Collimating D37 F100 (120BS5800A)","offer_id":67557818663212,"sku":"SPM-LAS-2166-5800A","price":367.69,"currency_code":"USD","in_stock":true},{"title":"Focusing D37 F220 (120BS5900A)","offer_id":67557818695980,"sku":"SPM-LAS-2166-5900A","price":366.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/9152\/6700\/files\/spm_0_68ad5a8b-a4d1-4b1b-946a-9c51fe5a8a79.jpg?v=1790925043"}],"url":"https:\/\/sparepartmart.co\/collections\/raytools-bs12k-laser-head-parts.oembed","provider":"Spare Part Mart","version":"1.0","type":"link"}