{"title":"BOCHU BOCI Upper Protective Lens","description":"\u003cp\u003eBOCHU BOCI upper protective lenses are grouped here for the upper protective-window position in compatible BLT fiber laser cutting heads. Use the exact product dimensions, part number and stated variant limit shown on the product page; an upper lens is position-specific and should not be treated as interchangeable with a second-upper or lower lens. If the required position is second-upper, see \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-2nd-upper-protective-lens\"\u003e2nd-Upper Protective Lens\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"bochu-boci-original-upper-protective-lens-d25-4t4-0-60kw","title":"BOCHU BOCI Upper Protective lens D25.4×4（8-60KW）","description":"\u003cp\u003eOriginal BOCHU BOCI D25.4×4 upper protective lenses for the listed BLT cutting-head configurations. This page includes six distinct configurations rated up to 8, 15, 20, 30, 40 and 60 kW. Confirm the upper position, part number and BLT model together before selecting a variant.\u003c\/p\u003e\u003ch2\u003ePart Numbers and Matching Models\u003c\/h2\u003e\r\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" width=\"1052\" border=\"0\" style=\"border-collapse: collapse; width: 577px; height: 346.656px;\"\u003e\r\n\u003ccolgroup\u003e \u003ccol width=\"467\" style=\"width: 229.5px;\"\u003e \u003ccol width=\"585\" style=\"width: 346.5px;\"\u003e \u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr style=\"height: 52px;\"\u003e\r\n\u003ctd height=\"52\" width=\"467\" style=\"height: 52px; width: 350.4pt;\" class=\"et4\"\u003ePART NUMBER\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.1pt; height: 52px;\" class=\"et4\"\u003eMATCHING MODEL\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 52px;\"\u003e\r\n\u003ctd height=\"52\" style=\"height: 52px;\" class=\"et8\"\u003eD25.4×4-2H（DP.V.P0045AA） 8kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.1pt; height: 52px;\" class=\"et11\"\u003eBLT310、BLT310T、BLT421S、BLT421TS、BLT510、BLT520\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 52px;\"\u003e\r\n\u003ctd height=\"52\" style=\"height: 52px;\" class=\"et8\"\u003eD25.4×4-4（DP.V.P0013AA）≤15kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.1pt; height: 52px;\" class=\"et12\"\u003eBLT442、BLT442T、BLT442P、BLT520H、BLT540H、BLT642H、BLT840H、BLT643H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 52px;\"\u003e\r\n\u003ctd height=\"52\" style=\"height: 52px;\" class=\"et8\"\u003eD25.4×4-6（DP.V.P0014AA）≤20kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.1pt; height: 52px;\" class=\"et12\"\u003eBLT462、BLT462T、BLT560H、BLT662H、BLT662MA、BLT860H、BLT462P、BLT663H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 48px;\"\u003e\r\n\u003ctd height=\"48\" style=\"height: 48px;\" class=\"et8\"\u003eD25.4×4-8（DP.V.P0015AA）≤30kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.1pt; height: 48px;\" class=\"et12\"\u003eBLT482、BLT482P、BLT682H、BLT682MA、BLT683H、BLT980MA\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 49.3281px;\"\u003e\r\n\u003ctd height=\"49\" style=\"height: 49.3281px;\" class=\"et8\"\u003eD25.4×4-10（DP.V.P0019AA）≤40kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.1pt; height: 49.3281px;\" class=\"et12\"\u003eBLT4102P、BLT6102H、BLT4102、BLT9100MA、BLT6102MA、BLT6103H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 41.3281px;\"\u003e\r\n\u003ctd height=\"41\" style=\"height: 41.3281px;\" class=\"et8\"\u003eD25.4×4-12（DP.V.P0036AA）≤60kw\u003c\/td\u003e\r\n\u003ctd style=\"height: 41.3281px;\" class=\"et8\"\u003eBLT4122、BLT9120MA\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ch2\u003eHow to Select the Correct Variant\u003c\/h2\u003e\u003cp\u003eConfirm the upper position, D25.4×4 size, original part number and BLT model. Do not treat the listed ratings as one continuous applicability range.\u003c\/p\u003e\u003ch2\u003eWhy Correct Selection Matters\u003c\/h2\u003e\u003cp\u003eDP.V.P0045AA also appears in a second-upper context. Position, part number and model must be used together.\u003c\/p\u003e\u003ch2\u003eWhy Buy From BOCHU.store\u003c\/h2\u003e\u003cp\u003eThe listed upper-position mappings are organized for verification before ordering. Use the package label, model and installation position if confirmation is needed.\u003c\/p\u003e\u003ch2\u003eQuick Answers\u003c\/h2\u003e\u003ch3\u003eIs every D25.4×4 lens upper?\u003c\/h3\u003e\u003cp\u003eNo. Confirm the optical position.\u003c\/p\u003e\u003ch3\u003eDoes DP.V.P0045AA always mean upper?\u003c\/h3\u003e\u003cp\u003eNo. Confirm position, part number and model together.\u003c\/p\u003e\u003ch3\u003eWhat evidence helps?\u003c\/h3\u003e\u003cp\u003eUse the label, model and installation position.\u003c\/p\u003e\u003cp\u003eBrowse \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-upper-protective-lens\" title=\"BOCHU BOCI Upper Protective Lenses\"\u003eUpper Protective Lenses\u003c\/a\u003e. For position clarification, see \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-2nd-upper-protective-lens\" title=\"BOCHU BOCI 2nd-Upper Protective Lenses\"\u003e2nd-Upper Protective Lenses\u003c\/a\u003e.\u003c\/p\u003e","brand":"BOCHU","offers":[{"title":"D25.4×4-2H（DP.V.P0045AA）≤8KW","offer_id":42361977798692,"sku":null,"price":24.3,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-4（DP.V.P0013AA）≤15KW","offer_id":42361977831460,"sku":null,"price":46.3,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-6（DP.V.P0014AA）≤20KW","offer_id":42361977864228,"sku":null,"price":52.9,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-8（DP.V.P0015AA）≤30KW","offer_id":42361977896996,"sku":null,"price":57.4,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-10（DP.V.P0019AA）≤40KW","offer_id":42361977929764,"sku":null,"price":61.8,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-12（DP.V.P0036AA）≤60KW","offer_id":42361977962532,"sku":null,"price":66.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/files\/bochu-boci-upper-protective-lens-d25-4-8-60kw-559.webp?v=1785128641"},{"product_id":"bochu-boci-cutting-head-protective-lens-d21-5-2","title":"BOCHU BOCI Upper Protective Lens D21.5×2","description":"\u003cp\u003eOriginal BOCHU BOCI D21.5×2 upper protective lenses for the listed BLT cutting-head configurations. This page includes four distinct configurations. Confirm the upper position, original part number and matching BLT model before selecting a variant; use the listed power only as a cross-check.\u003c\/p\u003e\u003ch2\u003ePart Numbers and Matching Models\u003c\/h2\u003e\r\n\u003ctable style=\"border-collapse: collapse; width: 573px;\" border=\"0\" width=\"1052\" cellspacing=\"0\" cellpadding=\"0\"\u003e\r\n\u003ccolgroup\u003e \u003ccol style=\"width: 259.5px;\" width=\"467\"\u003e \u003ccol style=\"width: 312.5px;\" width=\"585\"\u003e \u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr style=\"height: 51.00pt;\"\u003e\r\n\u003ctd class=\"et4\" style=\"height: 51.00pt; width: 350.40pt;\" width=\"467\" height=\"68\"\u003ePART NUMBER\u003c\/td\u003e\r\n\u003ctd class=\"et4\" style=\"width: 439.10pt;\" width=\"585\"\u003eMATCHING MODEL\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 51.00pt;\"\u003e\r\n\u003ctd class=\"et8\" style=\"height: 51.00pt;\" height=\"68\"\u003eD21.5×2-4（P.S.B0041）\u003cspan style=\"mso-spacerun: yes;\"\u003e    \u003c\/span\u003e≤15kw\u003c\/td\u003e\r\n\u003ctd class=\"et11\" style=\"width: 439.10pt;\" width=\"585\"\u003eBLT420、BLT420S、BLT421、BLT421T、BLT440F、BLT441、BLT441T、BLT641、BLT641H(15KW)、BLT640\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 25.00pt;\"\u003e\r\n\u003ctd class=\"et8\" style=\"height: 25.00pt;\" height=\"33\"\u003eD21.5×2-6（DP.V.P0001AA） ≤20kw\u003c\/td\u003e\r\n\u003ctd class=\"et8\"\u003eBLT460F、BLT461、BLT461T、BLT661、BLT661H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 25.00pt;\"\u003e\r\n\u003ctd class=\"et8\" style=\"height: 25.00pt;\" height=\"33\"\u003eD21.5×2-8（DP.V.P0006AA） ≤30kw\u003c\/td\u003e\r\n\u003ctd class=\"et8\"\u003eBLT481、BLT681H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 25.00pt;\"\u003e\r\n\u003ctd class=\"et8\" style=\"height: 25.00pt;\" height=\"33\"\u003eD21.5×2-10（DP.V.P0010AA）≤40kw\u003c\/td\u003e\r\n\u003ctd class=\"et8\"\u003eBLT4101、BLT6101H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ch2\u003eHow to Select the Correct Variant\u003c\/h2\u003e\u003cp\u003eConfirm the upper position and D21.5×2 size, then match the original part number and BLT model. Power is a supporting cross-check, not the primary selection method.\u003c\/p\u003e\u003ch2\u003eWhy Correct Selection Matters\u003c\/h2\u003e\u003cp\u003eFour configurations share the same D21.5×2 dimensions. The same dimensions do not establish interchangeability.\u003c\/p\u003e\u003ch2\u003eWhy Buy From BOCHU.store\u003c\/h2\u003e\u003cp\u003eThe four listed part-number and BLT model groups are shown together for verification before ordering. If the original part number is unclear, use the package label or cutting-head nameplate for confirmation.\u003c\/p\u003e\u003ch2\u003eQuick Answers\u003c\/h2\u003e\u003ch3\u003eAre all D21.5×2 lenses interchangeable?\u003c\/h3\u003e\u003cp\u003eNo. Match the part number and model.\u003c\/p\u003e\u003ch3\u003eShould I choose by power?\u003c\/h3\u003e\u003cp\u003eNo. Use the listed power only as a cross-check.\u003c\/p\u003e\u003ch3\u003eWhat if I cannot identify the original part number?\u003c\/h3\u003e\u003cp\u003eSend a clear photo of the package label or cutting-head nameplate for confirmation.\u003c\/p\u003e\u003cp\u003eBrowse \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-upper-protective-lens\" title=\"BOCHU BOCI Upper Protective Lenses\"\u003eUpper Protective Lenses\u003c\/a\u003e.\u003c\/p\u003e","brand":"BOCHU","offers":[{"title":"D21.5×2-4（P.S.B0041）    ≤15kw","offer_id":42389166948388,"sku":null,"price":46.3,"currency_code":"USD","in_stock":true},{"title":"D21.5×2-6（DP.V.P0001AA） ≤20kw","offer_id":42389166981156,"sku":null,"price":52.9,"currency_code":"USD","in_stock":true},{"title":"D21.5×2-8（DP.V.P0006AA） ≤30kw","offer_id":42389167013924,"sku":null,"price":57.4,"currency_code":"USD","in_stock":true},{"title":"D21.5×2-10（DP.V.P0010AA）≤40kw","offer_id":42389167046692,"sku":null,"price":61.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/files\/bochu-boci-upper-protective-lens-d21-5-2-640.webp?v=1785128384"},{"product_id":"bochu-boci-blt-cutting-head-upper-protective-lens-d36-0-5","title":"BOCHU BOCI Upper Protective Lens D36×5","description":"\u003cp\u003eOriginal BOCHU BOCI D36×5 upper protective lenses for the listed BLT cutting-head configurations. This page includes four distinct BOCHU variants, each identified by its original part number and matching BLT model. Confirm the upper protective-lens position, part number and cutting-head model before selecting a variant.\u003c\/p\u003e\r\n\u003ch2\u003ePart Numbers and Matching Models\u003c\/h2\u003e\r\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" width=\"1612\" border=\"0\" style=\"border-collapse: collapse; width: 533px; height: 158.844px;\"\u003e\r\n\u003ccolgroup\u003e \u003ccol width=\"529\" style=\"width: 291px;\"\u003e \u003ccol width=\"344\" style=\"width: 241px;\"\u003e \u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr style=\"height: 20.5938px;\"\u003e\r\n\u003cth class=\"last:pe-10\"\u003eLens \/ Part Number \/ Power\u003c\/th\u003e\r\n\u003ctd style=\"width: 258pt;\"\u003e\u003cstrong\u003eMatching Model\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 35.3125px;\"\u003e\r\n\u003ctd height=\"33\" width=\"529\" style=\"width: 396.75pt;\" class=\"et3\"\u003eD36×5-12（DP.V.P0022AA）≤60kw\u003c\/td\u003e\r\n\u003ctd width=\"344\" style=\"width: 258pt;\" class=\"et3\"\u003eBLT6120H\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 34.3125px;\"\u003e\r\n\u003ctd height=\"33\" class=\"et3\"\u003eD36×5-14（DP.V.P0025AA）≤80kw\u003c\/td\u003e\r\n\u003ctd class=\"et3\"\u003eBLTA140M\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 34.3125px;\"\u003e\r\n\u003ctd height=\"33\" class=\"et3\"\u003eD36×5-16（DP.V.P0030AA）≤100kw\u003c\/td\u003e\r\n\u003ctd class=\"et3\"\u003eBLTA160M\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 34.3125px;\"\u003e\r\n\u003ctd height=\"33\" class=\"et3\"\u003eD36×5-18（DP.V.P0032AA）≤120kw\u003c\/td\u003e\r\n\u003ctd class=\"et3\"\u003eBLTA180M\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003ch2\u003eHow to Select the Correct Variant\u003c\/h2\u003e\r\n\u003cp\u003eConfirm the upper protective-lens position and D36×5 size first, then match the original BOCHU part number and BLT cutting-head model. Use the listed power configuration only as a cross-check. The four D36×5 options are separate configurations and should not be selected by size or power alone.\u003c\/p\u003e\r\n\u003ch2\u003eWhy Correct Selection Matters\u003c\/h2\u003e\r\n\u003cp\u003eThe four variants share the same D36×5 dimensions but use different BOCHU part numbers and matching BLT models. A lens with the correct dimensions can still be the wrong replacement if the part number or cutting-head configuration does not match.\u003c\/p\u003e\r\n\u003ch2\u003eWhy Buy From BOCHU.store\u003c\/h2\u003e\r\n\u003cp\u003eOriginal BOCHU BOCI D36×5 upper protective lenses are organized by part number, matching BLT model and listed power configuration so the replacement can be verified before ordering. If the original part number is unclear, use the package label or cutting-head nameplate for confirmation.\u003c\/p\u003e\r\n\u003ch2\u003eQuick Answers\u003c\/h2\u003e\r\n\u003ch3\u003eWhich D36×5 variant do I need?\u003c\/h3\u003e\r\n\u003cp\u003eMatch the original BOCHU part number and BLT cutting-head model first, then use the listed power configuration as a cross-check.\u003c\/p\u003e\r\n\u003ch3\u003eCan I select the lens by D36×5 size alone?\u003c\/h3\u003e\r\n\u003cp\u003eNo. This page includes four different D36×5 configurations with different BOCHU part numbers and matching models.\u003c\/p\u003e\r\n\u003ch3\u003eWhat if I cannot identify the original part number?\u003c\/h3\u003e\r\n\u003cp\u003eSend a clear photo of the package label or cutting-head nameplate for confirmation.\u003c\/p\u003e\r\n\u003cp\u003eFor other BOCHU BOCI upper protective lens sizes and configurations, browse our \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-upper-protective-lens\" title=\"BOCHU BOCI Upper Protective Lenses\"\u003eUpper Protective Lenses\u003c\/a\u003e.\u003c\/p\u003e","brand":"BOCHU","offers":[{"title":"D36×5-12（DP.V.P0022AA）≤60kw","offer_id":42407955431460,"sku":null,"price":66.2,"currency_code":"USD","in_stock":true},{"title":"D36×5-14（DP.V.P0025AA）≤80kw","offer_id":42407955464228,"sku":null,"price":83.8,"currency_code":"USD","in_stock":true},{"title":"D36×5-16（DP.V.P0030AA）≤100kw","offer_id":42407955496996,"sku":null,"price":105.9,"currency_code":"USD","in_stock":true},{"title":"D36×5-18（DP.V.P0032AA）≤120kw","offer_id":42407955529764,"sku":null,"price":105.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/files\/bochu-boci-upper-protective-lens-d36-5-720.webp?v=1785128372"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/collections\/BOCHU_upper_protective_lens_b5e51be1-9bd4-4ec7-88d8-b7491818bb6b.jpg?v=1785128360","url":"https:\/\/www.bochu.store\/en-sa\/collections\/bochu-boci-laser-upper-protective-lens.oembed","provider":"BOCHU Online Store","version":"1.0","type":"link"}