{"title":"BOCHU BOCI Laser 2nd-Upper Protective Lens","description":"\u003cp\u003eBOCHU BOCI 2nd-upper protective lenses are grouped here for the second-upper protective-window position in compatible BLT fiber laser cutting heads. Confirm the exact dimensions, part number and stated variant limit on the product page. This installation position is distinct from the standard upper and lower protective-window positions. For the standard upper position, see \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-upper-protective-lens\"\u003eUpper Protective Lens\u003c\/a\u003e; for lower-window products, see \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-lower-protective-lens\"\u003eLower Protective Lens\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"bochu-boci-blt-series-2nd-upper-protective-lens-d25-4-4","title":"BOCHU BOCI 2nd-Upper Protective Lens D25.4×4","description":"\u003cp\u003eOriginal BOCHU BOCI D25.4×4 second-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. The second-upper position is a separate optical position; confirm it 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: 576px;\"\u003e\r\n\u003ccolgroup\u003e \u003ccol width=\"467\" style=\"width: 229px;\"\u003e \u003ccol width=\"585\" style=\"width: 346px;\"\u003e \u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr style=\"height: 45.00pt;\"\u003e\r\n\u003ctd height=\"60\" width=\"467\" style=\"height: 45.00pt; width: 350.40pt;\" class=\"et4\"\u003ePART NUMBER\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.10pt;\" class=\"et4\"\u003eMATCHING MODEL\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 27.00pt;\"\u003e\r\n\u003ctd height=\"36\" style=\"height: 27.00pt;\" class=\"et8\"\u003eD25.4×4-2H（DP.V.P0045AA）≤8kw\u003c\/td\u003e\r\n\u003ctd class=\"et8\"\u003eBLT421S、BLT421TS、BLT510、BLT520\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 76.00pt;\"\u003e\r\n\u003ctd height=\"101\" style=\"height: 76.00pt;\" class=\"et8\"\u003eD25.4×4-4（DP.V.P0003AA）≤15kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.10pt;\" class=\"et12\"\u003eBLT420、BLT420S、BLT440F、BLT421、BLT441、BLT421T、BLT441T、BLT520H、BLT540H、BLT640、BLT641、BLT641H(15KW)、BLT642H、BLT643H、BLT442、BLT442T、BLT442P\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 74.00pt;\"\u003e\r\n\u003ctd height=\"98\" style=\"height: 74.00pt;\" class=\"et8\"\u003eD25.4×4-6（DP.V.P0002AA）≤20kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.10pt;\" class=\"et12\"\u003eBLT460F、BLT461、BLT462、BLT661、BLT661H(Including BLT641H(20KW))、BLT662H、BLT663H、BLT560H、BLT662MA、BLT461T、BLT462P、BLT462T\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 36.00pt;\"\u003e\r\n\u003ctd height=\"48\" style=\"height: 36.00pt;\" class=\"et8\"\u003eD25.4×4-8（DP.V.P0007AA）≤30kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.10pt;\" class=\"et13\"\u003eBLT481、BLT681H、BLT682H、BLT683H、BLT482、BLT682MA、BLT482P、BLT980MA\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 38.00pt;\"\u003e\r\n\u003ctd height=\"50\" style=\"height: 38.00pt;\" class=\"et8\"\u003eD25.4×4-10（DP.V.P0011AA）≤40kw\u003c\/td\u003e\r\n\u003ctd width=\"585\" style=\"width: 439.10pt;\" class=\"et12\"\u003eBLT4101、BLT6101H、BLT6102H、BLT6103H、BLT4102、BLT6102MA、BLT4102P、BLT9100MA\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 25.00pt;\"\u003e\r\n\u003ctd height=\"33\" style=\"height: 25.00pt;\" class=\"et8\"\u003eD25.4×4-12（DP.V.P0037AA）≤60kw\u003c\/td\u003e\r\n\u003ctd 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 second-upper position first, then match D25.4×4, the original part number and BLT model. Listed power is a cross-check only.\u003c\/p\u003e\u003ch2\u003eWhy Correct Selection Matters\u003c\/h2\u003e\u003cp\u003eDo not assume interchangeability with a normal upper D25.4×4 lens because the dimensions match.\u003c\/p\u003e\u003ch2\u003eWhy Buy From BOCHU.store\u003c\/h2\u003e\u003cp\u003eThe second-upper mappings are shown by part number and model for verification.\u003c\/p\u003e\u003ch2\u003eQuick Answers\u003c\/h2\u003e\u003ch3\u003eCan it replace upper D25.4×4?\u003c\/h3\u003e\u003cp\u003eDo not assume so; second-upper is a separate optical position.\u003c\/p\u003e\u003ch3\u003eWhat does second-upper mean?\u003c\/h3\u003e\u003cp\u003eIt identifies a separate optical position.\u003c\/p\u003e\u003ch3\u003eHow do I confirm DP.V.P0045AA?\u003c\/h3\u003e\u003cp\u003eUse position, model and label together.\u003c\/p\u003e\u003cp\u003eBrowse \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. For position clarification, see \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":"D25.4×4-2H（DP.V.P0045AA）≤8kw","offer_id":42389199290404,"sku":null,"price":24.3,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-4（DP.V.P0003AA）≤15kw","offer_id":42389199323172,"sku":null,"price":46.3,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-6（DP.V.P0002AA）≤20kw","offer_id":42389199355940,"sku":null,"price":52.9,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-8（DP.V.P0007AA）≤30kw","offer_id":42389199388708,"sku":null,"price":57.4,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-10（DP.V.P0011AA）≤40kw","offer_id":42389199421476,"sku":null,"price":61.8,"currency_code":"USD","in_stock":true},{"title":"D25.4×4-12（DP.V.P0037AA）≤60kw","offer_id":42389199454244,"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-2nd-upper-protective-lens-d25-4-374.webp?v=1785128306"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/collections\/BOCHU_2nd-Upper_protective_lens_06cc3311-ff37-4ae0-8b12-7d5c99b57839.jpg?v=1785128362","url":"https:\/\/www.bochu.store\/en-sa\/collections\/bochu-boci-laser-2nd-upper-protective-lens.oembed","provider":"BOCHU Online Store","version":"1.0","type":"link"}