{"title":"BOCHU BOCI Laser Lower Protective Lens","description":"\u003cp\u003eBOCHU BOCI lower protective lenses for the lower protective-window position in compatible BLT fiber laser cutting heads. Current size families include D25.4×4, D34×5, D37×7 and D50×8. Compare the exact dimensions, installation position, BOCHU part number and compatible BLT model on each product page. Power information is a secondary configuration reference only where listed.\u003c\/p\u003e\n\u003cp\u003eSelect lower lenses by position, D-size and original part number before using a qualified model route. Start with \u003ca href=\"\/en-sa\/products\/bochu-boci-original-laser-lower-protective-lens-d34-0t5-8-60kw\"\u003eD34×5 Lower Protective Lens\u003c\/a\u003e where its product table matches the installed configuration.\u003c\/p\u003e","products":[{"product_id":"bochu-boci-original-laser-lower-protective-lens-d34-0t5-8-60kw","title":"BOCHU BOCI Lower Protective Lens D34×5（8~60KW）","description":"\u003cp\u003eOriginal BOCHU BOCI D34×5 lower protective lenses for the listed BLT cutting-head configurations. This page includes six distinct configurations with listed power limits of 8, 15, 20, 30, 40 and 60 kW. Confirm the lower position, original Part Number and listed BLT model before selecting a variant.\u003c\/p\u003e\u003ch2\u003ePart Numbers, Listed Power and Models\u003c\/h2\u003e\u003ctable style=\"width:100%;table-layout:fixed;border-collapse:collapse;font-size:0.875rem;\" border=\"1\" cellspacing=\"0\" cellpadding=\"6\"\u003e\n\u003ccaption style=\"text-align:left;padding:0.5rem 0;\"\u003eD34×5 lower protective lens selection reference\u003c\/caption\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\" style=\"width:22%;overflow-wrap:anywhere;\"\u003eSize\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"width:25%;overflow-wrap:anywhere;\"\u003eOriginal Part Number\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"width:18%;overflow-wrap:anywhere;\"\u003eListed power\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"width:35%;overflow-wrap:anywhere;\"\u003eListed BLT model\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eD34×5-2S\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eDP.V.P0049AA\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003e≤8 kW\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eBLT421S, BLT421TS, BLT510, BLT520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eD34×5-4\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eP.S.B0021\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003e≤15 kW\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eBLT420, BLT420S, BLT421, BLT421T, BLT440F, BLT441, BLT441T, BLT442, BLT442T, BLT641, BLT641H, BLT642H, BLT520H, BLT540H, BLT840H, BLT442P, BLT640, BLT643H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eD34×5-6\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eDP.V.P0004AA\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003e≤20 kW\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eBLT460F, BLT461, BLT462, BLT461T, BLT462T, BLT661, BLT661H, BLT662H, BLT662MA, BLT860H, BLT560H, BLT462P, BLT663H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eD34×5-8\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eDP.V.P0005AA\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003e≤30 kW\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eBLT481, BLT482, BLT681H, BLT682H, BLT682MA, BLT482P, BLT980MA, BLT683H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eD34×5-10\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eDP.V.P0012AA\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003e≤40 kW\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eBLT4101, BLT4102, BLT6101H, BLT6102H, BLT6102MA, BLT4102P, BLT9100MA, BLT6103H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eD34×5-12\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eDP.V.P0038AA\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003e≤60 kW\u003c\/td\u003e\n\u003ctd style=\"vertical-align:top;overflow-wrap:anywhere;\"\u003eBLT4122, BLT9120MA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eHow to Select the Correct Variant\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eConfirm the lower installation position and D34×5 size.\u003c\/li\u003e\n\u003cli\u003eMatch the original Part Number to the listed BLT model.\u003c\/li\u003e\n\u003cli\u003eUse the listed power as a supporting cross-check.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eSimilar dimensions do not establish the same model assignment. If the matching model cannot be confirmed, send a clear photo of the package label or cutting-head nameplate to BOCHU for confirmation.\u003c\/p\u003e\u003cp\u003eBrowse \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-lower-protective-lens\"\u003eLower Protective Lenses\u003c\/a\u003e.\u003c\/p\u003e","brand":"BOCHU","offers":[{"title":"D34×5-2S（DP.V.P0049AA) 8kw","offer_id":42361854197796,"sku":null,"price":8.8,"currency_code":"USD","in_stock":true},{"title":"D34×5-4（P.S.B0021）15KW","offer_id":42360774623268,"sku":null,"price":9.4,"currency_code":"USD","in_stock":true},{"title":"D34×5-6（DP.V.P0004AA）20KW","offer_id":42361854230564,"sku":null,"price":13.2,"currency_code":"USD","in_stock":true},{"title":"D34×5-8（DP.V.P0005AA）30KW","offer_id":42361854263332,"sku":null,"price":14.7,"currency_code":"USD","in_stock":true},{"title":"D34×5-10（DP.V.P0012AA）40KW","offer_id":42361854296100,"sku":null,"price":17.6,"currency_code":"USD","in_stock":true},{"title":"D34×5-12（DP.V.P0038AA）60KW","offer_id":42361854328868,"sku":null,"price":35.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/files\/bochu-boci-lower-protective-lens-d34-5-8-60kw-126.webp?v=1785128428"},{"product_id":"bochu-boci-original-lower-laser-protective-lens-25-4-4-2s-8kw","title":"BOCHU BOCI Lower Protective Lens D25.4×4-2S（8kw）","description":"\u003cp\u003eOriginal BOCHU BOCI D25.4×4-2S lower protective lens for BLT310 and BLT310T. This page covers one configuration, DP.V.P0048AA, listed at 8 kW. Confirm the lower protective-lens position, D25.4×4-2S designation, part number and cutting-head model before ordering.\u003c\/p\u003e\u003ch2\u003ePart Numbers and Matching Models\u003c\/h2\u003e\r\n\u003cp\u003eBOCHU（BOCI）D25.4×4-2S Protective Lens（8kw）\u003c\/p\u003e\r\n\u003cp\u003ePart Number：DP.V.P0048AA\u003c\/p\u003e\r\n\u003cp\u003eMatching Model：BLT310、BLT310T\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\r\n\u003ch2\u003eHow to Confirm the Correct Part\u003c\/h2\u003e\u003cp\u003eConfirm the lower protective-lens position, D25.4×4-2S designation, BOCHU part number DP.V.P0048AA, and BLT310 or BLT310T model before ordering. Do not select another D25.4×4 lens by dimensions alone.\u003c\/p\u003e\u003ch2\u003eWhy Correct Selection Matters\u003c\/h2\u003e\u003cp\u003eOther D25.4×4 protective lenses exist for different optical positions and configurations. Matching dimensions alone do not establish that another D25.4×4 lens is the correct replacement.\u003c\/p\u003e\u003ch2\u003eWhy Buy From BOCHU.store\u003c\/h2\u003e\u003cp\u003eThe BOCHU part number DP.V.P0048AA and its listed BLT310 \/ BLT310T application are shown together for direct confirmation before ordering.\u003c\/p\u003e\u003ch2\u003eQuick Answers\u003c\/h2\u003e\u003ch3\u003eWhich BOCHU part number is listed?\u003c\/h3\u003e\u003cp\u003eDP.V.P0048AA.\u003c\/p\u003e\u003ch3\u003eWhich cutting-head models are listed?\u003c\/h3\u003e\u003cp\u003eBLT310 and BLT310T.\u003c\/p\u003e\u003ch3\u003eCan I select another D25.4×4 lens because the dimensions match?\u003c\/h3\u003e\u003cp\u003eNo. Confirm the optical position, part number and cutting-head model.\u003c\/p\u003e\u003cp\u003eBrowse \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-lower-protective-lens\" title=\"BOCHU BOCI Lower Protective Lenses\"\u003eLower Protective Lenses\u003c\/a\u003e.\u003c\/p\u003e","brand":"BOCHU","offers":[{"title":"Default Title","offer_id":42361915080740,"sku":null,"price":8.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/files\/bochu-boci-lower-protective-lens-d25-4-2s-8kw-427.webp?v=1785128652"},{"product_id":"bochu-boci-original-lower-protective-lens-d37-0t7-80-120kw","title":"BOCHU BOCI Lower Protective Lens D37×7（80~120KW）","description":"\u003cp\u003eOriginal BOCHU BOCI D37×7 lower protective lenses for the listed BLT cutting-head configurations. This page includes three distinct configurations: DP.V.P0027AA for BLTA140M at up to 80 kW, DP.V.P0031AA for BLTA160M at up to 100 kW, and DP.V.P0033AA for BLTA180M at up to 120 kW. Confirm the lower position, part number and model before selecting a variant.\u003c\/p\u003e\u003ch2\u003ePart Numbers and Matching Models\u003c\/h2\u003e\r\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" width=\"873\" border=\"0\" style=\"border-collapse: collapse; width: 532px; height: 200.623px;\"\u003e\r\n\u003ccolgroup\u003e \u003ccol width=\"529\" style=\"width: 279px;\"\u003e \u003ccol width=\"344\" style=\"width: 252px;\"\u003e \u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr style=\"height: 67.7407px;\"\u003e\r\n\u003ctd height=\"130\" width=\"529\" style=\"width: 396.75pt;\" class=\"et4\"\u003ePart Number\u003c\/td\u003e\r\n\u003ctd width=\"344\" style=\"width: 258.00pt;\" class=\"et4\"\u003eMatching Model\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 48.7384px;\"\u003e\r\n\u003ctd height=\"48\" class=\"et7\"\u003eD37×7-14（DP.V.P0027AA）≤80kw\u003c\/td\u003e\r\n\u003ctd class=\"et7\"\u003eBLTA140M\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 50.0694px;\"\u003e\r\n\u003ctd height=\"49\" class=\"et7\"\u003eD37×7-16（DP.V.P0031AA）≤100kw\u003c\/td\u003e\r\n\u003ctd class=\"et7\"\u003eBLTA160M\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 34.0741px;\"\u003e\r\n\u003ctd height=\"33\" class=\"et7\"\u003eD37×7-18（DP.V.P0033AA）≤120kw\u003c\/td\u003e\r\n\u003ctd class=\"et7\"\u003eBLTA180M\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 lower position and D37×7 size, then match the exact part number and BLTA model. The listed 80, 100 and 120 kW values are separate configuration cross-checks, not one continuous range.\u003c\/p\u003e\u003ch2\u003eWhy Correct Selection Matters\u003c\/h2\u003e\u003cp\u003eEach listed rating maps to a separate part number and model.\u003c\/p\u003e\u003ch2\u003eWhy Buy From BOCHU.store\u003c\/h2\u003e\u003cp\u003eThe one-to-one part-number, model and listed-rating mapping is shown for verification before ordering.\u003c\/p\u003e\u003ch2\u003eQuick Answers\u003c\/h2\u003e\u003ch3\u003eAre the three ratings the same variant?\u003c\/h3\u003e\u003cp\u003eNo. Each has a separate part number and model.\u003c\/p\u003e\u003ch3\u003eCan I choose by size?\u003c\/h3\u003e\u003cp\u003eNo. Match the part number and BLTA model.\u003c\/p\u003e\u003ch3\u003eWhat should I use for confirmation?\u003c\/h3\u003e\u003cp\u003eUse the package label or cutting-head nameplate.\u003c\/p\u003e\u003cp\u003eBrowse \u003ca href=\"https:\/\/www.bochu.store\/collections\/bochu-boci-laser-lower-protective-lens\" title=\"BOCHU BOCI Lower Protective Lenses\"\u003eLower Protective Lenses\u003c\/a\u003e.\u003c\/p\u003e","brand":"BOCHU","offers":[{"title":"D37×7-14（DP.V.P0027AA）80KW","offer_id":42361942114340,"sku":null,"price":44.1,"currency_code":"USD","in_stock":true},{"title":"D37×7-16（DP.V.P0031AA）100KW","offer_id":42361942147108,"sku":null,"price":105.9,"currency_code":"USD","in_stock":true},{"title":"D37×7-18（DP.V.P0033AA）120KW","offer_id":42361942179876,"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-lower-protective-lens-d37-7-80-120kw-787.webp?v=1785128498"},{"product_id":"bochu-boci-lower-protective-lens-d50-8","title":"BOCHU BOCI Lower Protective Lens D50×8","description":"\u003cp\u003eBOCHU BOCI D50×8 lower protective lenses for the lower protective-window position in the listed BLT configurations. Confirm the exact D50×8 size, BOCHU part number and BLT model before selecting a variant.\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"858\" height=\"120\" style=\"border-collapse: collapse; width: 543px;\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"558\" style=\"width: 399.5px;\"\u003e \u003ccol width=\"300\" style=\"width: 142.5px;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr height=\"42\" style=\"height: 32.00pt;\"\u003e\n\u003ctd class=\"et2\" height=\"42\" width=\"558\" style=\"height: 32.00pt; width: 418.50pt;\"\u003eModel\u003c\/td\u003e\n\u003ctd class=\"et2\" width=\"300\" style=\"width: 225.00pt;\"\u003eCompatible with\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"42\" style=\"height: 32.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"42\" style=\"height: 32.00pt;\"\u003eD50.0T8-12（DP.V.P0021AE）≤60kw\u003c\/td\u003e\n\u003ctd class=\"et3\"\u003eBLT6120H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" style=\"height: 30.00pt;\"\u003eD50.0T8-14（DP.V.P0024AE）≤80kw\u003c\/td\u003e\n\u003ctd class=\"et4\"\u003eBLT6140H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eHow to Select the Correct Variant\u003c\/h2\u003e\n\u003cp\u003eConfirm the lower protective-window position and D50×8 designation, then match the exact BOCHU part number and BLT model. The listed 60 kW and 80 kW values are separate configuration cross-checks, not a universal range.\u003c\/p\u003e\n\u003ch2\u003eWhy Correct Selection Matters\u003c\/h2\u003e\n\u003cp\u003eMatching dimensions alone do not establish the correct replacement. Confirm the position, part number and compatible BLT model together.\u003c\/p\u003e\n\u003ch2\u003eSelf-Service Selection\u003c\/h2\u003e\n\u003cp\u003eThe two D50×8 options are organized by original BOCHU part number and compatible BLT model so you can verify the correct variant before ordering online.\u003c\/p\u003e\n\u003ch2\u003eQuick Answers\u003c\/h2\u003e\n\u003ch3\u003eWhich part number matches BLT6120H?\u003c\/h3\u003e\n\u003cp\u003eDP.V.P0021AA, listed as D50.0T8-12 and up to 60 kW.\u003c\/p\u003e\n\u003ch3\u003eWhich part number matches BLT6140H?\u003c\/h3\u003e\n\u003cp\u003eDP.V.P0024AA, listed as D50.0T8-14 and up to 80 kW.\u003c\/p\u003e\n\u003ch3\u003eCan I select by D50×8 dimensions alone?\u003c\/h3\u003e\n\u003cp\u003eNo. Confirm the lower position, part number and BLT model.\u003c\/p\u003e\n\u003cp\u003eBrowse \u003ca href=\"\/en-sa\/collections\/bochu-boci-laser-lower-protective-lens\"\u003eLower Protective Lenses\u003c\/a\u003e.\u003c\/p\u003e","brand":"BOCHU","offers":[{"title":"D50.0T8-12（DP.V.P0021AE）≤60kw","offer_id":51194602192932,"sku":null,"price":35.3,"currency_code":"USD","in_stock":true},{"title":"D50.0T8-14（DP.V.P0024AE）≤80kw","offer_id":51194602225700,"sku":null,"price":44.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/files\/bochu-boci-lower-protective-lens-d50-8-527.webp?v=1785465906"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2930\/7940\/collections\/BOCHU_Lower_protective_lens_bca1b32d-905f-4a37-aca0-07db0f9a8513.jpg?v=1785128358","url":"https:\/\/www.bochu.store\/en-sa\/collections\/bochu-boci-laser-lower-protective-lens.oembed","provider":"BOCHU Online Store","version":"1.0","type":"link"}