BOCHU BOCI Laser Lower Protective Lens

Shop BOCHU BOCI lower protective lenses in the listed D25.4, D34, D37 and D50 size families. Match the lower position, exact specification and Part Number; check the listed model before selecting a configuration.

Selection details & related guides

BOCHU 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.

Select lower lenses by position, D-size and original part number before using a qualified model route. Start with D34×5 Lower Protective Lens where its product table matches the installed configuration.

For a step-by-step replacement-part identity checklist before selecting a lower protective lens, see How to confirm the correct BOCHU / BOCI replacement part before ordering.

For a confirmed BLT421S cutting head, use the BLT421S lower protective window, cartridge and cover guide to distinguish the item you need before choosing a replacement. The guide includes a conditional link to the D34×5-2S / DP.V.P0049AA option. It does not establish the same selection for other BLT models.

Available Lower Protective Lens Sizes

This collection covers BOCHU BOCI lower protective lenses, also called lower protective windows, for the lower protective position in BLT fiber laser cutting heads. Available size families include D25.4×4, D34×5, D37×7 and D50×8. Each family may have different part numbers and BLT model mappings.

How to Select the Correct Lower Protective Lens

Start with the lower installation position, then match the exact dimensions, BOCHU part number and compatible BLT model shown on the product page. Similar diameter or appearance does not establish compatibility. Use listed power information only as an additional configuration cross-check. If uncertain, send a photo of the existing package, label or cutting-head nameplate for confirmation.