Collection: BOCHU BOCI 2nd-Upper Protective Lens Cartridge

BOCHU BOCI second-upper protective lens cartridges are grouped here for the second-upper optical position in compatible BLT laser cutting heads. Compare the position, complete BOCHU part number, protective-lens specification and matching cutting-head model on each product page. The second-upper position is not the standard upper position; for standard upper cartridges, see Upper Protective Lens Cartridges, and for lower-position products, see Lower Protective Lens Cartridges.

Second-Upper Lens Cartridge Configurations

BOCHU BOCI second-upper protective lens cartridges hold the protective window at the second-upper optical position in compatible BLT cutting heads. Cartridge variants are matched to specific head models, lens sizes and BOCHU part numbers. This position is different from the standard upper cartridge.

How to Confirm the Correct Cartridge

Check the second-upper position, cutting-head model, cartridge part number and protective lens dimensions. Similar cartridge frames may be used at different optical positions and are not automatically interchangeable. Send photos of the complete cartridge, package label and head nameplate when confirming compatibility.