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.
