Collection: BOCHU BOCI Lower Protective Lens Cartridge

BOCHU BOCI lower protective lens cartridges are grouped here for the lower protective-window position in compatible BLT laser cutting heads. Compare the cartridge structure, complete BOCHU part number, protective-lens specification and matching cutting-head model on each product page. The lower position is distinct from upper and second-upper positions; for the second-lower position, see 2nd-Lower Protective Lens Cartridges.

Lower Protective Lens Cartridge Options

BOCHU BOCI lower protective lens cartridges hold the lower protective window near the cutting process in compatible BLT laser cutting heads. Cartridge designs vary by head series, lens diameter, sealing structure and original BOCHU part number. The lower position is exposed to contamination and requires correct sealing.

How to Select the Correct Lower Cartridge

Match the lower installation position, cutting-head model, cartridge code and protective lens dimensions. Check whether the replacement includes only the cartridge or additional cover components. Send photos of the existing assembly, package label and head nameplate when the part number is not readable.