Collection: BOCHU BOCI 2nd-Lower Protective Lens Cartridge

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

Second-Lower Lens Cartridge Configurations

BOCHU BOCI second-lower protective lens cartridges support the second-lower protective window position in compatible BLT laser cutting heads. Each cartridge is designed around a particular head series, lens diameter, mechanical frame and original BOCHU part number.

How to Select a Second-Lower Cartridge


Confirm that the required position is second-lower rather than lower, then compare the cutting-head model, part number and lens dimensions. Position-specific cartridges may look similar but use different mounting details. Provide photos of the cartridge and head nameplate when the label is unavailable.