D50 ET8 Protective Window 60 kW for Fiber Laser Cutting Heads

replacement protective window in d50 / et8 rated up to 60 kw, made for fiber laser cutting heads. the ar coating keeps transmission high while the window absorbs contamination instead of the focus lens.

size:

• diameter (d): 50 mm
• thickness (et): 8 mm
• pack: 1 × protective window

spec:

• ar-coated for fiber laser wavelengths to reduce reflection and power loss
• suitable for 60 kw cutting systems
• thick 8 mm window for high-power heads and higher gas pressure
• plane-parallel faces help keep focus and gas flow consistent

material:

• quartz fused silica window
• stable under rapid local heating from spatter hits
• ar coating applied to both surfaces for high transmission

use:

• protective window in fiber laser cutting heads
• shields the focus lens from dust, fumes and metal spatter
• lets you swap a cheap window instead of cleaning or replacing the lens
• high-power cutting of thick plate on 30 kw+ sources

compatibility:

• for fiber laser cutting heads that use round d50 mm × et8 mm protective windows
• also available in a 30 kw version in the same size; choose the class that matches your laser source
• match diameter, thickness and power class with the window you are replacing

quality:

• each window visually inspected for coating defects and scratches
• clean, chip-free edges
• packed individually to keep the optical faces clean