D24.4 ET2 1090nm 20KW Protective Window Precitec Procutter 2.0 Fiber Laser Germany Material

d24.4 et2 protective window for high-power fiber laser cutting heads. fused silica optic with ar coating optimized for 1090 nm, rated for up to 20 kw in a properly maintained head. sits in front of the focus lens to intercept spatter, fumes and dust — keeping main optics cleaner for longer and reducing unplanned downtime. suitable for precitec procutter 2.0 fiber laser cutting head applications where stable optical protection and consistent cutting performance are important.

size:

• diameter (d): 24.4 mm
• thickness (et): 2 mm
• quantity: 1 × protective window

spec:

• optimized for ~1090 nm fiber laser systems
• ar-coated surfaces to reduce reflection and power loss
• power handling: up to 20 kw in a correctly aligned and maintained cutting head
• precise thickness and surface flatness for stable cutting performance
• parallel faces to help maintain consistent focus and gas flow

material:

• quartz fused silica — germany-sourced optics
• low absorption and good thermal stability under high power
• durable ar coating for long service life

use:

• protective front window in fiber laser cutting heads
• shields the focus lens from dust, fumes and metal spatter
• helps extend focus lens lifetime and reduce unplanned downtime and cleaning stops

compatibility:

• for precitec procutter 2.0 fiber laser cutting heads using round protective windows at d24.4 mm / et2 mm
• suitable for procutter 2.0 type cutting head maintenance and replacement needs
• always confirm your original window diameter and thickness before ordering

quality:

• each window visually inspected and packed in clean trays
• smooth edges and uniform coating for repeatable reliable performance in production environments