Fibre Laser Protective Lens – 29.4 × 1.5mm Fused Silica | 15kW

Protect sensitive optical components and maintain reliable fibre laser cutting performance with this 29.4 × 1.5mm fused silica protective lens, specified for laser systems operating at a nominal wavelength of 1064nm and rated up to 15kW.

Designed to provide a protective barrier against cutting debris, molten metal spatter and airborne contamination, this replacement lens helps preserve internal cutting head optics and supports consistent cutting performance in demanding industrial applications.

Manufactured from high-quality fused silica, it offers excellent thermal stability, optical clarity and resistance to temperature fluctuations.

Reliable Protection for Fibre Laser Optics

Protective lenses play a vital role in maintaining the performance and reliability of fibre laser cutting systems.

During cutting operations, molten metal particles, dust and other contaminants can accumulate on exposed optical surfaces. Without an effective protective barrier, these contaminants can affect beam transmission, compromise cutting quality and potentially damage expensive internal optical components.

Regular inspection and timely replacement of protective lenses help maintain cutting efficiency while reducing the risk of unplanned machine downtime.

High-Performance Fused Silica Construction

Manufactured from fused silica, this protective lens offers the thermal and optical characteristics required for industrial laser applications.

Fused silica provides low thermal expansion, excellent thermal stability and high optical transparency at appropriate laser wavelengths.

When correctly specified and installed, the lens helps maintain efficient laser transmission with minimal optical distortion, supporting consistent beam quality and accurate cutting results.

Key Features & Benefits

• Precision dimensions – 29.4mm diameter × 1.5mm thickness.

• High-quality fused silica – Excellent thermal stability and optical properties.

• 15kW stated power rating – Intended for compatible high-power fibre laser applications.

• 1064nm nominal wavelength – Specified for near-infrared laser systems.

• Protects sensitive internal optics – Provides a barrier against cutting debris, spatter and airborne contamination.

• Supports consistent cutting performance – Helps preserve efficient beam transmission and cutting precision.

• Low thermal expansion – Helps maintain dimensional stability under changing operating temperatures.

• Replaceable optical consumable – Suitable for routine laser cutting head maintenance where the specified lens is required.

Technical Specifications

Compatibility & Maintenance

This protective lens is intended for fibre laser cutting systems requiring a 29.4 × 1.5mm fused silica optical window.

Before ordering, confirm the protective lens dimensions, optical coating, power rating and compatibility with your specific cutting head model.

Inspect lenses regularly for contamination, discolouration, scratches or other signs of damage. Always follow the cutting head manufacturer's recommended procedures for handling, cleaning and replacement.