RayTools Original Protective Window/Lens 27.9×4.1 mm for Laser Cutting Head – Up to 4KW
The RayTools Original Protective Window/Lens 27.9×4.1 mm is a high-quality optical protection component designed for compatible RayTools laser cutting heads and fiber laser cutting machines with power capacity up to 4KW. It is installed in the laser cutting head to protect sensitive internal optical components from contamination and damage caused by the cutting process.
During laser cutting operations, smoke, dust, sparks, molten metal, metal particles, and other debris can be generated near the cutting head. The protective window provides a barrier between these contaminants and the internal optics, helping maintain a clean optical path and reliable laser performance.
Product Features
Brand: RayTools
Product Type: Original Protective Window / Protective Lens
Size: 27.9 × 4.1 mm
Power Capacity: Up to 4KW
Application: Compatible RayTools Laser Cutting Head / Fiber Laser Cutting Machine
Function: Protects internal optical components from contamination
Protection: Helps shield against dust, smoke, sparks, metal splashes, and cutting debris
Usage: Suitable for industrial laser cutting applications
Replacement: Ideal for replacing worn, contaminated, or damaged protective windows
Reliable Optical Protection
The protective window is an important part of a laser cutting head because it helps prevent contaminants from reaching the focusing lens and other sensitive optical components. Keeping this protective lens clean and undamaged can help maintain consistent laser beam transmission and support stable cutting performance.
A contaminated or damaged protective window may affect laser cutting quality and can increase the risk of damage to the internal optics. Regular inspection and timely replacement are therefore recommended as part of routine laser machine maintenance.
Suitable Applications
The RayTools 27.9×4.1 mm Protective Window/Lens is suitable for compatible laser cutting heads and machines operating with laser power up to 4KW. It can be used in various industrial metal cutting applications, including:
Mild Steel
Stainless Steel
Carbon Steel
Aluminium
Brass
Copper
Other compatible metal materials
Key Benefits
Original RayTools protective optical component
Helps protect internal cutting head optics
Reduces exposure to dust, smoke, sparks, and metal particles
Helps maintain a clean optical path
Supports stable laser beam transmission
Helps maintain consistent cutting quality
Suitable for laser systems up to 4KW
Ideal for routine maintenance and replacement
Helps reduce the risk of contamination-related optical damage
Product Specifications
Specification Details
Brand RayTools
Product Original Protective Window / Lens
Size 27.9 × 4.1 mm
Power Capacity Up to 4KW
Application Laser Cutting Head
Machine Type Fiber Laser Cutting Machine
Purpose Protection of Internal Optics
Usage Industrial Laser Cutting
Maintenance & Replacement
Regularly check the protective window for dust, stains, scratches, cracks, burn marks, or other damage. Clean the lens using proper optical cleaning procedures and suitable optical-grade materials. If the lens is damaged or cannot be cleaned properly, replacement is recommended.
Maintaining a clean protective window helps support efficient laser operation and consistent cutting results.
Important Note
Please verify the dimensions, laser cutting head model, and compatibility before ordering. The 27.9×4.1 mm protective window is intended for compatible RayTools laser cutting head configurations. Actual performance and service life may vary depending on laser power, cutting material, operating conditions, and maintenance practices.
RayTools Original Protective Window/Lens 27.9×4.1 mm is a reliable optical protection component for compatible fiber laser cutting heads and machines up to 4KW, helping protect valuable internal optics while supporting stable and consistent laser cutting performance.
