Link Metal CNC Laser Protective Lens for Fiber Laser Welding & Cutting Machines

Standard Laser Protective Lens for Fiber Laser Cutting & Welding

Professional industrial-grade fiber laser protective lenses, essential core consumables for all fiber laser cutting and welding machines. Designed to isolate dust, welding spatter and debris, our protective lenses safeguard the internal optical components of your laser head, ensuring stable laser output and long-term reliable equipment operation.

This standard version offers excellent cost-performance ratio with a complete range of 40+ conventional and customized sizes, dedicated models for 0-30KW+ lasers, and high-precision manufacturing for reliable optical performance in all industrial laser processing scenarios.

Key Advantages of Our Standard Protective Lenses

• Full Size & Full Power Coverage: Complete range of 40+ conventional and customized sizes with dedicated models for 0-15KW, 20KW, 30KW and high-power lasers. Provides 1:1 precision fit for all mainstream fiber laser cutting heads and welding guns on the market.
• High-Purity Fused Silica Material: Made from imported optical grade high-purity fused silica with exceptional transmittance of ≥99.8% at 1064nm wavelength. Features ultra-low absorption to effectively reduce laser energy loss and ensure stable cutting and welding power output.
• High Laser Damage Threshold: Professional anti-laser damage design can withstand long-term continuous high-power laser irradiation. Resists burning, effectively extends service life, and reduces replacement frequency and production costs.
• Double-Sided Precision Hard Coating: Both sides feature anti-reflection, anti-scratch and anti-spatter coating with excellent hydrophobic and oleophobic properties. Resists dust and welding slag adhesion, is easy to clean, and maintains stable optical performance in harsh environments.
• Ultra-High Precision CNC Polishing: Ultra-smooth optical surface with strict thickness and parallelism tolerance control. Free of bubbles, impurities and burrs, ensuring uniform laser spot and consistent processing quality.
• Broad Industrial Applicability: Suitable for 1064nm fiber laser cutting, handheld laser welding, automatic laser welding and robotic laser processing. Compatible with all common metal materials and widely used in various industrial fields.

Compatible Equipment & Available Size Options

Compatible Equipment

• All Mainstream Fiber Laser Cutting Machines
• All Handheld Laser Welding Machines
• All Automatic Laser Welding Systems
• All Robotic Laser Processing Equipment

Available Protective Lens Sizes (40+ Options)

• 18*2
• 20*2, 20*3, 20*4
• 21.5*2
• 22.35*4
• 24.9*1.5
• 25*2, 25*3, 25*4
• 26.5*5
• 27*2
• 27.9*4.1
• 28*2, 28*4
• 29.7*4.7
• 30*1, 30*1.5, 30*2, 30*3, 30*4, 30*5, 30*5 (High-Power)
• 32*2, 32*5
• 34*5, 34*5 (0-15KW), 34*5 (20KW), 34*5 (30KW)
• 35*1.6, 35*4
• 36*3, 36*5
• 37*1.6, 37*7, 37*7 (0-15KW), 37*7 (20KW), 37*7 (30KW)
• 38*1.5
• 40*2, 40*3, 40*5
• 45*3
• 48*3
• 50*2
• 55*1.5, 55*9

Custom Specifications Available: For custom sizes, special power models or other laser optical consumables, please contact our sales team directly for personalized solutions.

Detailed Technical Specifications

Package Contents

• 1 x Selected Link Metal CNC Laser Protective Lens (Standard Version)
• 1 x Class A Dust-Free Sealed Independent Packaging

Quality Assurance

Every Link Metal CNC standard laser protective lens undergoes rigorous pre-delivery testing, including optical performance testing, size tolerance inspection, coating quality verification, laser damage threshold test and appearance inspection.

We maintain strict ISO 9001 quality control standards to ensure stable and reliable optical performance. All our products come with professional pre-sales consultation and comprehensive after-sales support.

Frequently Asked Questions

Q: What is the difference between standard version and upgraded boxed version?
A: The main differences are: 1) Packaging: Standard version uses basic dust-free packaging, while upgraded boxed version uses enhanced shock-proof and moisture-proof hard plastic boxes; 2) Coating quality: Upgraded boxed version features a more advanced double-sided hard coating with 40% longer service life; 3) Price: Standard version offers better cost-performance for general use, while upgraded boxed version is ideal for high-volume production.

Q: How do I choose the correct protective lens size for my machine?
A: The required size depends on your specific laser cutting head or welding gun model. You can find the size information in your machine's user manual, or measure your existing protective lens (diameter and thickness). If you are unsure, please contact our sales team with your cutting head model number for confirmation.

Q: What is the benefit of the double-sided hard coating?
A: The double-sided hard coating provides three key benefits: 1) Enhanced anti-reflection properties for maximum laser transmittance; 2) Improved anti-scratch and anti-spatter resistance; 3) Hydrophobic and oleophobic properties that make cleaning easier and extend service life.

Q: How often should I replace my protective lens?
A: Replacement frequency depends on your usage intensity, material being processed and operating environment. Under normal conditions, protective lenses should be replaced every 1-2 weeks for high-volume production. Always replace the lens immediately if you notice any burns, cracks or significant spatter buildup.

Q: Can I clean and reuse a protective lens?
A: Yes, you can clean a lightly contaminated lens using isopropyl alcohol and lint-free optical wipes. However, once a lens has burns, deep scratches or significant spatter that cannot be removed, it must be replaced immediately to avoid damage to more expensive internal optical components.

View our Upgraded Boxed Version for enhanced performance, or browse our full range of laser cutting accessories and laser welding accessories.