LinkMetal CNC Silicone Sealing Washer for CO₂ Laser Focus Lens & Reflector Mirror (5pcs/pack)

Silicone Sealing Washer for CO₂ Laser Focus Lens & Reflective Mirror

High quality silicone sealing washers specially designed for CO₂ laser focus lenses and reflective mirrors. Installed between the optical element and the lens holder to provide reliable airtight sealing, prevent dust, fumes and contaminants from entering the laser head assembly, and significantly extend the service life of expensive optical components.

This complete product series includes 7 standard sizes, fully compatible with all mainstream CO₂ laser focus lenses and reflective mirrors. Each pack contains 5 pieces, convenient for daily replacement and maintenance.

Key Advantages of Our Silicone Sealing Washers

• High Temperature Resistant Silicone: Made from premium high temperature resistant silicone material. Stable performance from -40°C to 200°C, suitable for continuous laser working conditions.
• Excellent Sealing Effect: Good elasticity and compression resistance. Creates a tight airtight seal between the optical element and lens holder, preventing air leaks and dust ingress.
• Precision Molded Dimensions: Precision molded to exact specifications. Perfect fit for all standard laser lens holders, ensuring proper alignment and sealing.
• Universal Compatibility: Compatible with all mainstream CO₂ laser focus lenses, protective windows and reflective mirrors from all major brands.
• Convenient 5-Piece Packaging: 5 pieces per pack, ideal for daily replacement and maintenance. Always have spares on hand to minimize downtime.
• 7 Standard Sizes Available: Complete range of inner diameters available, covering all common optical element diameters used in CO₂ laser systems.
• Easy Installation & Replacement: Simple to install and replace. No special tools required, can be replaced in seconds during routine maintenance.

Compatible Equipment & Available Sizes

Compatible Applications

• CO₂ Laser Focus Lenses
• CO₂ Laser Reflective Mirrors
• CO₂ Laser Protective Windows
• CO₂ Laser Beam Combiners
• All Standard Laser Lens Holders

Available Sealing Washer Sizes (5pcs/pack)

• D12mm: Inner diameter 12mm, for 12mm and 12.7mm optical elements
• D15mm: Inner diameter 15mm, for 15mm optical elements
• D18mm: Inner diameter 18mm, for 18mm optical elements
• D19mm: Inner diameter 19mm, for 19mm and 19.05mm optical elements
• D20mm: Inner diameter 20mm, for 20mm optical elements
• D25mm: Inner diameter 25mm, for 25mm optical elements
• D28mm: Inner diameter 28mm, for 28mm optical elements

Custom Sizes Available: For custom inner diameters, outer diameters or thicknesses, please contact our sales team directly for personalized solutions.

Detailed Technical Specifications

Package Contents

• 5 x Selected Size Link Metal CNC Silicone Sealing Washers
• 1 x Sealed Dust-proof Plastic Bag

Quality Assurance

All silicone sealing washers from Link Metal CNC undergo strict dimensional inspection before delivery. We ensure precise dimensions, good elasticity and reliable sealing performance for all our products.

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

Frequently Asked Questions

Q: Why do I need sealing washers for my laser optics?
A: Sealing washers create an airtight seal between the optical element and the lens holder. They prevent dust, fumes and cutting debris from entering the laser head assembly, which is the leading cause of premature optical component failure. A $2 sealing washer can protect a $200+ focusing lens from damage.

Q: How often should I replace the sealing washer?
A: Sealing washers should be replaced every time you replace an optical element (lens, mirror or window). They should also be replaced if they become cracked, deformed, brittle or lose their elasticity. Regular replacement ensures proper sealing and maximum protection for your optics.

Q: How do I install the sealing washer correctly?
A: Place the sealing washer in the lens holder groove first, then place the optical element on top of the washer. Make sure the washer is properly seated and not twisted or folded. Tighten the retaining ring gently to compress the washer and create a tight seal.

Q: Can I reuse a sealing washer?
A: While sealing washers can technically be reused, we recommend replacing them every time you service the laser head. Reused washers may lose their elasticity and sealing ability, allowing dust to enter and damage your expensive optics. The low cost of replacement makes this a worthwhile investment.

Q: How do I choose the correct size sealing washer?
A: Choose a sealing washer with an inner diameter that matches the diameter of your optical element. For example, use a D20mm washer for a 20mm diameter lens. The outer diameter is designed to fit standard lens holders for that size optical element.

View our full range of laser cutting accessories including CO₂ focus lenses, reflective mirrors, protective windows and more.