Store Categories
- Laser Machine
- Blue Laser Marking Machine
- Fiber Marking Machine
- Fiber Welding Machine
- UV Marking Machine
- Laser Cleaning Machine
- CO2 Cutting Accessories
- CO2 Lens & Mirrors
- CO2 Laser Tube
- Water Chiller
- CO2 Power Supply
- Laser Head Set
- CO2 Safety Goggles
- CO2 Laser Controller
- CO2 Metal Parts
- Fiber Marking Accessories
- Marking Laser Source
- Galvo Scan Head
- F-Theta Lens
- Rotary Attachment
- Machine Cabinet & Columns
- 2D & 3D Workbench
- Beam Combiner & Expander
- Controller Board
- CO2 Laser Marking Accessories
- Marking Laser Source
- Galvo Scan Head
- F-Theta Lens
- Rotary Attachment
- Machine Cabinet & Columns
- 2D & 3D Workbench
- Beam Combiner & Expander
- Machanical Parts
- Controller Board
- UV Laser Marking Accessories
- Marking Laser Source
- Galvo Scan Head
- F-Theta Lens
- Rotary Attachment
- Machine Cabinet & Columns
- 2D & 3D Workbench
- Beam Combiner & Expander
- Machanical Parts
- Controller Board
- Fiber Welding Accessories
- Welding Laser Source
- Welding Heads & Wire Feeder
- Welding Nozzles
- Welding Auxiliary Accessories
- Fiber Cutting Accessories
- Fiber Laser Source
- Laser Cutting Head
- Controller System
- Water Chiller
- Focusing Collimating Lens
- Protective Windows
- Air System Part
- Machine Accessories
- Nozzle Body & Connector
- Laser Ceramic
- Laser Nozzles
- Fiber Cutting Controllers
- Industrial Parts
- Air Compressor & Fan
- Smoke Purifier
- Air System Part
- Cable Chains
- Belt Pulley Bearing
- Switch Power Supply
- Power Meter & Ammeter
- Laser Safety Goggles
- Switch Part
- Motors & Drivers
- Leadshine Motor & Driver
- Overseas Warehouse
- DIY Material
- Other
- Other
Product Description
Key Specifications
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Material: High-grade fused silica for superior optical clarity and resilience, ensuring maximum transparency and durability in harsh environments.
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Coating: Specialized anti-reflective (AR) coating optimized for 1064nm wavelength, reducing reflection and enhancing transmission for optimal laser performance.
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Power Handling: Compatible with fiber lasers up to 3000W, making it suitable for a wide range of high-power applications.
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Dimensions: Precision-crafted to fit standard QBH connectors (⌀27.9mm, 4.1mm thickness), ensuring a perfect fit and easy integration.
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Installation: User-friendly design allows for swift and straightforward replacement, minimizing system downtime and maintenance costs.
Why Choose Our QBH Protective Window?
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Cost-Effective Protection: Prevent expensive damage to your laser source and optical components by blocking harmful contaminants and debris.
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Performance Maintenance: Maintain peak laser efficiency by ensuring a clean and unobstructed optical path, free from dust and particles.
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Durability: Crafted from robust materials to withstand the rigors of industrial environments, offering long-lasting protection and reliability.
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Quality Assurance: Each window undergoes rigorous quality checks to meet the highest industry standards, providing you with peace of mind.
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Accepted Payment Methods
• Primary Channels:
• Address Requirement:
Orders will only be dispatched to PayPal-verified shipping addresses (PO Box addresses excluded from fulfillment).Payment Completion Deadline
Payment is required to be completed within 7 calendar days following the auction closure. Failure to pay within this period will lead to the opening of an unpaid item case via eBay's resolution system, and may cause account restrictions according to the platform policy.
Should any concerns arise regarding your purchase, we strongly encourage you to communicate with us via eBay Messages first. through eBay Messages before escalating via feedback or claims. Our Customer Success Team commits to:
• Acknowledging inquiries within 24 business hours
• Providing resolution options within 72 business hours
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China Warehouse:
Global delivery available to all countries. Product prices exclude shipping fees unless explicitly marked as "Free Shipping".
Customers are responsible for all applicable customs duties/taxes. We provide full customs clearance support. Please ensure contact information remains accessible post-purchase for logistics coordination.
USA Warehouse:
Domestic U.S. shipments only. Free standard shipping applies to small/medium items and heavy/bulky goods (e.g., laser markers, chillers).
Additional fees may apply for deliveries to Hawaii, Alaska, and other remote U.S. territories.
European(Czech Republic) Warehouse:
Pan-European delivery (excluding the UK). Free shipping with full customs clearance managed by us.
UK Warehouse:
Domestic UK shipments only. Free shipping with no additional fees.
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30-Day Satisfaction Guarantee
We accept returns with full refunds for any reason within 30 days of purchase.
Return Packaging Requirements
Customers must retain the original packaging in its intact condition for all return procedures.
Return Shipping Cost Allocation
• For small and medium-sized items: We cover all return shipping costs
• For large equipment (e.g., laser marking machines, chillers, laser tubes): If the return is due to reasons unrelated to product defects (e.g., buyer’s remorse, incorrect order), the customer is responsible for return shipping costs.