Import 4 N-Bk7 Precision Window Dia.5mm — Buy in wholesale FOB from Supplier in China
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4 N-BK7 Precision Window Dia.5mm
The 4 N-BK7 Precision Window is a high-precision optical component with a diameter of 5mm, manufactured from N-BK7 optical glass. This material is selected for its excellent transmission properties in the visible and near-infrared spectrum, making it a cost-effective choice for laser applications where thermal stability is less critical than budget constraints.
The window features a surface flatness of 1/10 lambda and surface quality of 10-5 or 20-10, ensuring minimal wavefront distortion and high optical performance. Typical tolerances for diameter are +/-0.02mm, with parallelism controlled to within a few arc seconds. These windows are produced using advanced polishing machines, including four-axis and large-size ring polishing equipment, to achieve the required precision.
Primary applications include laser systems, imaging optics, and scientific instruments where precise beam transmission is essential. Buyers in industries such as aerospace, defence, and medical devices often source these windows for integration into high-performance optical assemblies. Confirm the availability of Zygo flatness reports and CA 600mm window capabilities if your application demands larger formats or stringent quality documentation.
| Material | N-BK7 optical glass |
| Diameter | 5mm |
| Diameter Tolerance | +/-0.02mm |
| Surface Flatness | 1/10 lambda |
| Surface Quality | 10-5 or 20-10 |
| Parallelism | typical <5 arc seconds |
| Transmission Range | typical 350nm to 2.0µm for N-BK7 |
| Typical Applications | Laser systems, imaging optics, scientific instruments |
| Manufacturing Process | Four-axis polishing, large-size ring polishing |
| Available Documentation | 24 inch Zygo flatness reports, full CA 600mm windows |
Changchun Sunday Optoelectronics Co., Ltd is headquartered in Changchun, China, with its address at No. 9576 Donghuan Road. The company specialises in the processing of precision optical windows, utilising advanced machinery such as four-axis polishing and large-size ring polishing systems to meet high-precision requirements.
The supplier is listed under the harbor trust tier, with no current response rate or average response hours recorded. Changchun Sunday Optoelectronics focuses on producing optical components from materials like BK7, fused silica, sapphire, ZnSe2, CaF2, Si, and Ge, catering to industries requiring high-performance optics.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing 4 N-BK7 Precision Window Dia.5mm from Changchun Sunday Optoelectronics Co., Ltd - China Import Guide
Before ordering, verify the window’s diameter tolerance, surface flatness, and material transmission range with Changchun Sunday Optoelectronics. These specifications are critical for ensuring compatibility with your optical system, particularly in laser or imaging applications where precision is paramount.
Confirm the availability of Zygo flatness reports and whether the supplier can meet larger size requirements, such as full CA 600mm windows. Logistics details, including lead time, Incoterms, and payment terms, should also be discussed, as these are not specified in the current listing.
Quality checks should include inspecting the surface quality (10-5 or 20-10) and flatness (1/10 lambda) upon delivery. Request documentation for parallelism and material certifications to ensure the windows meet your application’s optical and dimensional requirements. For high-power laser use, confirm whether fused silica or another thermally stable material is recommended.
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30 suppliersBuy 4 N-Bk7 Precision Window in Bulk — Verified Supplier in China
When sourcing 4 N-Bk7 Precision Window Dia.5mm for your business, securing the right balance of quality and cost is essential. Changchun Sunday Optoelectronics Co., Ltd, a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $10/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Window Films & Screens sector with strong demand from importing countries worldwide.
4 N-Bk7 Precision Window Specifications, Trade Terms & Pricing
Importing 4 N-Bk7 Precision Window requires careful attention to shipping logistics, customs compliance, and secure payment terms. Changchun Sunday Optoelectronics Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
About Changchun Sunday Optoelectronics Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 4 N-Bk7 Precision Window has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Window Films & Screens category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import 4 N-Bk7 Precision Window — Shipping, Logistics & Customs
Importing 4 N-Bk7 Precision Window requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About 4 N-Bk7 Precision Window
What is the wholesale price of 4 N-Bk7 Precision Window Dia.5mm?
The current listed wholesale price for 4 N-Bk7 Precision Window Dia.5mm from Changchun Sunday Optoelectronics Co., Ltd is $10/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Changchun Sunday Optoelectronics Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for 4 N-Bk7 Precision Window?
The supplier, Changchun Sunday Optoelectronics Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for 4 N-Bk7 Precision Window. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 4 N-Bk7 Precision Window Dia.5mm?
The HS Code classification for 4 N-Bk7 Precision Window Dia.5mm depends on the specific grade and form. Contact Changchun Sunday Optoelectronics Co., Ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import 4 N-Bk7 Precision Window from China?
To import 4 N-Bk7 Precision Window from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Changchun Sunday Optoelectronics Co., Ltd. Ensure you have the necessary import licenses for Window Films & Screens products in your destination country.
Is Changchun Sunday Optoelectronics Co., Ltd a verified supplier?
Yes, Changchun Sunday Optoelectronics Co., Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of 4 N-Bk7 Precision Window Dia.5mm?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Changchun Sunday Optoelectronics Co., Ltd through EximNext.
What packaging options are available for bulk orders of 4 N-Bk7 Precision Window?
Changchun Sunday Optoelectronics Co., Ltd offers 4 N-Bk7 Precision Window with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 4 N-Bk7 Precision Window the most?
4 N-Bk7 Precision Window is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Changchun Sunday Optoelectronics Co., Ltd through our platform.
What certifications does this 4 N-Bk7 Precision Window supplier hold?
Changchun Sunday Optoelectronics Co., Ltd maintains international quality certifications. These ensure that the 4 N-Bk7 Precision Window meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 4 N-Bk7 Precision Window Dia.5mm on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Changchun Sunday Optoelectronics Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Changchun Sunday Optoelectronics Co., Ltd.
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