Import Bk7 B270 Optical Glass Window — Buy in Bulk from Supplier in China
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BK7 B270 Optical Glass Window
The BK7 B270 Optical Glass Window from Worldhawk Optics is a flat, parallel-sided optical component made from borosilicate crown glass, commonly used for laser beam isolation and sensor protection. The material grade is Schott BK7, with a refractive index of 1.517 at 587.6 nm and a transmission range of 350 nm to 2000 nm. The standard thickness is 3 mm, though custom thicknesses up to 25 mm are available upon request.
Surface quality is rated at 10/5 per MIL-PRF-13830B, with flatness tolerance of λ/20 at 632.8 nm. Parallelism is maintained at 10 arc seconds, ensuring minimal beam deviation. Anti-reflection coatings are offered as single-layer or multi-layer options, with transmission efficiency exceeding 99% per surface at specified wavelengths. The glass is free of bubbles, striae, and inclusions to optical grade standards.
These windows are used in laser systems, infrared detectors, imaging lenses, and spectroscopy equipment. Buyers include industrial manufacturers, research labs, and defence contractors. Packaging is in anti-static, foam-lined containers with humidity control. Trade terms are typically FOB Changchun, with lead times of 2 to 4 weeks. Minimum order quantities are not stated but are typically one unit for standard sizes.
| Material | Borosilicate crown glass, Schott BK7 |
| Refractive index | 1.517 at 587.6 nm |
| Transmission range | 350 nm to 2000 nm |
| Surface quality | 10/5 per MIL-PRF-13830B |
| Flatness | λ/20 at 632.8 nm |
| Parallelism | 10 arc seconds |
| Standard thickness | 3 mm, typical for this application |
| Coating options | Single-layer or multi-layer AR coating, standard for optical windows |
| Surface flatness tolerance | λ/20, standard for precision optical components |
| Edge finish | Bevelled or polished, typical for handling and mounting |
Worldhawk Optics is located at No. 6116, Ji-Lin Road, Changchun, Jilin Province, China. The company is registered as a manufacturer of optical components, with no public disclosure of workforce size, revenue, or client list. Their trust tier is classified as harbor, indicating basic verification of business registration and physical address.
The supplier does not provide certifications such as ISO 9001 or ISO 13485, nor do they list any test reports for optical performance. No response rate or contact history is available. Buyers should treat this as a direct manufacturer without documented quality assurance processes and must validate specifications through independent testing before integration into critical systems.
| 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 BK7 B270 Optical Glass Window from Worldhawk Optics - China Import Guide
Verify the optical specifications before ordering: request an interferogram for flatness, a transmission curve for coating performance, and a certificate of material origin. Confirm the exact dimensions and tolerance stack-up, especially if integrating into existing optical assemblies. Do not assume standard thickness or coating unless explicitly confirmed in writing.
Lead time is typically 2 to 4 weeks for standard sizes, but custom orders may take 6 to 8 weeks. Confirm Incoterms - FOB Changchun is standard, but DAP or EXW may be negotiable. Payment terms are not stated; common practice is 50% advance with balance against shipping documents. Always request a packing list with serial numbers or batch IDs for traceability.
Upon receipt, inspect for surface scratches, coating defects, and edge chips under controlled lighting. Use a spectrophotometer to validate transmission at target wavelengths. Store in a dry, dust-free environment. Retain a sample for future comparison. For critical applications, conduct a laser damage threshold test before full deployment. Document all inspection results for quality audit purposes.
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30 suppliersBuy & Import Bk7 B270 Optical Glass Wi — Wholesale Supply from China
Securing a reliable supply chain for Bk7 B270 Optical Glass Window is critical for maintaining your business operations. Worldhawk Optics, a verified supplier located in China, provides high-quality Bk7 B270 Optical Glass Wi ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Window Films & Screens industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Bk7 B270 Optical Glass Wi from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Worldhawk Optics. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
About Worldhawk Optics — Verified Supplier in China
We understand that verifying supplier credentials is a top priority for importers. Worldhawk Optics is part of our extensive network of vetted international exporters. Browse more products in the Window Films & Screens category or discover new suppliers across the Window Films & Screens sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.
International Shipping & Import Guidelines for Bk7 B270 Optical Glass Wi
When importing Bk7 B270 Optical Glass Wi from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Bk7 B270 Optical Glass Wi
How can I get the wholesale price for Bk7 B270 Optical Glass Window?
Click the "Request Quotation" button to contact Worldhawk Optics directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Bk7 B270 Optical Glass Wi in bulk from China?
Yes, Worldhawk Optics provides Bk7 B270 Optical Glass Wi for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Worldhawk Optics. Contact the supplier to discuss the best logistics options for importing Bk7 B270 Optical Glass Wi to your country.
How do I request a sample of Bk7 B270 Optical Glass Window?
Send a direct message to Worldhawk Optics through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Worldhawk Optics is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Bk7 B270 Optical Glass Wi?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Worldhawk Optics.
Does Worldhawk Optics offer custom packaging or private labeling?
Many suppliers on EximNext, including Worldhawk Optics, offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
Can I find more Window Films & Screens suppliers on EximNext?
Yes, EximNext hosts a wide network of verified Window Films & Screens manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Worldhawk Optics for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our online B2B marketplace.
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