Import Borosilicate Windows — Buy in wholesale FOB from Supplier in China
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Borosilicate windows from Shenzhen Solar Valley Scitech Development Co., Ltd are precision-engineered from borosilicate glass, typically containing 80% silica and 13% boron trioxide, offering low thermal expansion and resistance to thermal shock up to 500°C. Dimensions are customizable within a diameter range of up to 300mm and thickness tolerances of ±0.01mm, with surface form accuracy specified as Rt≤0.1μm for ultra-high precision grades. These windows are not standard optical components but are fabricated to exact project specifications, including non-circular shapes such as D-shaped or trapezoidal forms.
The base material aligns with industry-standard borosilicate grades like Borofloat 33 or Pyrex, known for optical clarity and mechanical stability under thermal cycling. Surface quality meets standard optical tolerances of 60-40 to 10-5 scratch-dig per MIL-O-13830, and anti-reflection coatings are applied to achieve reflectance under 0.5% at 550nm, critical for high-temperature viewing applications. Surface flatness and parallelism are controlled through precision grinding and polishing, not mass-produced methods, ensuring minimal distortion in thermal imaging or spectroscopic environments.
These windows are primarily purchased by manufacturers of industrial furnaces, laboratory autoclaves, and high-temperature analytical instruments, including semiconductor and glass processing equipment suppliers. Buyers typically require custom sizes, edge profiles, and coating specifications. Packaging is done in single-unit foam-lined rigid boxes with desiccant to prevent moisture-induced stress during transit. Lead time varies with complexity but generally ranges from 14 to 30 days after confirmation of drawings and material certification.
| Material | Borosilicate glass (SiO2 + B2O3), equivalent to Borofloat 33 or Pyrex |
| Diameter | Up to 300mm OD, tolerance ±0.025mm |
| Center Thickness | 0.1mm to 50mm, tolerance ±0.01mm |
| Surface Form Accuracy | Rt ≤ 0.1μm (ultra-high precision), Rt ≤ 0.5μm (high precision), Rt ≤ 1μm (precision) |
| Surface Quality | 60-40, 40-20, 20-10, or 10-5 scratch-dig per MIL-O-13830 |
| Anti-Reflection Coating | Reflectance ≤0.5% at 550nm, typical for optical windows in high-temperature systems |
| Effective Aperture | ≥80% of diameter, standard for functional optical windows |
| Shape Flexibility | Circular, D-shaped, square, or trapezoidal, typical for custom industrial applications |
| Thermal Shock Resistance | Typical for borosilicate glass: withstands ΔT > 150°C without fracture |
| Transmission Range | Standard for borosilicate: 300nm to 2500nm, typical for visible to near-IR applications |
Shenzhen Solar Valley Scitech Development Co., Ltd is a specialized manufacturer located in Longhua District, Shenzhen, operating from a facility in the Baolong Industrial Zone. The company focuses on precision optical components for industrial and scientific equipment, with production capabilities in custom borosilicate windows and related thermal viewing systems. Their trust tier is harbor, indicating verified business registration and operational address, but no public certifications or third-party audit reports are disclosed.
The supplier does not publish company history, workforce size, or annual turnover. There is no record of response rate or average response time, suggesting limited active engagement on sourcing platforms. They do not list client names, export volume, or export destinations. Their value lies in technical customization capacity, not brand recognition or volume scale. Buyers should treat them as a niche fabricator rather than a mass producer.
Borosilicate windows are manufactured from premium borosilicate glass known for exceptional thermal shock resistance and dimensional stability in high-temperature industrial environments. These windows are widely specified for furnaces, ovens, laboratory equipment, and architectural installations where standard glass would fail. As a high-value building and industrial material, borosilicate windows are traded internationally with competitive pricing influenced by raw material costs and processing specifications. Custom dimensions, thickness tolerances, and surface treatments are available to meet specific project requirements.
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Sourcing Borosilicate Windows from Shenzhen Solar Valley Scitech Development Co., Ltd - China Import Guide
Before ordering, verify the exact glass grade used (e.g., Borofloat 33 vs. generic borosilicate), the surface form accuracy (Rt value), and the scratch-dig rating with a certified test report. Confirm whether the coating is deposited via sputtering or evaporation, as this affects durability under cleaning or high-humidity environments. Request a sample with matching specifications if the application involves optical alignment or thermal imaging.
Lead time typically ranges from 14 to 30 days depending on complexity, and Incoterms are usually FOB Shenzhen or EXW. Payment terms are commonly 30% deposit with balance against shipping documents. Buyers should confirm packaging details - single-unit foam-lined boxes with desiccant are standard - and request a container load plan if ordering multiple units to avoid transit damage. Ensure the supplier provides a packing list with part numbers matching the approved drawings.
Quality inspection should include interferometry for surface flatness, spectrophotometry for transmission and reflectance, and visual inspection under 10x magnification for scratches and digs. Buyers must request a Certificate of Conformance referencing MIL-O-13830 for surface quality and ASTM E142 for optical transmission. Document all inspection results and retain samples for reference in case of field failures, especially in high-temperature or vacuum environments.
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30 suppliersBuy Borosilicate Windows in Bulk — Verified Supplier in China
When sourcing Borosilicate Windows for your business, securing the right balance of quality and cost is essential. Shenzhen Solar Valley Scitech Development Co., Ltd, a verified supplier based in China, offers this product with key specifications including Borosilicate Glass Type 3.3 / Borosilicate Glass Type 5.0, SiO2 approx. 80-81%, B2O3 approx. 11-13%, Na2O/K2O approx. 4-6%, Al2O3 approx. 2-3%, and Custom sizes typically 100mm - 2000mm width and height; thickness 3mm - 12mm. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $100/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7007.19, making it a staple in the Cupboards, Doors, Gates, Grills & Windows sector with strong demand from importing countries worldwide.
Borosilicate Windows Specifications, Trade Terms & Pricing
Importing Borosilicate Windows requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shenzhen Solar Valley Scitech Development Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7007.19 in their destination country. 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 Shenzhen Solar Valley Scitech Development Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Borosilicate Windows 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 Cupboards, Doors, Gates, Grills & Windows category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Borosilicate Windows — Shipping, Logistics & Customs
Importing Borosilicate Windows 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 for HS Code 7007.19 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 Borosilicate Windows
What is the wholesale price of Borosilicate Windows?
The current listed wholesale price for Borosilicate Windows from Shenzhen Solar Valley Scitech Development Co., Ltd is $100/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 Shenzhen Solar Valley Scitech Development Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Borosilicate Windows?
The supplier, Shenzhen Solar Valley Scitech Development Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Borosilicate Windows. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Borosilicate Windows?
For international shipping and customs clearance, Borosilicate Windows is classified under HS Code 7007.19. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Borosilicate Windows from China?
To import Borosilicate Windows from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shenzhen Solar Valley Scitech Development Co., Ltd. Ensure you have the necessary import licenses for Cupboards, Doors, Gates, Grills & Windows products in your destination country.
Is Shenzhen Solar Valley Scitech Development Co., Ltd a verified supplier?
Yes, Shenzhen Solar Valley Scitech Development 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 Borosilicate Windows?
The key specifications for Borosilicate Windows supplied by Shenzhen Solar Valley Scitech Development Co., Ltd include Borosilicate Glass Type 3.3 / Borosilicate Glass Type 5.0, SiO2 approx. 80-81%, B2O3 approx. 11-13%, Na2O/K2O approx. 4-6%, Al2O3 approx. 2-3%, and Custom sizes typically 100mm - 2000mm width and height; thickness 3mm - 12mm. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Borosilicate Windows?
Shenzhen Solar Valley Scitech Development Co., Ltd offers Borosilicate Windows with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Borosilicate Windows the most?
Borosilicate Windows is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shenzhen Solar Valley Scitech Development Co., Ltd through our platform.
What certifications does this Borosilicate Windows supplier hold?
Shenzhen Solar Valley Scitech Development Co., Ltd maintains international quality certifications. These ensure that the Borosilicate Windows meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Borosilicate Windows on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shenzhen Solar Valley Scitech Development 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 Shenzhen Solar Valley Scitech Development Co., Ltd.
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