Featured OEM/ODM Fused Quartz Glass Plates & Optical Substrates
VEZLO manufactures optical, thermal, and electronic-grade quartz flatware to tight micrometer tolerances. Tailored for analytical laboratories, micro-optics instrumentation, and severe thermal environment viewports across Zurich and Switzerland.
Quartz Plate for Boiler Sight Glass Fused Silica Heat Resistant
Quartz Glass Plate 0.5mm 1mm 2mm Thickness Fused Silica Clear Custom Size
Quartz Fireplace Viewing Glass Plate Heat Resistant Fused Silica
Rectangular Quartz Plate Fused Silica Clear Precision Cut Custom Size
Quartz Viewport Glass Plate Vacuum Chamber Fused Silica Custom Size
Quartz Disc with Groove Fused Silica Plate Clear Polished Custom Size
Quartz Photomask Substrate Plate Fused Silica UV Grade Ultra Thin
Quartz Glass Plate for Optical Window Fused Silica High Transmittance
Serving Zurich's High-Tech Research Hubs & Industrial Clusters
Zurich stands at the center of Europe’s precision engineering, photonics, and quantum technologies. From academic spin-offs around Hönggerberg to industrial manufacturers in Winterthur and Dübendorf, our quartz glass components fulfill exact Swiss specifications.
Quantum Photonics & Academic Physics (ETH Zurich & EMPA)
Zurich is globally renowned for quantum optics, trapped-ion computing, and synchrotron instrumentation. VEZLO supplies synthetic fused silica plates (JGS1) characterized by zero fluorescence and exceptional deep-UV transmission down to 185 nm. Our ultra-flat substrates (flatness λ/4 to λ/10) serve as mirror blanks, beam splitter bases, and optical window ports in ultra-high vacuum (UHV) cryogenic chambers where zero thermal expansion distortion is mission-critical.
MedTech, Flow Cells & Bio-Analytical Diagnostics
With Zurich’s dense biomedical cluster spanning the Greater Zurich Area and neighboring cantons, microfluidics and bio-spectroscopy rely on inert, chemically resilient contact plates. VEZLO custom fabricates polished quartz flow cell covers, micro-grooved analytical chips, and UV-transparent spectrophotometer window plates that endure aggressive solvent sanitization, piranha acid cleaning, and thermal sterilization without optical hazing or leaching.
Precision Watchmaking Tooling & Micro-Machining Viewports
The Swiss horological and micro-mechanics sector demands extreme scratch hardness (Mohs 7) combined with thermal integrity. VEZLO manufactures custom-sized rectangular and circular quartz sight plates for laser ablation centers, vacuum sintering ovens, and wire-EDM monitoring stations. Operating continuously up to 1,100°C with momentary peaks at 1,350°C, our quartz plates protect delicate sensor optics from molten slag and high-power laser back-reflections.
Comparative Physical & Optical Properties of Quartz Grades
Selecting the appropriate quartz grade is vital for Swiss engineers optimizing optical transmission bands against budget parameters. The table below illustrates the material performance distinctions across our synthetic, optical, and thermal quartz plate series.
| Property Parameter | JGS1 (Synthetic Fused Silica) | JGS2 (Optical Fused Quartz) | JGS3 (Infrared Fused Quartz) | Borosilicate Glass 3.3 (Reference) |
|---|---|---|---|---|
| Primary Transmission Range | 185 nm – 2,500 nm (Deep UV) | 220 nm – 2,500 nm (UV-Vis) | 260 nm – 3,500 nm (Vis-NIR) | 310 nm – 2,200 nm |
| SiO₂ Purity Level | ≥ 99.999% (< 5 ppm metals) | ≥ 99.99% (< 20 ppm metals) | ≥ 99.99% (Low OH content) | ≈ 81% (Aluminoborosilicate) |
| Hydroxyl (OH⁻) Concentration | 1,000 – 1,200 ppm (High OH) | 150 – 200 ppm | < 5 ppm (Water-free IR) | N/A |
| Coefficient of Thermal Expansion (CTE) | 5.5 × 10⁻⁷ /°C (0–300°C) | 5.5 × 10⁻⁷ /°C (0–300°C) | 5.5 × 10⁻⁷ /°C (0–300°C) | 33 × 10⁻⁷ /°C (6× higher expansion) |
| Thermal Shock Tolerance (Water Quench) | 1,100°C to 20°C (No fracture) | 1,100°C to 20°C (No fracture) | 1,100°C to 20°C (No fracture) | Max 150°C ΔT shock gradient |
| Refractive Index (nd @ 589.3 nm) | 1.4585 | 1.4585 | 1.4585 | 1.4730 |
| Continuous Safe Operating Temp | 1,100°C | 1,100°C | 1,100°C | ≈ 450°C |
| Typical Local Applications in Zurich | Excimer laser optics, Lithography masks | Vacuum viewports, Furnace windows | FTIR spectroscopy, IR emitters | Low-temperature industrial sight glasses |
Sourcing Trends Shaping Zurich's Advanced Optics & Equipment Industry
Swiss procurement managers and mechanical engineering leaders balance stringent precision compliance with escalating raw material costs and global lead time pressures. Key shifts dominate the current trade interface between Zurich and direct Asian manufacturers.
Supply Chain De-risking & Direct Factory Tier-1 Contracting
Historically, Swiss companies relied heavily on regional European intermediaries, paying high markups for rebranded standard quartz flatware. Forward-thinking procurement teams in Zurich now establish direct factory-level OEM/ODM relationships with primary fabricators like VEZLO. By tapping into the Donghai raw quartz belt while maintaining rigorous incoming quality inspections (CMM and spectrophotometer batch traces), Swiss firms compress procurement costs by 35%–50% without sacrificing DIN/ISO compliance.
Demand for Sub-Nanometer Surface Roughness (CMP Polishing)
With the acceleration of extreme ultraviolet (EUV) and deep ultraviolet (DUV) lithography R&D within Swiss research institutions, standard commercial mechanical polishing is no longer sufficient. Zurich buyers increasingly specify double-sided chemical mechanical planarization (CMP). VEZLO meets this standard, delivering surface roughness values down to Ra < 0.5 nm, total thickness variation (TTV) under 2 µm, and scratch-dig specifications of 20/10 or 10/5 for critical laser transmission paths.
Expedited ZRH Air Freight Logistics & Customs Integration
Swiss engineering projects operate on precision project timelines where prototyping bottlenecks carry heavy financial penalties. Zurich buyers prioritize Asian exporters who can fulfill quick-turn custom CNC grinding and ship directly via temperature-controlled air freight directly into Zurich Airport (ZRH - Kloten). Clear customs documentation, including HS Code classification (7002.31), complete material safety declarations, and wood packaging fumigation (ISPM 15) ensure same-week customs release into Canton Zurich.
Why Zurich Engineering Teams Partner with VEZLO Quartz
Operating from Donghai County—the epicenter of China's quartz refining industry—VEZLO blends primary mineral supply security with state-of-the-art optical fabrication technology. Recognized through provincial science projects and global ISO compliance.
Integrated Mineral Wealth
Direct sourcing from high-purity natural quartz crystal formations, refined in-house to achieve conventional metallic impurity levels ≤ 20 ppm across 13 proprietary sand grades.
State-Backed Innovation
Our 320 mm high-purity quartz tube program was honored as a Jiangsu Provincial Science & Technology Project, joined by 520 mm large-diameter furnace components reviewed as National New Products.
High-Precision Cold Work
Equipped with 5-axis CNC ultrasonic milling, high-speed inner-diameter slicing, double-sided planetary polishing, and precision flame welding for custom stepped viewports and grooved discs.
2-Hour RFQ Turnaround
Our English-speaking quartz engineering desk provides comprehensive manufacturability reviews (DFM), CAD drawings confirmation, and transparent quotation files within 2 business hours.
Ready to Validate Your Custom Quartz Specifications?
Send your CAD drawing (.step, .dwg, .pdf) or optical specifications to our technical team. We guarantee rapid technical feasibility feedback, batch quotation, and material certification support.
Get CatalogFrequently Asked Technical & Logistics Questions for Swiss Buyers
Clear, direct answers regarding customs protocols, metrology validation, thermal limits, and bespoke production for organizations based in Zurich, Basel, and across Switzerland.
How do you guarantee shipping transit safety to Zurich for thin or fragile quartz plates? +
What metrology documentation and inspection certificates accompany each order? +
- Certificate of Conformity (CoC): Attesting to raw material purity (SiO₂ ≥ 99.99%) and thermal properties.
- Dimensional Metrology Report: 100% CMM (Coordinate Measuring Machine) verification of length, width, diameter, thickness, and bevel dimensions.
- Spectrophotometer Transmission Curves: UV-Vis-NIR spectrophotometer verification covering 190 nm to 3,000 nm upon request for optical grades.
- Interferometer Surface Roughness Logs: Zygo laser interferometer phase-shift measurements documenting surface flatness (λ/4, λ/10) and Ra values.
What is the standard lead time for prototyping versus production batch orders to Switzerland? +
Can VEZLO execute complex CNC milling, stepped edges, and custom O-ring grooves? +
How do Swiss customs duties, VAT, and INCOTERMS apply when buying from VEZLO? +
What is the critical difference between synthetic fused silica (JGS1) and natural fused quartz (JGS2) for our Zurich optical lab? +
Empower Your Next Zurich Project with Direct Factory Precision
Whether you require replacement sight glasses for high-temperature chemical reactors, optical viewports for vacuum physics, or sub-millimeter quartz substrates for micro-fabrication, VEZLO delivers unmatched accuracy, speed, and cost efficiency.
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