Quartz Glass Tube Raw Stock Clear Fused Silica Transparent Pipe Blank Custom Length
Optimized for master glassblowing, laboratory manifolds, furnace inner tubes, and high-temperature gas conduits.
2–500 mm
Outer-Diameter Precision Forming
≤ 20 ppm
Total Metallic Impurities in Sand
1,100 °C
Continuous Operating Temperature
≤ 2 Hours
Direct Engineering Response Time
Direct Factory Catalog
High-Purity Fused Quartz Tubes, Plates & Custom Optics
Manufactured under rigorous ISO9001:2015 protocol in Tuofeng Township, Donghai County. All raw billets and custom cut quartz elements meet rigorous European purity and optical specifications.
Drilled Quartz Plate Multi Hole Fused Silica CNC Machined Custom
Sub-micron precision drilled array plates with chamfered orifices for chemical gas dispersion and wafer handling.
Ultra Thin Quartz Plate 0.3mm 0.5mm Fused Silica Optical Grade Clear
Laser-cut and double-side polished flat quartz plates designed for spectroscopic slides, beam splitters, and microfluidics.
Quartz Glass Plate 0.5mm 1mm 2mm Thickness Fused Silica Clear Custom Size
High scratch resistance and thermal shock stability. Widely implemented in furnace inspection viewports and cleanrooms.
Quartz Viewport Glass Plate Vacuum Chamber Fused Silica Custom Size
Ground and polished vacuum chamber viewports tested to withstand differential pressures and elevated thermal cycles.
Square Quartz Plate Fused Silica Sheet Beveled Edge Polished Custom Size
Precision CNC-beveled edges preventing thermal stress cracking. Essential for cleanroom substrates and lithography bases.
Quartz Tube for Ozone Generator High Purity Fused Silica Ozone Free
Titanium-doped or high-purity natural silica blocking 185nm UV or enhancing dielectric barrier discharge (DBD) generation.
Quartz Glass Sheet 10mm 20mm 30mm Thick Fused Silica Heat Resistant
Heavy-gauge thick quartz blocks for continuous heating equipment, structural furnace insulation, and chemical digestion vessels.
Industrial Ecosystem Mapping
High-Purity Quartz Tube Integration Across the Métropole Européenne de Lille
Lille and the Hauts-de-France region represent France's premier manufacturing corridor transitioning into advanced decarbonization, nanotechnologies, and automated e-mobility infrastructure. Precision quartz components provide critical structural stability.
Academic Nanotech & Physical Metallurgy Research
The academic belt surrounding the University of Lille, CNRS IEMN (Institute of Electronics, Microelectronics and Nanotechnology), and Centrale Lille demands highest-purity optical and thermal quartzware. Researchers utilize our fused quartz tubes (OD 2 mm to 500 mm) for chemical vapor deposition (CVD), low-pressure epitaxy, and atomic layer deposition (ALD).
- Hydroxyl (OH) Content Optimization: Controlled below 5 ppm for deep vacuum IR heating, preventing infrared power absorption.
- Substrate Carriers & Quartz Boats: Custom flame-worked quartz carriers preventing crystalline distortion up to 1,200 °C.
- Viewport Enclosures: Precision ground vacuum viewport discs certified for spectroscopy with transmission > 92% across 200–2,500 nm.
"Battery Valley" Gigafactories
Across Douai, Dunkirk, and Billy-Berclau near Lille, lithium cell manufacturers install our thermal shock-resistant quartz furnace liners and pyrometry sight tubes for cathode sintering furnaces requiring zero trace-metal leaching.
Industrial Water & Effluent Decontamination
Textile, chemical, and municipal water purification facilities along the Deûle and Lys rivers rely on our ozone-free quartz sleeves and high-transmission 254 nm germicidal tubes for automated ballast disinfection systems.
Continuous Glass & Metallurgy Processing
Heavy industry and specialized glass casting clusters throughout Hauts-de-France utilize VEZLO transparent crucibles, pyrometry protection tubes, and 10–30 mm heavy quartz plates for continuous thermal isolation at 1,150 °C.
Procurement Intelligence
Engineering Specifications: Fused Quartz vs. Synthetic Silica
Procurement teams in Northern France frequently balance thermal coefficient requirements against deep UV optical transmission. Our technical team guides material selection based on raw SiO2 refinement.
| Performance Characteristic | Electric Melt Clear Quartz (VEZLO Standard) | Ozone-Free UV Quartz Tube | Synthetic Fused Silica (Optical Grade) |
|---|---|---|---|
| Primary Raw Material | Donghai Natural Crystal Sand (≤20 ppm metals) | Doped High Purity Silica Powder | Silicon Tetrachloride (SiCl4) Vapor Synthesized |
| SiO2 Purity Rating | ≥ 99.99% | ≥ 99.98% | ≥ 99.9999% |
| Continuous Service Temperature | 1,100 °C (Peak 1,280 °C) | 1,050 °C (Peak 1,200 °C) | 950 °C (Peak 1,150 °C) |
| Spectral Transmission Profile | 260 nm – 3,500 nm (> 90%) | Absorbs 185 nm, Transmits 254 nm | 180 nm – 2,500 nm Deep UV Optimized |
| Thermal Expansion (0–300 °C) | 5.5 × 10⁻⁷ / °C | 5.5 × 10⁻⁷ / °C | 5.2 × 10⁻⁷ / °C |
| Comparative Cost Advantage | Benchmark Baseline (Lowest Factory Direct) | +15% to 25% Premium | +250% to 400% Premium |
Factory Verifiable Capabilities
Why International Buyers Partner with VEZLO Quartz
Combining primary mineral reserves from Donghai County with cutting-edge academic engineering to deliver repeatable, high-tolerance quartzware across the globe.
Mineral Source Control
Situated in China's quartz hub with a 50-mu (33,000 m²) integrated facility and RMB 10 million in fixed assets, we purify raw sands down to ≤20 ppm total metallic impurities before secondary furnace drawing.
Provincial Key R&D Recognition
Our 320 mm high-purity quartz tube development was completed under the Jiangsu Provincial Science & Technology Support Project. Our newly developed 520 mm large-diameter tube is under active review for national innovation status.
Extreme Precision Machining
Multi-axis CNC drilling, slotting, precision optical polishing, ultrasonic cleaning, and artisanal oxy-hydrogen flame welding allowing tolerances up to ±0.05 mm for aerospace and wafer handling.
Zero-Breakage Export Packaging
Every shipment bound for Europe is individually encased in shock-absorbing EPE pearl foam, suspended inside dual-wall fluted cartons, and palletized in ISPM-15 fumigation-free solid plywood export crates.
2-Hour Engineering Window
Our dedicated European trade and technical support team handles CAD drawings, STEP files, and material certificates (RoHS, REACH) with an average response time under 2 hours, sustaining a 50% repeat procurement rate.
Direct Customs & DDP Logistics
Full support for European DAP and DDP shipping terms to Lille-Lesquin, Port of Dunkirk, or Antwerp hubs, resolving import tariff classifications and documentation directly for French industrial customers.
Procurement & Technical FAQ
Frequently Asked Questions by Industrial Buyers in France
Clear, direct specifications, lead times, export protocols, and operational tolerances for engineering and purchasing departments in Lille.
What dimensional ranges and wall tolerances are feasible for quartz tubes?
VEZLO standard production covers outer diameters (OD) from 2 mm to 500 mm with continuous continuous drawing lines. For custom furnace liners, we manufacture up to 520 mm OD. Standard diameter tolerance is within ±0.2 mm to ±0.5 mm depending on size, with precision grinding available to achieve ±0.05 mm on critical vacuum tube joints.
How does VEZLO protect fragile quartz tubes during transit to Hauts-de-France?
Fragility is managed through custom structural shock mitigation. Components are wrapped in anti-static PE film, nested in shaped high-density pearl cotton (EPE), sealed in moisture-proof secondary containers, and secured in heavy-duty fumigation-free wooden cases reinforced with internal struts. We guarantee 100% replacement in the rare event of transit damage.
Can you manufacture according to proprietary CAD, STEP, or PDF engineering drawings?
Yes. Approximately 70% of our orders are OEM/ODM to custom technical blueprints. Our Donghai processing facility features fully automated multi-hole CNC drilling centers, cylindrical grinding, edge beveling, and certified master flame-working artisans capable of producing complex quartz manifolds, flanges, flared ends, and ground taper joints.
What is the difference between standard clear quartz and ozone-free quartz tubes?
Clear fused quartz allows optical transmission down to 200 nm, emitting the 185 nm wavelength which reacts with atmospheric oxygen to generate ozone. Ozone-free quartz is specifically doped with trace metal oxides (such as Titanium) that selectively block the vacuum UV line (≤220 nm) while maintaining over 85% transmission at the germicidal 253.7 nm UV band.
What are the typical lead times and shipping options for deliveries to Lille?
Standard raw tubing stock can ship within 5 to 7 business days. Custom CNC machined plates, slotted tubes, or welded vessels typically require 2 to 3 weeks. Urgent prototypes are delivered via express air (DHL, FedEx, UPS) to Lille within 4 to 6 business days; large volume batches are routed via Rotterdam, Antwerp, or Dunkirk ports within 28 to 35 transit days.
What certificates of compliance and quality records accompany each shipment?
Every commercial consignment includes our Factory Certificate of Inspection (COA), chemical spectral impurity reports verifying trace metals (≤20 ppm), RoHS and REACH declaration letters, and dimensional dimensional inspection protocols checked against your engineering tolerances.
Accelerate Your Project with China's Premier Fused Quartz Maker
Direct from the heart of Donghai's quartz capital to your production floor in Lille and greater France. Send your drawings or technical requirements to receive a complete quotation and engineering review within 2 hours.
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