Quartz Glass Plate 0.5mm 1mm 2mm Fused Silica Clear
- Thickness: 0.5mm, 1.0mm, 2.0mm (±0.05mm)
- SiO2 Purity: ≥ 99.99%
- Application: Precision Substrates & Sensors
Export-Grade Quartz Catalog
Precision Engineered Quartzware for Vlorë & Balkan Importers
Manufactured from ultra-pure natural quartz silica (≤20 ppm conventional metallic impurities) with tight dimensional tolerances, exceptional thermal stability, and deep UV-to-NIR transmission.
Round Quartz Plate Disc Fused Silica Polished Disc
- Custom Diameters: 10mm to 450mm
- Surface Quality: 60/40 or 40/20 Scratch-Dig
- Application: Optical Ports & Thermal Discs
High-Pressure Quartz Viewport Window Optical Plate
- Working Pressure: Rated up to 25+ MPa
- High Parallelism: < 30 arcsec
- Application: Marine & Petrochemical Reactors
Boiler Quartz Sight Glass Plate Heat Resistant
- Continuous Service: 1100°C (Peak 1350°C)
- Coefficient of Expansion: 5.5 × 10−7 /°C
- Application: Thermal Plants & Marine Boilers
Laboratory Clear Fused Silica Plate Heat Resistant
- Acid Resistance: Except Hydrofluoric Acid
- Chemical Purity: Trace elements < 15 ppm
- Application: University Labs & Quality QA
CNC Machined Complex Geometry Fused Silica Plate
- Milling Tolerance: ±0.02 mm CNC profiling
- Custom Grooves, Holes & Stepped Flanges
- Application: Custom Carrier Boats & Manifolds
Ultra-Thin UV Grade Quartz Photomask Substrate
- Transmission: >90% @ 193nm & 248nm DUV
- Flatness: < 2 μm per 100mm span
- Application: Microelectronics & UV Optics
High-Purity Semiconductor Quartz Wafer Substrate
- Grade: Semiconductor Diffusion / LPCVD
- Heavy Metal Profiling: Fe < 0.2ppm, Cu < 0.05ppm
- Application: CVD Furnaces & Epi-Wafer Carriers
1. Executive Whitepaper: Thermomechanical Dynamics of Quartz Process Tubes
In high-temperature thermal processing, chemical vapor deposition (CVD), and corrosive maritime atmospheres, standard borosilicate or aluminosilicate glasses fail due to thermal hysteresis, thermal shock cracking, and alkali ion migration. Quartz process tubes engineered from high-purity fused silica (SiO2 ≥ 99.99%) offer an extraordinarily low coefficient of thermal expansion (α ≈ 5.5 × 10−7 /°C between 20°C and 1000°C). This characteristic allows process tubes to undergo rapid thermal cycles—such as direct quenching from 1100°C into cold water—without experiencing micro-fracturing or catastrophic mechanical failure.
For industrial operators in the Vlorë port region and broader Albanian manufacturing corridor, the integrity of process tubes is critical. Whether used in high-intensity germicidal UV systems for Adriatic ballast water treatment, petroleum refining distillation monitors, or thermal annealing reactors, the dimensional stability of the tube prevents process contamination and gas leaks under vacuum or positive pressures. Our continuous electric fusion and oxygen-hydrogen flame remelting procedures guarantee exceptional inner and outer diameter roundness, minimal bubble inclusion (Class A ISO 10110 compliance), and virtually zero devitrification seed nuclei.
| Physical / Thermal Property | Fused Quartz Tube (VEZLO Standard) | Standard Borosilicate 3.3 | Significance for Industrial Processes |
|---|---|---|---|
| Silicon Dioxide (SiO2) Purity | ≥ 99.99% | ≈ 81% | Eliminates heavy metal leaching into high-temperature process streams. |
| Continuous Operating Temp | 1100 °C | 450 °C | Allows high-temperature oxidation, annealing, and calcination. |
| Strain / Annealing Point | 1120 °C / 1215 °C | 510 °C / 560 °C | Maintains structural tube geometry under mechanical load at elevated heat. |
| Thermal Shock Resistance (ΔT) | > 1100 °C | ≈ 150 °C | Immunity to rapid furnace loading/unloading and cold airflow. |
| UV Transmittance @ 254 nm | ≥ 88% – 92% | < 5% (Opaque) | Essential for high-output maritime UV disinfection systems. |
| Dielectric Strength (20°C, 1MHz) | 25 – 40 kV/mm | 10 – 15 kV/mm | Superior electrical insulation for high-frequency induction heaters. |
Devitrification control is a core technical consideration when specifying quartz process tubes for prolonged thermal duty above 1000°C. Devitrification involves the polymorphic transformation of metastable amorphous silica into crystalline cristobalite. Cristobalite undergoes an abrupt volumetric inversion (≈ 2.8% volume change) around 200°C to 275°C upon cooling, causing micro-cracking and wall degradation. By strictly containing total alkali metallic impurities (Li, Na, K) below 1.5 ppm, VEZLO process tubes drastically retard cristobalite nucleation, extending operational lifespans up to 300% compared to standard commercial quartzware.
Targeted Regional Utility
Industrial Application Scenarios in Vlorë & Southern Albania
Vlorë stands as a pivotal economic, maritime, and energy gateway in the southern Adriatic basin. Our quartz process tubes and precision glassware address specific localized operating conditions.
Ballast Water & Port UV Disinfection
With the expansion of the Port of Vlorë, Triport cargo facilities, and coastal tourist vessels, IMO (International Maritime Organization) ballast water discharge conventions are strictly enforced. We supply high-transmittance ozone-free and synthetic fused silica UV sleeves (passing 254nm while mitigating solarizing degradation) to ensure zero pathogen release into the pristine Ionian and Adriatic marine ecosystems.
Photovoltaic & Renewable Energy R&D
Southern Albania boasts over 270 sunny days per year, driving heavy investment into utility-scale solar parks across the Fier-Vlorë energy plains. Research institutions and component assembly facilities utilize our large-diameter diffusion process tubes (up to OD 520 mm) for crystalline silicon wafer doping, PECVD passivation, and thermal annealing of emerging perovskite-on-silicon tandem cells.
Petroleum Refining & Offshore Exploration
The Patos-Marinza oilfield complex and coastal storage terminals near Vlorë require ruggedized process monitoring instrumentation. Our high-pressure optical quartz sight glasses and heavy-wall fused quartz sight tubes withstand aggressive sulfidic vapors, high-temperature crude fractionation, and saline sea spray without surface hazing, micro-fissuring, or thermal stress cracking.
Environmental & Marine Analytics Labs
Analytical chemists at the University of Vlorë "Ismail Qemali" and regional environmental monitoring centers rely on our spectrophotometer quartz cuvettes, reaction crucibles, and customized digestion tubes. High chemical purity prevents trace mineral interference during heavy metal analysis (ICP-MS, AAS) of coastal runoff and agricultural water tables.
Industrial Pyrolysis & Waste-to-Energy
As Albania aligns with EU environmental directives regarding municipal and industrial recycling, regional waste-to-energy and pilot biomass gasification reactors deploy transparent quartz tubes for thermal decomposition monitoring, flame emission spectrometry, and sensor protection tubes under operating temperatures exceeding 1050°C.
High-Intensity Halogen & Marine Searchlights
Maritime security, coast guard cutters, and commercial fishing vessels operating from Vlorë Harbor utilize high-wattage metal halide and short-arc xenon lamps. VEZLO manufactures precision-drawn, thermal shock-resistant quartz bulb envelopes that withstand salt encrustation and sudden cold splash without shattering.
2. Macro-Industrial Trends in Vlorë: Modernization & Advanced Materials Demand
The industrial landscape of Vlorë is currently undergoing a structural transformation. Historically known primarily for fishing, small-scale manufacturing, and salt production, the completion of major transportation hubs—including the Vlorë International Airport and expanded Adriatic maritime corridors—is catalyzing advanced manufacturing zones (TEDA - Technological and Economic Development Areas).
Three distinct trends are shaping the procurement of fused quartz in this region:
- Alignment with EU Industrial Standards: As Albania advances its EU accession process, industrial plants must upgrade legacy equipment to meet EN, CE, and ISO directives. This necessitates replacing low-grade borosilicate viewing ports and uncertified process tubes with fully traceable, certified fused silica capable of passing pressure equipment directives (PED 2014/68/EU).
- Green Transition & High-Purity Solar Grade Components: The Albanian National Energy and Climate Plan (NECP) targets massive solar deployment. Localized maintenance, inverter manufacturing, and wafer processing require high-uptime consumables like diffusion tubes, quartz carriers, and paddle assemblies that avoid copper, iron, or nickel poisoning during thermal cycles.
- Deepwater Port Infrastructure & Blue Economy: Increased port automation and offshore cargo handling necessitate robust sensor housings and visual level indicators able to withstand the corrosive combination of Adriatic humidity, high ambient salinity, and extreme summer UV radiation. Fused quartz remains completely unaffected by salt fog corrosion (ASTM B117 standards).
Clear Sourcing Answers
Procurement & Technical FAQ for Albanian Importers
Everything procurement engineers, laboratory heads, and logistics managers in Vlorë need to know about importing precision quartzware directly from China's primary manufacturing cluster.
What are the freight options and transit times from your factory to the Port of Vlorë or Durrës?
We provide seamless multimodal export logistics. For full container loads (FCL) and less than container loads (LCL), ocean shipments depart via Qingdao or Lianyungang ports, sailing through the Suez Canal directly to the Port of Durrës or the Port of Vlorë. Standard ocean transit time is approximately 28 to 35 days. For urgent engineering spares, prototype quartz plates, or laboratory crucibles, we partner with DHL, FedEx, and air freight via Tirana International Airport (TIA) with transit times of 4 to 7 business days.
How do you ensure fragile, large-diameter quartz process tubes arrive intact without micro-cracks?
Quartz tube export protection requires strict engineering packaging. Each individual process tube is wrapped in anti-static, shock-absorbing pearl cotton (EPE), fitted with internal end-caps to prevent rim chipping, and suspended inside heavy-duty honeycomb cartons. For ocean transit to Albania, these are placed within custom-built, fumigation-free plywood crates (ISPM 15 certified) equipped with tri-axial shock and tilt indicator sensors (ShockWatch & TiltWatch). This prevents transit shear stress and ensures zero breakage upon arrival.
What customs documentation and certifications are supplied for Albanian customs clearance (Kodi Doganor)?
Every export shipment includes a complete documentation pack: Commercial Invoice, Packing List with detailed net/gross weights, Bill of Lading (or Airway Bill), Certificate of Origin (CO), Mill Material Test Certificates verifying SiO2 purity (≥99.99%), ICP-MS chemical composition trace data, and dimensional inspection reports. These documents fully comply with the General Directorate of Customs of Albania (Drejtoria e Përgjithshme e Doganave) under HS code headings 7002.31 (quartz tubes) and 7006.00 / 7017.10 (laboratory/optical quartz).
Can VEZLO customize tubes and plates according to existing European machine drawings?
Yes. Over 60% of our production is customized to client CAD drawings (.DWG, .DXF, .STEP, or PDF). We fabricate tubes with ground ball joints, flat flanges, threaded ends, quartz thermocouple wells, and flared rims. Our CNC machining center handles precision tolerances down to ±0.02 mm, providing direct drop-in replacements for European OEM furnace equipment without requiring mechanical modifications on your production lines.
What is the chemical resistance profile of your quartz sight glass in petrochemical settings?
Fused quartz offers extreme resistance to virtually all acids—including hydrochloric, sulfuric, nitric, and organic petroleum fractions—even at elevated temperatures up to 900°C. The only chemicals that attack fused silica are hydrofluoric acid (HF), concentrated hot phosphoric acid above 150°C, and strong alkaline solutions (such as concentrated NaOH/KOH) at boiling temperatures. This makes it significantly superior to standard borosilicate in sulfur-rich petroleum processing facilities.
How do you handle prototype batches versus high-volume industrial blanket orders?
We support flexible procurement strategies. For prototyping or university research in Vlorë, we accept single-piece custom orders to validate fit and performance. For industrial clients with recurring annual demand, we offer blanket purchasing agreements with staged container releases, securing fixed raw material pricing and rapid delivery cycles from our dedicated factory warehouse.
The Manufacturer Edge
Why International Industrial Buyers Choose VEZLO
Operating directly out of Donghai County—globally recognized as "China's Quartz Center"—we combine raw mineral access with state-level technical engineering.
33,000 m² Production Base
Spread over 50-mu in Donghai County with RMB 10 million in fixed manufacturing assets, housing continuous electric melting, gas-refining, and automated cutting workshops.
Provincial S&T Project Recognition
Our 320 mm high-purity quartz tube development was completed under the prestigious Jiangsu Provincial Science & Technology Support Project, validating high-precision wafer processing reliability.
520 mm Large-Diameter Pioneer
Developed next-generation 520 mm large-diameter high-purity quartz tubes, having successfully passed national new product reviews for large wafer thermal oxidation furnaces.
≤2h Technical Response
Dedicated international export engineering desk guaranteeing technical quotation, drawing feasibility checks, and material certifications within two hours of inquiry receipt.
3. Sourcing Protocol: How to Accurately Specify Fused Quartz for Albanian Projects
When requesting quotes for quartz process tubes or optical plates, engineering accuracy prevents costly installation delays. We recommend including the following five parameters in your technical requisition:
- Geometrical Tolerances: Specify Outer Diameter (OD), Inner Diameter (ID), Wall Thickness (WT), and overall length in millimeters. Indicate permissible ovality (± % of OD) and straightness/bow tolerance (≤ 1.5 mm/m is standard).
- Thermal Environment Profile: State the continuous operating temperature, peak thermal excursions, atmospheric composition (reducing, oxidizing, vacuum, or halogen presence), and ramp-up rate (°C/min).
- End-Finishing Configurations: Choose between clean diamond-wheel cut (deburred), fire-polished ends, ground socket/cone joints (standard taper 29/32, 45/40, etc.), flat flanges with O-ring sealing grooves, or domed hemispherical caps.
- Optical Transmission Spectral Window: If the tube or plate serves a photometric purpose, indicate whether deep-UV (193–254 nm), visible (400–700 nm), or near-infrared (800–2500 nm) transparency is primary.
- Hydroxyl (OH−) Content Level: For high-temperature applications above 1050°C, specify low-OH quartz (< 5 ppm) to maximize viscosity and prevent sagging. For UV applications where NIR absorption bands are irrelevant, standard electric fusion quartz (≈ 20–30 ppm OH) offers cost-efficient durability.
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Send your project blueprints, dimensional requirements, or operating specifications directly to our engineering specialists. Receive an authoritative, factory-direct quotation and material feasibility analysis within two hours.
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