Factory-direct fused silica solutions engineered to rigid dimensional tolerances, optical clarities, and extreme thermal resilience for advanced R&D and serial manufacturing in Uppsala County.
Uppsala occupies an elite position within Scandinavia's knowledge economy. Driven by institutions like the Ångström Laboratory at Uppsala University, the Uppsala Science Park, and Sweden's world-leading bioprocessing clusters, engineering demands for inorganic vitreous materials far exceed typical industrial glass standards. For project directors, procurement specialists, and cleanroom lab managers across Uppsala, procuring high-performance clear quartz tubes requires strict verification of raw material provenance, crystalline phase purity, hydroxyl (OH) radical density, and dimensional repeatability.
VEZLO Quartz operates as a primary manufacturer and global fabricator, providing research laboratories and industrial facilities in Uppsala with seamless factory-direct access to ultra-pure fused quartz products. By controlling the complete transformation cycle from raw silica beneficiation to continuous electrical fusion and sub-millimeter glass lathe machining, our supply model bypasses multiple layers of Nordic brokerage markups. The result is uncompromised metallurgical traceability compliant with EU REACH, RoHS, and ISO 9001 standards delivered directly to your dock door in Uppsala.
Every clear quartz tube fabricated for delivery to Sweden undergoes standardized spectrochemical analysis. Below are the verified operational parameters governing our semiconductor and laboratory-grade transparent fused silica tubes.
| Physical / Chemical Parameter | Certified Value | Test Standard / Condition | Engineering Relevance for Uppsala Applications |
|---|---|---|---|
| SiO2 Purity | ≥ 99.99% (Electronic Grade ≤ 99.998%) | ICP-OES / GD-MS Analysis | Mitigates ionic contamination in semiconductor diffusion & biopharma catalysts. |
| Coefficient of Thermal Expansion (CTE) | 5.5 × 10-7 cm/cm·°C | 20°C to 320°C Dilatometry | Near-zero thermal expansion prevents catastrophic failure under rapid thermal cycles. |
| Continuous Maximum Service Temperature | 1100 °C | Atmospheric Furnace Continuous | Essential for LPCVD, oxidation furnaces, and high-temp tube reactors. |
| Softening Point | 1683 °C | ASTM C338 Standard | Guarantees dimensional stability without sagging during high-temp processing. |
| Annealing Point | 1215 °C | ASTM C336 Standard | Relieves all internal mechanical stresses generated during hot-forming & cutting. |
| Refractive Index (nD) | 1.4585 | λ = 589.3 nm (Sodium D line) | Provides high optical coherence for UV spectroscopy and laser vision flow cells. |
| Spectral Transmission (UV to Near-IR) | > 90% (from 220 nm to 2500 nm) | Spectrophotometer T% (10 mm path) | Maximized photon efficiency for UV germicidal disinfection and photochemistry. |
| Dielectric Strength | 25–40 kV/mm | 20 °C, 1 MHz Frequency | Provides total dielectric breakdown protection in RF plasma chambers and sensors. |
Clear quartz tubing serves as a core enabling component across four pivotal sectors driving the greater Uppsala regional economy.
Uppsala is universally recognized as the global cradle of liquid chromatography and protein purification. Our clear quartz tubes with precision inner bore grinding (±0.01 mm) serve as pressure-resistant columns, optical sight tubes, and preparative HPLC detection cells. High chemical inertness prevents protein adsorption, while absolute chemical neutrality against aggressive sanitization cycles (e.g., 1M NaOH, hot organic solvents) ensures stable biomanufacturing workflows.
Within cleanroom environments such as the Ångström Microstructure Laboratory, our high-purity quartz furnace tubes (OD 100 mm to 520 mm) provide the required thermal envelope for silicon wafer oxidation, planar diffusion, and Low-Pressure Chemical Vapor Deposition (LPCVD). Low total alkali impurities (Na, K, Li ≤ 1.5 ppm) prevent junction breakdown and gate oxide degradation in sub-micron semiconductor structures.
For municipal water infrastructure around Lake Mälaren, Fyrisån research monitoring, and biotech water-for-injection (WFI) loops, clear quartz sleeves must transmit germicidal ultraviolet radiation at 254 nm with zero solarization degradation. We offer both synthetic fused silica and ozone-free quartz tubes doped with cerium or titanium to block short-wavelength 185 nm radiation, preventing ozone creation where undesirable.
Analytical chemists in environmental and forensic testing across Uppsala County rely on our clear fused quartz tubes for combustion analyzers, ICP torches, microwave digestion sleeves, and infrared radiant heater shields. The material's thermal shock resilience allows cold samples to be instantly injected into +1000 °C digestion zones without risk of acoustic shatter or micro-cracking.
Uppsala materials science teams deploy quartz glass jackets as envelopes for short-arc xenon lamps, high-power halogen infrared heaters, and vacuum viewports. Our optical finishing guarantees parallel transmission with minimal wavefront distortion, making them suitable for non-contact infrared pyrometer sight glasses and laser cavity flow pipes.
Sourcing quartz components from VEZLO Quartz connects Uppsala engineering programs directly to China's premier silica basin in Donghai County, Jiangsu Province. Our industrial capabilities provide buyers with structural advantages that conventional distributors cannot replicate.
VEZLO Quartz operates an advanced 50-mu (≈33,000 m²) production base backed by over RMB 10 million in fixed capital assets. Unlike secondary fabricators who purchase pre-drawn stock from third-party suppliers, we operate continuous electric and gas fusion drawing towers. We refine our own high-purity quartz sand across 13 proprietary grades, yielding raw materials with total conventional metallic impurities ≤ 20 ppm.
This mineral-level control directly prevents common quartz fabrication defects: micro-bubble chains, airlines, inclusions, and premature high-temperature devitrification (cristobalite crystal growth). Our heavy R&D commitment—exceeding RMB 5 million annually—underpins milestones such as the Jiangsu Provincial Science & Technology Support Project (320 mm furnace tubes) and our breakthrough 520 mm large-diameter high-purity quartz tubes for next-generation semiconductor oxidation and diffusion chambers.
From thin capillary tubing (OD 2 mm) to massive industrial reaction furnace liners (up to 520 mm), our dimensional capability accommodates virtually any thermal or structural footprint.
Equipped with computerized glassblowing lathes, our technicians execute domed closures, flared ends, standard ground taper joints (NS/ST), KF/ISO vacuum flanges, and multi-port furnace manifolds.
Every shipment bound for Stockholm-Arlanda (ARN) and Uppsala is packed with custom-molded high-density EPE foam inside fumigation-free wooden crates, backed by Alibaba Onsite-Verification and Trade Assurance.
Common inquiries from engineering leads, lab procurers, and technical buyers across the Uppsala-Stockholm high-technology corridor.
To ensure accurate cost quotation and engineering review within our 2-hour SLA, please include the following parameters in your technical requisition:
Outer Diameter (OD), Inner Diameter (ID) or Wall Thickness (WT), total length (L), and acceptable dimensional deviations (e.g., ±0.1 mm vs. standard DIN ISO 2768-m).
Specify raw diamond cut, ground flat, fire-polished, flat closed, hemispherical closed, flared, or fitted with ground taper joints and standard flanges.
Commercial clear grade, low-OH semiconductor grade, ozone-free UV-blocking (titanium-doped), or synthetic deep-UV transparent fused silica.
Continuous and peak working temperatures, ramp rates (°C/min), vacuum level (mbar) or internal pressure, and chemical atmosphere (acid vapor, plasma, fluorine exposure).
Prototype R&D quantities (1–10 pcs) versus volume serial production (1,000+ pcs), along with specific QA/QC reporting and labeling requirements.
Whether you are developing prototype chromatography reactors at Uppsala Science Park or maintaining high-throughput furnace lines, our engineers evaluate technical drawings and provide feasibility feedback within 2 hours.