Lab Glassware
Transparent Quartz Glass Twin Tube Bottom Flask
Thermal shock resistant up to 1200°C. Custom bent and flame-welded for fractional distillation, solvent synthesis, and chemical assay laboratories.
Export Catalog · Verified Specifications
Featured High-Purity Quartz Glass Components
Direct manufacturer supply from Donghai County, China to Naypyidaw, Yangon, and Mandalay. Every component undergoes laser finishing, stress annealing, and spectrographic verification.
Thermal Exchange
Custom U-Bent Quartz Glass Spiral Tubes
Precision CNC helical bending with continuous flame annealing. Ideal for corrosion-resistant heat exchange and inline UV sterilization conduits.
Analytical Optics
Circular Fused Quartz XRD Sample Holder
Ultra-low background diffraction baseline, surface parallelism < 3 arcmin, optical clarity for crystallographic characterization and geology labs.
Medical Grade
99.99% Pure Ozone-Free Quartz Ampoules
High-pressure resistance with hermetic flame sealability. Chemically inert against aggressive pharmaceutical solutions, hydrolytic Class I certified.
Furnace & Boiler
Transparent High-Pressure Quartz Furnace Tube
Continuous duty rating at 1100°C (short peaks up to 1300°C), thick wall uniformity, low OH content for vacuum CVD and metallurgical pyrolysis furnaces.
Precision Optics
Optical Grade Clear Quartz Cylinders & Windows
JGS1 synthetic fused silica substrate with >90% transmission across UV-VIS (185–2500 nm). Excellent mechanical strength for harsh field viewports.
Diffusion & Shielding
High-Temperature Frosted Fused Quartz Disc
Micro-sandblasted diffuse surface for uniform thermal distribution and infrared heating baffling. CNC cut to tight radius ±0.05 mm tolerances.
CVD & Etch
Coated 99.99% Pure Quartz Rings & Flanges
Specialized anti-reflective or dielectric coatings. Ultra-pure raw silica with trace metals < 15 ppm, engineered for semiconductor and cleanroom applications.
99.99%
SiO₂ Purity
Ultra-low metallic and hydroxyl trace contaminants
≤2h
Engineering Response
Fast DFM drawing review by certified glass masters
43%
Repeat Order Rate
Verified customer retention across international buyers
±0.02mm
Machining Tolerance
Laser grooving, core drilling, and CNC edging precision
White Paper Briefing
High-Purity Fused Silica Engineering: Material Grades and Thermomechanical Integrity
In precision engineering, selecting the appropriate vitreous silica grade is decisive for component longevity, optical throughput, and vacuum hermeticity. Zunex Quartz Products Co., Ltd., operating from China's crystalline mineral capital in Donghai County, utilizes ultra-refined natural pegmatite quartz sand alongside chemical vapor deposition synthetic silicon precursors to yield glassware that withstands extreme metallurgical, electrical, and chemical challenges.
Unlike standard borosilicate or aluminosilicate glasses that distort above 550°C, fused quartz is composed entirely of continuous, random tetrahedral silicon dioxide ($SiO_2$) networks. This structural purity endows our quartz glass with an exceptionally low mean linear coefficient of thermal expansion ($\alpha = 5.5 \times 10^{-7}\ \text{K}^{-1}$ between 20°C and 320°C), enabling components to undergo instantaneous thermal shocks of more than 1000°C into cold water quenching without microscopic micro-cracking or structural catastrophic fatigue.
| Physical / Chemical Property | JGS1 (Synthetic Silica) | JGS2 (Fused Natural Quartz) | JGS3 (Low-OH Infrared Silica) |
|---|---|---|---|
| Primary Transmission Band | 185 nm – 2,500 nm (Deep DUV) | 220 nm – 2,500 nm (Standard UV-VIS) | 260 nm – 3,500 nm (Extended IR) |
| Hydroxyl ($OH^-$) Content | < 1,200 ppm (Hydrated DUV) | < 30 ppm – 150 ppm | ≤ 5 ppm (Anhydrous IR) |
| Softening Point ($\log \eta = 7.6$) | 1,600°C – 1,650°C | 1,683°C | 1,680°C |
| Continuous Operating Temp | 1,050°C | 1,100°C | 1,150°C |
| Dielectric Constant ($\epsilon$ at 1 MHz) | 3.75 | 3.80 | 3.78 |
| Vitreous Purity ($SiO_2$) | ≥ 99.999% | ≥ 99.99% | ≥ 99.995% |
Regional Industrial Relevance
Custom Quartz Glass Applications Across Naypyidaw & Myanmar
Naypyidaw serves as the administrative, metrological, and institutional center of Myanmar, orchestrating extensive geological assays, national grid solar deployments, agricultural science development, and heavy industrial quality control.
Geological Assay & Gemological Spectrometry
As Myanmar’s gem and mineral regulatory epicenter, Naypyidaw testing authorities require ultra-flat quartz XRD sample holders and optical cuvettes. With negligible X-ray scattering interference and high UV transmission, our fused quartz parts allow uncorrupted crystallographic differentiation of jadeite, ruby, and complex rare-earth mineral specimens.
Solar PV Ingot & Cell Manufacturing Upgrades
Central Myanmar's Dry Zone (including the Mandalay-Naypyidaw corridor) hosts major utility-scale photovoltaic initiatives. We supply large-diameter quartz furnace diffusion tubes (up to 450 mm OD), wafer carriers, and pyrometer observation sight glasses designed to endure thermal stresses inside multi-crystalline and mono-Si silicon wafer doping furnaces.
Agricultural Research & Soil Chemistry Analysis
The Department of Agricultural Research (DAR) based in nearby Yezin (Naypyidaw Union Territory) utilizes our quartz digestion flasks, twin tubes, and Kjeldahl distillation setups. Fused quartz exhibits zero leaching of boron, arsenic, or heavy metals, protecting trace nutrient and contaminant measurements from false positives.
Pharmaceutical & Bioprocess Quality Control
National health laboratories in Naypyidaw monitor pharmaceutical sterility and formulation stability using our medical-grade quartz ampoules and high-pressure autoclave sight glass discs. Their chemical resistance to hydrofluoric-excluded acids prevents ionic dissolution and maintains pure pH neutrality.
High-Voltage Power Grid Dielectric Insulators
Myanmar's Ministry of Electric Power oversees high-voltage cross-state transmission lines converge in Naypyidaw. We engineer custom fused quartz dielectric sleeves, standoff rods, and high-temperature arc shields that preserve electrical insulation exceeding $10^{18}\ \Omega\cdot\text{cm}$ at ambient room temperatures.
Industrial Water Disinfection & Aquaculture
For large-scale water treatment along the Sittaung River basin and Naypyidaw municipal reservoirs, we export heavy-wall, ozone-free or ozone-generating quartz sleeves with >90% transmission at 253.7 nm UV-C germicidal wavelengths, engineered for tropical humidity and high pressure.
Procurement Intelligence
Emerging Procurement Trends and Cross-Border Supply Chain to Naypyidaw
Procurement patterns among Myanmar governmental entities, private processing mills, and international joint ventures are rapidly pivoting toward direct-from-source factory partnerships in China. Historical intermediaries in third-country hubs introduced unnecessary markups, 6- to 8-week delays, and compounded breakage risks during transshipment. By working directly with our Donghai manufacturing hub, buyers in Naypyidaw obtain tailored engineering support, custom CAD verification, and factory-direct pricing.
Logistical continuity is critical when shipping brittle vitreous materials across international borders. Zunex coordinates two primary freight channels into Naypyidaw:
Air Express Expedited (NYT / RGN)
Designed for urgent lab replacements, XRD holders, and optical quartz plates. Cargo flies from Lianyungang / Shanghai to Naypyidaw International Airport (NYT) or Yangon (RGN) with customs clearance expedited via pre-validated packing manifests, taking 4 to 7 working days.
China-Myanmar Economic Corridor (Land Line)
Overland trucking through Yunnan (Kunming to Ruili – Muse Border Gate), routed directly down the Mandalay highway to Naypyidaw. Cost-effective for heavy-wall furnace tubes, bulk quartz rod orders, and large process vessels requiring minimal port dwell times.
Ocean Freight via Yangon Port (MITT)
Full Container Load (FCL) or Less than Container Load (LCL) consolidated shipments through Yangon Port, escorted by inland customs transit to Naypyidaw industrial depots. Ideal for scheduled annual inventory replenishable contracts.
Manufacturing Superiority
Why Myanmar Procurement Chooses Zunex Quartz
A direct factory integration model coupling Donghai’s crystalline mineral resources with ultra-modern multi-axis CNC cold processing and hydrogen-oxygen flame lathe craftsmanship.
Native Donghai Geological Advantage
Located in the heart of China’s silicone base, we secure raw fused silica rock sand with certified low alkali content ($Li < 0.2\ \text{ppm}, Na < 0.5\ \text{ppm}, K < 0.5\ \text{ppm}$). This prevents premature devitrification and cristobalite formation at elevated operating temperatures.
Advanced Laser & Ultrasonic Finishing
We operate precision CO2 and picosecond laser machining centers for micro-hole drilling (down to $\varnothing 0.1\ \text{mm}$), precision laser grooving, beveling, and slot cutting without causing thermal sub-surface micro-fractures in the silica substrate.
Certified Multi-Barrier Export Packaging
Zero-breakage assurance. Every fragile component is wrapped in antistatic PE film, encapsulated within form-fitting high-density closed-cell polyethylene foam (EPE), and locked in drop-tested fumigated plywood crates compliant with ISPM-15 export regulations.
Procurement Answers
Frequently Asked Questions: Ordering Quartz Glass in Naypyidaw
Addressing engineering specifications, custom drawings, local climate resilience, payment arrangements, and cross-border import processes.
Can you fabricate customized glassware from our CAD drawings or physical broken samples?
Yes. Over 75% of our export output is tailored to non-standard dimensions. You can provide 2D PDF engineering drawings, 3D STEP / DWG / IGES models, or even dimensional sketches. If you possess a broken European, Japanese, or legacy instrument component, send us calibrated photographs and key dimensions; our engineering team will produce a DFM production drawing for your formal sign-off.
How does high humidity in Naypyidaw's monsoon season affect fused quartz optics?
Fused silica has zero hygroscopic absorption and superior chemical resilience compared to crown optical glasses or N-BK7, which can fog or etch in high relative humidity. For UV-visible spectrometry viewports exposed to Naypyidaw’s wet season, we recommend our JGS1 or JGS2 polished plates with hydrophobic coatings to prevent condensation filming without degrading optical transmittance.
What is the typical lead time for delivering quartz parts to Naypyidaw?
Standard tubes, optical plates, and unmachined raw stock ship within 3 to 5 business days. Custom CNC-grooved discs, welded twin-tube flasks, and specialized XRD sample holders require 7 to 14 days of factory tooling and annealing. Transit by air express adds 5 to 7 days to Naypyidaw, meaning urgent replacements typically arrive in under two to three weeks from initial purchase order.
What import documentation is supplied for customs clearance in Myanmar?
Every shipment includes a full set of commercial trade documents: Commercial Invoice (CI), Packing List (PL), Bill of Lading / Air Waybill (AWB), Certificate of Origin (CO - Form E if requested for preferential tariff under ASEAN-China FTA), Factory Inspection Quality Certificate, and Material Spectrographic Analysis Reports.
How do you guarantee our goods will not break during transport?
We follow our proprietary multi-tier shock isolation packaging protocol. Products are cushioned in custom-molded high-density EPE foam pockets that prevent glass-to-glass contact, wrapped in vapor-barrier film, and boxed in reinforced multi-wall cartons before being crated in exterior wooden cases. In the rare event of transit damage documented upon unboxing, we provide immediate free priority manufacturing replacement.
Which payment terms and international commercial incoterms do you support?
We offer FOB Lianyungang/Shanghai, CIF Yangon/Naypyidaw Airport, and DAP (Delivered at Place) directly to your facility door. Accepted settlement modes include Telegraphic Transfer (T/T), confirmed Irrevocable Letters of Credit (L/C at sight) for government tenders, and secure Alibaba Trade Assurance online escrow.
Connect Directly with Our Quartz Engineering Team
Send your dimensional drawings, CAD files, or technical inquiries. Our senior glass engineers review tolerance feasibility and provide formal itemized quotations within two hours.