ROHS / CE
BAO RAN 419 Fused Quartz Capillary Tube
SiO2 99.99%, 200 Mesh, annealed at 1200°C. Ideal for precision laser guidance, microfluidic sampling, and medical optics.
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Engineered Solutions
Precision Fused Silica & Quartz Components
Manufactured to optical and semiconductor standards with full chemical traceability, polarization stress-relief, and ISO/CE verification.
HIGH OZONE
High Purity Translucent Quartz Glass Tube
Precision cutting, welding, and bending support. Optimized for ozone generators, infrared heating, and UV water treatment.
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1300°C RATED
916Factory High Temperature Silica Tube
Custom engineered for industrial furnaces, thermal processing, and high-vacuum semiconductor diffusion tubes.
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99.99% SiO2
BAO RAN 419 Polished Fused Quartz Sheet
Double-sided optical polishing with white ground rims. Exceptional chemical inertness for laboratory analysis windows.
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CUSTOM BORE
Transparent Quartz Digestion Tube
Customized Kjeldahl and microwave digestion cylinders. High thermal resistance with superior UV/visible light transmittance.
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CNC MACHINED
Custom SiO2 Quartz Glass Laser Reactor
Precision CNC fabrication with 99.99% silica purity for photochemical reactors and high-energy laser containment.
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OPTICAL GRADE
Optical Grade Fused Quartz Plate / Disc
JGS1/JGS2 synthetic fused silica blanks, finished to scratch-dig 40/20. Extreme homogeneity for laser mirrors and viewports.
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THERMAL APPARATUS
Custom Laboratory Fused Quartz Boat
Engineered for sample calcination, semiconductor wafer handling, and severe temperature transitions without devitrification.
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Technical Whitepaper
Fused Silica Engineering: Dynamics & Applications in Cần Thơ
A comprehensive analysis of material behavior, thermodynamic stability, and localized deployment across South Vietnam's industrial and research corridors.
1. Molecular Purity and Thermodynamic Integrity of Fused Silica Rods
Fused silica represents an amorphous state of silicon dioxide (SiO₂), distinguished from regular borosilicate and soda-lime glass through its non-crystalline structure and absence of fluxing agents. Produced through specialized electric fusion or flame hydrolysis from natural quartz sand of 200-mesh granulometry, the resulting material reaches a purity exceeding 99.99% SiO₂.
In high-stress industrial applications, the physical characteristics of fused silica rods provide unparalleled resilience. With a softening point approaching 1730°C and an annealing threshold at 1215°C, these rods operate continuously in environments reaching 1100°C without dimensional deformation or creep. Crucially, its thermal expansion coefficient of approximately 5.5 × 10⁻⁷ /°C (across 20°C to 300°C) is roughly 1/20th that of soda-lime glass. This enables a red-hot quartz rod to be plunged into ice water without fracture—a structural quality essential for thermal instruments exposed to violent temperature swings.
2. Localized Industrial Application Scenarios in Cần Thơ & The Mekong Delta
As the economic, scientific, and educational heart of Vietnam's Mekong Delta region, Cần Thơ is experiencing rapid modernization across its industrial zones, including Tra Noc 1 & 2, Thot Not, and the newly developing VSIP Can Tho (Vinh Thanh). The procurement of CE certified fused silica rods addresses several critical technological workflows:
A. Advanced Seafood & Rice Processing Spectrometry: Cần Thơ functions as the apex processing hub for aquatic exports (Pangasius, Black Tiger Shrimp) and high-value rice cultivars. Analytical chemistry laboratories at regional testing institutions and universities (such as Can Tho University) rely on high-purity JGS1/JGS2 quartz capillary rods and optical light guides for spectrophotometric assaying of heavy metals, pesticide residues, and microbial contamination. Fused silica’s broadband transmission—stretching from 185 nm deep-UV into the near-infrared spectrum—prevents optical distortion and baseline noise during chromatography.
B. Municipal & Industrial Wastewater UV Disinfection: With rigorous environmental standards implemented along the Hau River basin, wastewater facilities in Tra Noc Industrial Park utilize fused silica rods and protection sleeves within industrial ozonizers and germicidal UV systems. Synthetic quartz's immunity to UV solarization ensures maximum transmission of the 253.7 nm germicidal wavelength, resisting photochemical degradation and surface etching caused by dissolved sulfates and chlorides.
C. Solar Photovoltaic & Micro-Machining Incubators: As southern Vietnam expands renewable energy initiatives, solar cell manufacturers and laser processing facilities require precision-ground quartz rods as feedthrough insulators, optical fiber drawing preforms, and high-temperature support jigs inside diffusion and sintering furnaces.
3. Future Trends: Mekong Delta's Industrial Upgrading
Under the Vietnamese Government’s Master Plan for the Mekong Delta, Cần Thơ is pivoting toward high-tech agro-industrial processing, automation, and green chemical manufacturing. Over the next decade, local demand will shift from standard semi-finished glass products to precision CNC-machined fused silica components featuring micro-drilled capillaries, complex threading, and customized planar tolerances within ±0.01 mm.
Supply chain reliability is crucial. Vietnamese technical buyers can eliminate multi-tiered intermediary costs and prolonged lead times by partnering directly with verified primary source manufacturers that manage raw material beneficiation, thermal drawing, and precision grinding under strict quality certifications.
Manufacturing Excellence
Why Technical Buyers Rely on Lovri Quartz
Full vertical integration from mineral crushing to five-axis CNC machining, ensuring metallurgical purity and verifiable structural integrity.
SGS-Assessed & CE Certified
Our 14,271 m² production facility in Lianyungang, China has undergone stringent onsite audit by SGS Group. Every batch of fused silica rods, tubes, and plates conforms to CE directives and RoHS environmental limits, accompanied by raw material mill test reports.
In-House Purity Control
We do not rely on third-party semi-finished billets. Our facility oversees raw lump cutting, high-purity pulverization, acid-pickling, and vacuum de-gassing to guarantee a continuous SiO₂ purity of ≥99.99%, mitigating iron, sodium, and bubble inclusions.
Polarization Stress-Relief
Internal structural tension causes sudden mechanical failure in high-temperature service. Every drawn rod and tube is thermally annealed at 1215°C and validated on high-precision optical polarization stress testers prior to export packaging.
Precision Drawing & CNC Fabrication
Equipped with computerized diamond grinding, laser profiling, slotting, and flame welding units. We achieve custom outer diameter tolerances down to ±0.02 mm for rod diameters ranging from 1 mm to over 100 mm to meet specific customer blueprints.
Safe Export Packaging
Fragile quartz shipments bound for Vietnam's Tan Son Nhat (SGN) air cargo hub or Cat Lai / Cai Mep seaports are wrapped in multi-layer pearl cotton cushioning, vacuum-sealed against tropical humidity, and secured in international ISPM-15 wooden crates.
Engineering Support & Low MOQ
Whether you require a single specialized quartz prototype for academic R&D at a Can Tho university or bulk monthly production runs for equipment manufacturing, our technical engineering team reviews STEP/DWG drawings within 24 hours.
Procurement Guide
Frequently Asked Questions by Industrial Buyers in Cần Thơ
Essential guidance covering customs, logistics routes, grade distinctions, and technical validation for Vietnam procurement managers.
What are the lead times and shipping methods to Cần Thơ and southern Vietnam?
Standard prototype orders and small batches (such as optical windows and capillary rods) are typically produced within 5 to 7 business days and dispatched via expedited air freight (DHL, FedEx, SF Express) arriving in Cần Thơ within 3 to 5 business days after customs clearance at Tan Son Nhat International Airport. For larger industrial furnace tubes and heavy quartz apparatus, sea freight to Ho Chi Minh City ports (Cat Lai) takes approximately 10 to 14 days, followed by direct bonded transport via the Trung Luong - My Thuan - Can Tho expressway.
How do I determine whether my application requires JGS1, JGS2, or JGS3 quartz rod material?
Material selection depends primarily on spectral transmission and thermal parameters:
JGS1 (Synthetic Fused Silica) offers premium transmission across the deep-UV and visible spectra (185–2500 nm), free of bubble inclusions—critical for UV laser optics, fluorescence spectroscopy, and lithography.
JGS2 (Optical Grade Quartz) provides strong transmission between 220 and 2500 nm, representing the most cost-effective balance for UV sterilization, observation viewports, and general laboratory glassware.
JGS3 (Infrared Grade Quartz) is manufactured via electric vacuum melting with virtually zero hydroxyl (OH⁻) content, offering maximum transmission in the infrared range (260–3500 nm) for IR heating elements and pyrometry.
Are customs documentation and Certificate of Origin (Form E) provided for import into Vietnam?
Yes. Every export order is shipped with a comprehensive commercial invoice, packing list with net/gross weights, Certificate of Conformance (CoC), RoHS test report, and CE declaration of conformity. Under the ASEAN-China Free Trade Agreement (ACFTA), we can provide a preferential Certificate of Origin (Form E), enabling Vietnamese enterprises to reduce or eliminate standard import tariffs on fused quartz and silica products under HS codes 7002.31 and 7002.39.
How does Lovri prevent breakage of fragile quartz components during international transit?
Our specialized export packaging protocols are engineered specifically for fragile optical glass. Each silica rod and capillary tube is individually encased in static-free bubble sleeves or custom high-density EPE foam cutouts, eliminating interior movement. Multiple bundles are sealed in moisture-barrier foil bags to prevent surface water staining during tropical maritime transit, then packed into export-grade corrugated cartons suspended within reinforced, fumigated plywood crates with drop-indicator warning labels.
Can fused quartz rods withstand high-salinity or acidic agricultural environments in the Mekong Delta?
Exceptional chemical inertness is one of fused silica's core strengths. Fused quartz is completely non-reactive to all organic solvents, neutral solutions, and concentrated inorganic acids (including hydrochloric, sulfuric, and nitric acid) across virtually all operating temperatures. The only chemicals capable of etching silica glass are hydrofluoric acid (HF) and concentrated phosphoric acid (H₃PO₄) above 150°C. In high-humidity coastal and riverine environments subject to saltwater intrusion, fused silica will not cloud, leach ions, or exhibit structural weathering.
Request Specifications or Custom Drawings for Cần Thơ Projects
Consult directly with our silica application engineers. Whether you need standard optical rods, custom laser capillary tubes, or high-temperature quartz apparatus, we provide rapid feasibility reviews and detailed export proposals.