Softening 1683°C
Clear Refractory Fused Quartz Crucible Bowl SJ Brand 48 N/mm Tension
- Tensile Strength: 48 N/mm²
- Thermal Softening: 1683°C Max
- Grade: Semiconductor Lab
Precision Engineered Component Lineup
Featured Industrial & Semiconductor Quartzware
From 99.999% SiO₂ fused silica crucibles to ultra-flat optical inspection plates, explore our verified OEM/ODM export components ready for dispatch to advanced manufacturing facilities across Cartago and greater Costa Rica.
Purity 99.99%
SJ 130 Clear High-Precision Negative Pressure Leak-Proof Vacuum Tube
- SiO₂ Composition: 99.99% Pure
- Pressure Integrity: Leak-Proof Vacuum
- Working Range: Continuous 1100°C
Optical Grade
SJ SJ 126 Natural Fused Quartz Square Thin Glass Slide Optical Substrate
- Surface Polish: Ra < 0.5 nm
- Transparency: Deep UV to Near IR
- Thickness: 0.5mm – 20mm Custom
Ozone-Free
High Temperature Ozone-Free One End Closed Quartz Tube (5-800mm)
- Diameter Range: 5mm – 800mm OD
- UV Cutoff: Absorbs < 220 nm
- Fabrication: Flame Closed & Polished
Corrosion-Proof
Corrosion-Resistant Semiconductor 400 Mesh Laboratory Quartzware
- Acid Resistance: HF Excluded Inert
- Mesh Spec: 400 Mesh Filtration
- Durability: Ultra-Long Lifespan
XRD Metrology
XRD Quartz Sample Holder High Transmittance Circular Plate Substrate
- Background Noise: Zero Amorphous Diff.
- Flatness: λ/4 per 25mm
- Parallelism: < 30 arcsec
High Frequency
Quartz Glass Tube Plugging Rod & Heating Test Furnace Boat
- Dielectric Loss: Ultra-Low tan δ
- Surface Polish: Fire-Polished Optical
- Thermal Cycling: 1100°C to Cold H₂O
99.999% Ultra-Pure
Precision Quartz Separating Container Semiconductor Grade 99.999%
- Metal Impurities: < 5 ppm Total
- Application: Chemical Separation
- Custom Tolerances: ±0.05 mm CNC
99.999%
Maximum SiO₂ Purity
1683°C
Thermal Softening Point
5.5×10⁻⁷
Thermal Expansion (CTE/°C)
1PC
Custom Prototype MOQ
E-E-A-T Technical Baseline
Comparative Metallurgy & Material Physics of Fused Silica Substrates
Material selection directly dictates manufacturing yield in Cartago's high-reliability life science and microelectronic cleanrooms. Understanding the thermodynamic differences between synthetic chemical vapor deposition (CVD) silica and electrically fused natural quartz is critical for engineering procurement.
| Physicochemical Property | JGS1 (Synthetic Fused Silica) | JGS2 (Optical Grade Quartz) | JGS3 (Refractory/Infrared Quartz) |
|---|---|---|---|
| Primary Raw Material Source | Synthetic SiCl₄ Precursor (CVD) | Donghai High-Purity Natural Quartz Sand | Natural High-Temperature Quartz Crystal |
| SiO₂ Purity Level | > 99.9999% (< 0.1 ppm Fe) | > 99.995% (< 1.5 ppm Fe) | > 99.99% (< 5 ppm Fe) |
| Spectral Transmission Band | 185 nm – 2500 nm (Deep DUV) | 220 nm – 2600 nm (UV-Vis-NIR) | 260 nm – 3500 nm (Broadband IR) |
| Hydroxyl [OH⁻] Content | > 1200 ppm (Water Peak at 2.73 µm) | < 30 ppm (Low Absorption) | < 5 ppm (Zero IR Water Peak) |
| Coefficient of Thermal Expansion (0-300°C) | 5.4 × 10⁻⁷ K⁻¹ | 5.5 × 10⁻⁷ K⁻¹ | 5.5 × 10⁻⁷ K⁻¹ |
| Dielectric Constant (1 MHz @ 25°C) | 3.75 (Low Dissipation Factor) | 3.78 | 3.80 |
| Surface Roughness Achievable (CMP) | Ra < 0.2 nm (Atomic Scale) | Ra < 0.5 nm (Precision Polish) | Ra < 1.0 nm (Commercial Optical) |
| Typical Cartago Facility Application | Excimer Photolithography, DNA Cartridges | Medical Laser Windows, XRD Metrology | Diffusion Furnaces, Thermal Wells |
Thermal Shock & Structural Homogeneity Guarantee
All fused quartz substrates exported from Vulra Quartz undergo controlled inert-gas vacuum annealing down to the transformation temperature range (1020°C to 1120°C). This process eliminates residual strain birefringence, ensuring an internal stress value below 5 nm/cm (measured via cross-polarization polarimetry). Substrates withstand sudden water quenching from 1100°C to 20°C without mechanical rupture or micro-cracking.
Industrial Application Ecosystem
How Cartago High-Tech Manufacturers Deploy Our Quartz Substrates
The Province of Cartago has evolved into Costa Rica's flagship center for advanced medical technology, life science diagnostic systems, and precision sub-assembly exports. Our customized quartz glass plates, tubes, and carriers fit directly into these local cleanroom workflows.
Zona Franca La Lima: Microfluidic & In-Vitro Diagnostics
Life sciences cleanrooms in La Lima Free Zone utilize our ultra-thin (0.15 mm to 0.5 mm) fused quartz slides as optical coverslips and reaction bases for next-generation automated immunoassay cartridges. Synthetic quartz guarantees zero autofluorescence under UV-blue excitation (365 nm – 405 nm), enabling single-molecule fluorescent resolution in blood diagnostic devices.
Semiconductor Test, Packaging & Burn-In Substrates
As Costa Rica advances its National Semiconductor Strategy, Cartago's assembly and test (ATP) operations require dielectric wafer carriers, vacuum pick-up chucks, and quartz staging plates. Our substrates offer exceptional volume resistivity (> 10¹⁸ Ω·cm at 20°C) and thermal stability during high-temperature burn-in testing up to 800°C without mechanical deflection.
Surgical Laser Optics & Endoscopy Windows
Medical device contract manufacturers in Cartago Industrial Park assemble specialized ophthalmic and dermatological laser handpieces. Our high-damage-threshold (LIDT > 10 J/cm² @ 1064 nm, 10 ns) fused silica windows deliver unmatched optical durability, resisting laser-induced darkening and thermal blooming in continuous surgical duty cycles.
Procurement Intelligence
Cartago's 2025–2030 Tech Trajectory & Direct Sourcing Shift
Supply chain managers and manufacturing directors across the Cartago innovation belt are actively diversifying raw material dependencies away from high-markup regional intermediaries toward direct Chinese primary producers.
Trend Analysis 01
Elimination of North American Distributor Markups
For decades, Cartago procurement teams purchased Chinese-manufactured quartz glassware through third-party catalog distributors in Miami or California, incurring a 250%–400% price penalty. Direct OEM engagement with Vulra Quartz provides factory-direct wholesale pricing, direct engineer-to-engineer drawing signoffs, and customized safety stocks.
Trend Analysis 02
Alignment with PROCOMER Semiconductor Incentives
Following executive bilateral investments, Costa Rica is integrating tightly into the global semiconductor supply chain. Cartago serves as the prime hub for backend testing. This shift creates soaring demand for non-reactive quartz diffusion accessories, wafer boats, and chemical vapor deposition chamber shields with certified purity levels above 99.999%.
Trend Analysis 03
Stringent Cleanroom Packaging Class 100 Standards
MedTech assembly lines in Cartago cannot tolerate micro-particulate shedding or chemical residue on incoming optical components. Vulra Quartz has instituted ultrasonic cleanroom washing with 18.2 MΩ·cm deionized water and double-layer antistatic vacuum sealing, allowing substrates to enter Class 10,000 / ISO 7 airlocks without re-cleaning.
Why Vulra Quartz Stands Out
Direct Donghai Origin · TÜV Rheinland Verified Primary Manufacturer
Headquartered at No. 9 Dingxin Road, Jiangsu Donghai Economic Development Zone—the internationally acknowledged crystal capital of China—Lianyungang Vulra Quartz Products Co., Ltd. controls the complete synthesis-to-machining value stream.
01
Drawing-to-Part Accuracy
Multi-axis CNC ultrasonic milling, waterjet cutting, and precision diamond grinding achieve mechanical tolerances as tight as ±0.02 mm on custom complex geometries.
02
1-Piece Rapid Prototyping
We respect R&D engineering cycles. Validate form, fit, and optical transmittance with pilot batches starting at a single unit before committing to high-volume commercial scaling.
03
Dual Hot & Cold Facilities
Seamless integration of oxy-hydrogen thermal lathe glassblowing (bending, sealing, dome fabrication) with chemical-mechanical polishing (CMP) for mirror surface finishes.
04
Long-Haul Export Packaging
Engineered shock-absorbing foam isolation, individualized vacuum wraps, and reinforced international fumigated plywood crates ensure zero transit breakage into Costa Rica.
Uncompromising Quality Control for Critical Operations
Every quartz substrate destined for Cartago's technology corridors undergoes rigorous multi-stage verification before dispatch. Using PerkinElmer Lambda 950 spectrophotometers, Zygo laser interferometers, and Olympus polarizing stress meters, we ensure your components arrive with full material traceability.
- ICP-MS Spectrometry: Purity validation measuring trace iron, aluminum, titanium, and alkalis below PPM thresholds.
- Interferometric Flatness: Surface wave-front distortion verified to λ/4 (632.8 nm) or better across active optical apertures.
- Thermal Homogeneity & Annealing: 24-hour cycle computer-controlled stress-relief kilns prevent thermal fracture.
TÜV Rheinland On-Site Assessed
Verified production capacity, equipment, legal and technical status
CE & RoHS Full Compliance
Certified hazardous substance elimination for sensitive electronics
Donghai Industrial Cluster Advantage
Immediate access to 95% of China's high-purity silica raw ore reserves
Procurement Intelligence & Due Diligence
Frequently Asked Sourcing Questions for the Cartago Market
Transparent, practical insights compiled by our international trade and engineering departments to streamline your vendor auditing and customs clearance processes into Costa Rica.
Q1 How do Free Trade Zone companies in Cartago handle import tariffs on Chinese quartz glass?
Companies operating under Costa Rica's Régimen de Zona Franca (managed via PROCOMER) enjoy full exemption from import duties and local value-added taxes (IVA) on industrial raw materials and production machinery. We provide fully compliant commercial documentation—including HS Codes 7002.31 (fused quartz tubes), 7002.39, and 7006.00 (worked quartz glass plates)—along with complete Certificates of Origin (COO) to facilitate automated green-channel customs release through Juan Santamaría International Airport (SJO) or Puerto Limón.
Q2 What optical and dimensional tolerances can you guarantee for cleanroom substrates?
For custom diced, ground, and polished quartz plates, our standard CNC tolerances are ±0.05 mm, with high-precision capabilities reaching ±0.01 mm on request. Surface scratch-dig specifications comply with US Military MIL-PRF-13830B standards (ranging from commercial 60-40 down to laser-grade 10-5). Parallelism can be maintained below 10 arcseconds, and surface flatness is guaranteed up to λ/10 per inch measured at 632.8 nm helium-neon laser wavelengths.
Q3 What is the transit lead time from Lianyungang to Cartago, Costa Rica?
For urgent engineering prototypes and pilot batches (1 to 50 pieces), express air courier (DHL/FedEx/UPS directly into SJO) requires approximately 5 to 8 business days following fabrication. For bulk production orders, maritime freight from Lianyungang Port or Shanghai Port to Puerto Limón has a typical ocean sailing time of 24 to 28 days. We frequently establish rolling buffer agreements for recurring Cartago production contracts.
Q4 Why should our plant choose natural fused quartz over synthetic fused silica?
Budget and wavelength dictate the decision. Natural fused quartz (such as JGS2) uses high-purity natural crystal sand from Donghai and is substantially more cost-effective while offering 99.99%+ SiO₂ purity and broad UV-to-infrared transmission (220 nm to 2600 nm). Synthetic silica (JGS1) is synthesized chemically and is necessary only when your device demands extreme deep-ultraviolet transmission down to 185 nm or near-zero metallic impurity levels (< 0.1 ppm for sensitive wafer diffusion).
Q5 How do you prevent breakage during international intermodal logistics?
Fragile quartzware demands specialized structural packaging. Every item is washed, wrapped in static-shielding film, placed in customized high-density EPE foam cutouts, and secured in heavy-wall corrugated boxes. For heavy products or optical glass slides, these are further enclosed in export-certified, heat-treated wooden crates with tilt/impact monitoring indicators. Over six years of international exports, our transit damage rate remains below 0.18%.
Q6 Can you produce custom parts directly from CAD drawings or reverse engineer broken samples?
Yes. Our engineering team routinely accepts 2D and 3D files in STEP, IGES, DWG, DXF, and SolidWorks formats. If you only possess a worn or broken replacement part from an imported furnace or laboratory reactor, you can provide its physical dimensions and operating parameters; our engineering team will produce an approval drawing with recommended wall thicknesses and thermal stress relief before initiation.
Ready to Optimize Your Quartzware Supply Chain in Cartago?
Submit your technical 2D/3D CAD drawings or specifications today. Our senior glass engineers provide detailed design-for-manufacturing (DFM) reviews, purity grading recommendations, and competitive wholesale quotes within 24 hours.