Engineered from raw crystal quartz and synthetic silicon dioxide, our fused quartz plates and custom laboratory hardware maintain optical clarity, thermal stability up to 1450°C, and micrometer-level mechanical tolerances.
High optical transmittance in deep UV-visible spectrum. Designed for spectrophotometry, biomedical reaction vessels, and high-temperature thermal testing.
Precision step-milled ultra-thick fused quartz plates. Custom chamfering, hole drilling, and double-sided lapping for high-pressure vacuum chambers.
Continuous spiral-wound quartz cooling and heating coils. Superior thermal shock resistance for corrosive chemical condensers and distillation setups.
Heavy-duty fused silica boiling and volumetric flasks. Extreme resistance against aqua regia, nitric acid, and rapid temperature fluctuations.
Solid transparent quartz rods crafted for optical waveguiding, semiconductor quartz boat fabrication, and cleanroom heating element supports.
Bubble-free JGS2 optical quartz sheets. Designed for UV curing viewports, solar cell testing stages, and scratch-resistant cleanroom monitoring viewports.
Precision optical polishing with flatnesses down to λ/4. Chamfered, bevelled, and ultrasonically cleaned for medtech diagnostic instruments.
High-volume export sheets for automated optical sorting lines, UV laser lithography, and high-efficiency photovoltaic module calibration chambers.
China's Premier Quartz Hub
In-house Lapping & CNC Milling
88.89% Response Rate
Global Export Excellence
Founded in February 2019 in Donghai County, Lianyungang, Jiangsu Province—the universally recognized quartz capital of China—Donghai County Nivra Quartz Products Co., Ltd. operates as a fully integrated manufacturer and specialized exporter. With an expansive manufacturing floor and a team of 101 to 200 skilled glass artisans and optical engineers, we control the entire processing chain from raw SiO² refining and precision cutting to double-sided chemical-mechanical polishing (CMP), CNC flame profiling, laser drilling, and cleanroom vacuum packaging.
Unlike trading intermediaries, Nivra Quartz maintains direct oversight over internal stress distribution, bubble grade inclusion classification (Class 0 according to DIN 58927 standards), and strict geometric verification via Zygo laser interferometry. Our factory premises and production lines have been rigorously checked on-site by third-party inspection agencies, backing our 5.0/5 verified rating and consistent shipping pipeline across North America, Western Europe, and rapidly expanding biomedical export destinations like Cartago, Costa Rica.
Understanding the optical transmission band, hydroxyl content [OH-], and thermal mechanical properties is critical for Cartago engineers designing cleanroom inspection systems, catheter UV curing jigs, and laser tooling.
Optical quartz glass is an amorphous material consisting almost entirely of silicon dioxide ($SiO_2$). In optical design, selecting between JGS1 (Synthetic Deep-UV Fused Silica), JGS2 (Optical Grade Fused Quartz), and JGS3 (Infrared Grade Fused Quartz) dictates optical transmission efficiency, laser-induced damage thresholds (LIDT), and fluorescence emission under ultraviolet irradiation.
| Optical Grade | Raw Material Source | Spectral Transmission Band | Typical [OH-] Content | Primary Cleanroom & Instrument Applications |
|---|---|---|---|---|
| JGS1 (Deep UV) | Synthetic $SiCl_4$ Gas Phase Hydrolysis | 185 nm – 2500 nm (>90% @ 200nm) | ≤ 1200 ppm (High OH) | Excimer lasers (193nm, 248nm), UV curing viewports for medical catheters, fluorescence spectroscopy cuvettes. |
| JGS2 (Standard Optical) | Refined Natural Crystal Quartz | 220 nm – 2500 nm (>90% @ 260nm) | ≤ 150 – 200 ppm | High-pressure sight glasses, optical flats, substrate discs for photolithography, UV sterilization reactors. |
| JGS3 (Infrared Grade) | Electric Vacuum Fused Quartz | 260 nm – 3500 nm (No OH dip @ 2730nm) | ≤ 5 – 10 ppm (Water Free) | Thermal imaging viewports, infrared pyrometry windows, CO² laser cutting shields, vacuum furnace sight holes. |
For Cartago's medical manufacturing cleanrooms in Zona Franca La Lima and Parque Industrial Cartago, JGS1 and JGS2 plates serve as the industry standard. Their thermal expansion coefficient of $\approx 5.5 \times 10^{-7} / ^\circ\text{C}$ is approximately 1/20th that of borosilicate glass, making our quartz plates virtually immune to thermal cracking during high-intensity UV curing or localized laser welding cycles.
| Physical / Thermal Property | Standard Testing Value | Significance for Cartago Production Engineering |
|---|---|---|
| Silicon Dioxide ($SiO_2$) Purity | ≥ 99.99% – 99.999% | Prevents trace heavy-metal leaching in medical diagnostics and acid bath etching. |
| Density | 2.20 g/cm³ | Lightweight structural integrity for automated end-effector inspection tools. |
| Continuous Service Temperature | 1100 °C | Withstands extreme sterilization, pyrolytic cleaning, and continuous heating coils. |
| Short-Term Maximum Temperature | 1450 °C | Prevents deformation during localized high-temperature flame annealing. |
| Mohs Hardness / Knoop Hardness | 5.5 – 6.5 Mohs / 522 kg/mm² | High scratch resistance against particulate abrasion in Class 7 cleanrooms. |
| Surface Roughness ($Ra$) | ≤ 0.5 nm (Super-Polished) | Eliminates light scatter in laser-based optical measurement jigs. |
| Surface Quality / Scratch-Dig | 40/20 or 20/10 (MIL-PRF-13830B) | Guarantees zero micro-scratches that could concentrate stress under thermal shock. |
Costa Rica is the undisputed medical technology manufacturing powerhouse of Latin America. In the industrial heart of Cartago Province, Nivra Quartz plates and components integrate into critical production processes.
Cartago hosts world-class manufacturing for vascular catheters, guidewires, and delivery systems. Modern assembly relies on high-speed UV adhesive curing (365 nm and 405 nm wavelengths). Nivra's JGS1 optical quartz glass plates deliver >92% direct UV transmission with zero yellowing or solarization over thousands of operational hours, preventing bonding failures and guaranteeing ISO 13485 compliance.
Precision electronic sub-assemblies and micro-machined medical implants in Cartago require automated vision inspection. Our double-sided polished square and circular quartz plates act as scratch-resistant, optically flat reference stages (λ/4 flatness). Their low refractive index variance ensures distortion-free camera magnification down to the single-micron level.
Precision stent cutting and laser ablation in medical device plants generate localized vaporized debris and thermal spatter. Fused silica plates fabricated by Nivra serve as high-damage-threshold sacrificial windows in front of sensitive galvanometric laser scanner heads, protecting multimillion-dollar optics while resisting chemical degradation from process off-gassing.
As multinational MedTech and electronics giants expand across Cartago, the transition toward direct factory-level quartz procurement offers quantifiable cost and quality control advantages.
Costa Rica's foreign direct investment boom has concentrated high-complexity manufacturing inside Zona Franca La Lima and surrounding industrial parks. Device engineers require rapid prototyping turnaround for non-standard quartz plate geometries without the excessive markups charged by North American catalog brokers.
With modern medical assemblies moving toward Class 7 and Class 5 cleanrooms, quartz tooling must arrive without oil residues, burrs, or particulate dusting. Nivra Quartz supports Cartago validation runs (IQ/OQ/PQ) by supplying full dimension CMM reports, optical transmittance charts, and ultrasonic cleanroom double-vacuum packaging.
Purchasing directors in Cartago increasingly bypass secondary trading houses to establish direct lines with Donghai-based manufacturers. Sourcing direct from Nivra Quartz drops raw optical component costs by 35% to 50% while opening direct engineering communication on tolerances, edge profiling, and customized step configurations.
Located at 285 Heping East Road, Lianyungang, Jiangsu, China, our 101–200 employee facility combines computer-controlled machinery with certified optical testing.
Unlike small workshops that subcontract critical operations, Nivra Quartz maintains an end-to-end industrial park production plant:
Everything procurement leads, tooling specialists, and supply chain analysts in Costa Rica need to know regarding logistics, international customs, quality assurance, and packaging.
Every optical plate is ultrasonically degreased, wrapped with anti-scratch lint-free lens paper, and sealed inside dual vacuum PE pouches to isolate atmospheric moisture. The parts are cushioned within custom-cut, high-density polyethylene (EPE) shock-absorbing foam molds inside reinforced heavy-duty export corrugated boxes or fumigation-free solid plywood export cases. Zero transit breakages across thousands of global shipments.
For urgent engineering pilot builds or cleanroom tooling lines, air express via DHL, FedEx, or UPS to Juan Santamaría International Airport (SJO) takes 4 to 7 business days from dispatch. Commercial consolidated air freight takes 7 to 10 days. For bulk production orders, ocean container shipping via Puerto Caldera (Pacific) or Puerto Moín (Caribbean) averages 24 to 32 days port-to-port.
Yes. We regularly supply international companies operating under Costa Rica's Free Zone Regime (Régimen de Zona Franca managed by PROCOMER). We provide full export documentation including detailed Commercial Invoices, Packing Lists with tariff HS codes (typically 7002.31 or 7006.00 for worked quartz), Certificates of Origin, and SGS material test reports to streamline customs exoneration.
For precision optical plates and discs, we manufacture to tight tolerances: thickness down to ±0.02 mm, outer diameter / width to ±0.05 mm, optical flatness to λ/4 or λ/10 per inch, parallelism <30 arc seconds, and surface finish from commercial 60/40 scratch-dig down to laser-grade 20/10. Each order includes a dimensional inspection report verified by micrometers and laser interferometers.
If your process involves ultraviolet light below 260 nm (e.g., UV adhesive curing, excimer lasers, germicidal sterilizers), choose JGS1 synthetic fused silica to avoid transmission attenuation. For general optical viewports, sight glasses, and photolithography stages operating in the visible range (300–1000 nm), JGS2 is the most cost-effective. For infrared sensors, thermal pyrometers, and heating elements operating past 2000 nm, JGS3 is required to eliminate OH absorption dips.
Standard optical quartz plates and custom test specimens can be ordered with a minimum order quantity (MOQ) as low as 1 to 10 pieces. For custom CNC machined plates, prototyping typically ships within 5 to 8 business days following final drawing approval (PDF, DWG, or STEP).
Send your 2D drawings, 3D CAD files, or technical target specifications to our engineering office. Get comprehensive manufacturability feedback, material grade recommendations, and direct factory pricing delivered within 5 hours.