Engineered from raw crystal silica in Donghai to strict ISO standards. Available in stock dimensions or customized to custom PDF, DWG, and STEP specifications.
Continuous ~1100°C resistant fused quartz tank with precision welding and cutting for metallurgical fluxing and high-purity batch meltings.
Ultra-clear, corrosion-resistant fused silica bell jar for semiconductor wafer processing, thin-film deposition, and vacuum CVD chambers.
Ozone-free twin tube configuration engineered for high-radiation industrial IR emitters, lab heaters, and semiconductor furnace tracks.
99.99% pure silica sight gauge tube engineered for extreme chemical pipelines, marine steam boilers, and high-pressure fluid reactors.
Custom-sized, optically fine annealed fused quartz flat sheets for thermal furnace viewports, weld shields, and high-temperature observation windows.
Specialized hot flame bent U-tubes and manifolds for fluid path sterilization, photochemistry loops, and UV disinfection ballasts.
JGS1 (UV), JGS2 (Standard Optical), and JGS3 (IR) flat plates with laser cutting, hole drilling, and custom edge grinding (flat, C-edge, pencil).
Precision milled quartz retaining rings and flanges with dielectric or conductive coatings for semiconductor wafer clamping and sensor integration.
As Cyprus continues to solidify its role as the dominant maritime, energy, and scientific research center of the Eastern Mediterranean, Limassol stands at the intersection of modern deep-water engineering, photonic measurement, and high-solar-irradiance R&D. Industrial enterprises, testing laboratories, and marine technology operators in the Limassol port cluster require optical and thermal window materials that exceed the capabilities of conventional borosilicate or soda-lime glass. Fused silica (amorphous silicon dioxide, SiO&sub2;) represents the gold standard for these high-stress environments due to its exceptional chemical inertness, near-zero coefficient of thermal expansion, high dielectric strength, and broad transmission range spanning from the vacuum ultraviolet (VUV) to the mid-infrared (MIR) spectrum.
Purchasing agents and optical system designers in Limassol frequently encounter confusing cross-grade terminologies when drafting component specifications. At Zunex Quartz Products Co., Ltd., we classify and fabricate plate materials into three distinct optical categories based on the raw crystal source, smelting methodology, and hydroxyl (OH-) radical concentration:
| Grade Designation | Material Origin | Spectral Transmission Range | Hydroxyl (OH) Content | Primary Limassol Applications |
|---|---|---|---|---|
| JGS1 (UV Grade) | Synthetic Fused Silica (SiCl&sub4; gas synthesis) | 185 nm – 2500 nm (No UV Absorption) | < 5 ppm to ~1200 ppm (Spec dependent) | Laser spectroscopy, UV water purification sensors, photolithography |
| JGS2 (Optical Grade) | Natural High-Purity Quartz Crystal | 220 nm – 2500 nm (Broad UV-Vis) | < 30 ppm | High-pressure sight glasses, solar collectors, camera viewport covers |
| JGS3 (IR Grade) | Vacuum Electric Smelted Natural Quartz | 260 nm – 3500 nm (No 2.73μm OH peak) | < 5 ppm (Water-free) | Infrared thermography viewports, offshore gas flares, thermal pyrometry |
For demanding marine-grade optronics deployed off the coast of Limassol, JGS1 is widely deployed for underwater spectroscopic probes and laser-induced fluorescence (LIF) sensors monitoring ballast water quality. Because JGS1 contains virtually no metallic impurities (Fe < 0.1 ppm, Al < 0.5 ppm), it eliminates bubble-scattering centers and solarization degradation caused by continuous ultraviolet exposure under Cyprus’s high solar flux index.
Limassol’s unique geographical position and economic infrastructure create very specific operating conditions for fused silica components:
A. Offshore Marine Engineering & High-Pressure Sight Glasses: The Limassol port zone and the Vasilikos energy hub host major service providers for offshore oil and natural gas rigs operating in the Aphrodite and Calypso maritime blocks. Boilers, desulfurization scrubbers, and fuel emulsification plants require flat observation discs capable of withstanding operating pressures exceeding 150 bar combined with flue temperatures up to 800°C. Fused silica's flexural strength (~50 MPa) paired with precision CNC double-sided lapping ensures absolute flat seating against spiral-wound metallic gaskets, eliminating fugitive gas leaks in explosive offshore atmospheres.
B. Marine Scrubbers and High-Salinity Desalination: Reverse osmosis desalination stations along the Limassol coastline experience aggressive brine corrosion. Standard borosilicate sight windows cloud over within months due to sodium and chloride etching. Fused silica is completely inert to practically all acids (except hydrofluoric and hot phosphoric acid at elevated temperatures) and neutral salt solutions, ensuring crystal-clear visual monitoring across decades of operational life.
C. Clean-Tech & Concentrated Solar Power (CSP) Research: Collaborative research initiatives spearheaded by the Cyprus University of Technology (CUT / TEPAK) in Limassol demand thermal receiver plates and secondary solar concentrators. Fused quartz sheets exhibit an extraordinarily low thermal expansion coefficient (α = 5.5 × 10&supmin;&sup7; /°C between 20°C and 320°C). This ensures that concentrated solar flux focusing temperatures varying rapidly from 25°C ambient to 900°C do not produce catastrophic mechanical shear or stress fractures.
Driven by the European Union’s decarbonization targets and Cyprus’s strategic development plans, several macro trends are expanding the consumption of fused silica plates in the greater Limassol area:
1. Offshore Photonic Monitoring of Marine Ecosystems: The digitization of the Mediterranean blue economy has fueled the deployment of autonomous underwater vehicles (AUVs) and fixed benthic observatories equipped with deep-sea LiDAR and optical turbidity sensors. Fused quartz plates serve as pressure-resistant optical dome windows rated for depths beyond 3,000 meters.
2. Decarbonization of Commercial Shipping Fleets: Headquartered shipping management titans in Limassol are fitting continuous emission monitoring systems (CEMS) onto commercial container vessels. Fused silica IR-grade (JGS3) windows are an essential, non-negotiable consumable within non-dispersive infrared (NDIR) gas analyzers measuring SOx, NOx, and CO&sub2; emissions under strict IMO 2030 regulations.
Zunex operates a vertically integrated fabrication plant located in Donghai County — the world-renowned "Crystal Capital" of China. Our manufacturing facility bridges raw mineral sourcing with precision semiconductor-grade cleanroom finishing:
• Dimensional Span: Thicknesses from 0.3mm ultra-thin wafers up to 120mm heavy ballistic-grade blocks. Diameters and rectangular dimensions up to 1,200 mm × 800 mm.
• Machining Tolerances: Standard linear tolerance at ±0.1mm; precision CNC ground tolerances up to ±0.01mm on critical mating surfaces.
• Surface Quality & Flatness: Commercial polish (60/40 scratch-dig), precision laser optics polish (20/10 scratch-dig), with flatness up to λ/4 per 25mm aperture measured via He-Ne laser interferometers.
• Edge Finishing: Ground, chamfered (C0.2 to C2.0), stepped rebates, precision laser beveling, and full fire-polished edges to maximize mechanical edge strength against chip propagation.
Direct manufacturer origin, full-spectrum custom machining, and certified export compliance with direct service to the Limassol market.
Situated in Donghai County, Jiangsu — the epicenter of China’s quartz smelting industry. Direct supply chains for high-purity SiO&sub2; raw materials guarantee competitive factory pricing and unmatched quartz ingot homogeneity.
Verified 100% inquiry response rate with an average review time under two hours. Every drawing is reviewed by senior optical and quartz glass fabricators who verify mechanical tolerances, thermal limitations, and machining feasibility.
Beyond traditional flame working, we specialize in non-thermal laser drilling, micro-grooving, circular beveling, and step-milling. This minimizes subsurface micro-fracturing and ensures high breakdown thresholds under pressure.
Every exported plate undergoes dimensional verification, polarimetric internal stress inspection, spectrophotometric transmission mapping, and visual bubble grading before release. Full material certification provided with shipments.
Fragile quartz plates are double-vacuum sealed in anti-static cleanroom pouches, encased within high-density shock-absorbing EPE foam, and crated in custom fumigated plywood cases. Full air/sea insurance coverage with guaranteed replacement for any maritime transit damage.
Essential technical and commercial questions answered for procurement managers, vessel engineers, and lab directors sourcing from Cyprus.
Send your dimensional drawings, required optical grade (JGS1, JGS2, JGS3), and destination specifications. Receive a comprehensive engineer-reviewed quotation within two hours.