Featured Quartz & Optical Products
Engineered in Donghai, China's quartz capital. Every component meets strict optical transmission, thermal stability, and dimensional tolerance standards.
Small Bore Clear Fused Quartz Glass Tube for Chromatography
Precision-drawn micro-capillary quartz tubing with flat-cut unpolished ends, optimized for high-resolution fluidic capillary chromatography and analytical chemistry instruments.
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4-Inch US Sand Fused-Quartz Crucibles for Silicon Crystal Growth
Engineered with a bubble-free inner wall layer using refined high-purity quartz sand, ensuring zero contamination during high-temperature semiconductor silicon ingot drawing.
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Clear Transparent Quartz Rod 4-42mm Polished Fused Silica Bar
Thermally resilient up to 1100°C continuous operation. Features high light transmission and optical clarity for light guide systems, process fixtures, and thermal isolation.
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High Purity Heavy Wall Small Bore Quartz Glass Tube Flat Cut
Thick-walled fused silica tubing built to endure internal pressure spikes and steep thermal gradients in extreme chemical processing environments and sight gauge tubes.
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Clear Fused-Quartz Melting Crucibles for Muffle Furnaces
Finished with smooth fire-polished rims to prevent micro-fracturing. Designed for chemical assay, metal melting, and high-temperature laboratory furnace applications.
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4-Inch US Quartz Sand Fused Crucibles for Semiconductor Melting
Specifically fabricated for ultra-pure semiconductor crystal growing and photovoltaic silicon ingot processing with superior thermal shock resistance.
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Optically Polished Single-Crystal Quartz Wafers for QCM Sensors
Precision chamfered edges and surface roughness Ra < 0.5 nm, providing accurate piezoelectric resonance properties for micro-gravimetric sensing and thin-film monitoring.
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High Purity Opaque Milky White Fused Quartz Rectangular Plate Sheet
Thermally insulating opaque quartz slabs offering high heat-reflection characteristics and uniform thermal diffusion for semiconductor heaters and furnace shields.
Contact UsTechnical Whitepaper: CE Certified Quartz Optics & Lenses
An engineering evaluation of physical properties, optical transmission spectrum, and compliance criteria for high-precision fused quartz optical systems.
In modern industrial photonics, laser material processing, semiconductor lithography, and medical diagnostic machinery, optical glass components are subjected to aggressive operating conditions. Standard borosilicate or soda-lime glass components fail when exposed to deep ultraviolet (DUV) radiation, high power laser densities, or violent thermal shocks. As a premier CE Certified Quartz Glass Lens Manufacturer & Supplier serving David and global enterprise engineers, Donghai Kemzo Quartz Products Co., Ltd. produces optical-grade fused silica and synthetic quartz lenses engineered to deliver uncompromising performance.
Fused quartz is synthesized by melting high-purity natural quartz crystals at temperatures exceeding 2000°C. The resulting amorphous silicon dioxide ($\text{SiO}_2$) matrix possesses atomic structural isotropy, yielding exceptional physical parameters: an extremely broad optical transmission band extending from 190 nm in the deep UV to over 3700 nm in the near-infrared, a near-zero thermal expansion coefficient ($5.5 \times 10^{-7}/\text{K}$), and high laser damage threshold (LDT).
Material Specification & Optical Performance Matrix
| Optical Material Grade | Spectral Transmission Range | OH⁻ Content (PPM) | Max Temperature (Continuous) | Primary Engineering Applications |
|---|---|---|---|---|
| JGS1 (Synthetic Fused Silica) | 185 nm – 2500 nm (DUV/UV Grade) | < 5 PPM (Low OH⁻) / > 1000 PPM | 1100 °C | UV Laser Focus Lenses, Photolithography Masks, UV Curing Lenses |
| JGS2 (Fused Quartz from Crystal) | 220 nm – 2700 nm (Optical Grade) | < 30 PPM | 1100 °C | Sight Glass Windows, Pyrometry Optics, General Optical Lenses |
| JGS3 (Infrared Fused Quartz) | 260 nm – 3700 nm (IR Grade) | < 5 PPM (Dry Quartz) | 1200 °C | Infrared Viewports, CO2 Laser Optics, High-Temp Pyrometry |
| Borosilicate Glass (3.3) | 350 nm – 2000 nm (Visible Only) | N/A | 450 °C | Low-cost commercial lighting, laboratory standard beakers |
Why Choose Kemzo Quartz
Operating from Donghai, Jiangsu—China's crystal capital—since 2011. ISO 9001 quality management with direct export capabilities worldwide.
Source Material Purity
Located in the heart of Donghai's quartz processing cluster, we secure high-purity $99.99\%\ \text{SiO}_2$ raw sand directly, eliminating intermediate distributor margins and guaranteeing chemical purity from batch to batch.
Rapid Response & Engineering
Recognized as a Jiangsu High Technology Enterprise, our technical office evaluates OEM/ODM CAD drawings and provides optical feasibility reports and pricing quotes within 1 hour average response time.
CE & ISO Quality Control
Certified under ISO 9001 quality management guidelines. Lenses, windows, tubes, and crucibles are subjected to stress-birefringence testing, laser interferometer measurement, and tight dimensional check.
Precision Optical CNC Finishing
Equipped with multi-axis CNC grinding machines, double-sided optical lap polishing units, and hydrogen-oxygen flame work stations to achieve surface figure quality down to $\lambda/4$ wave-front accuracy.
Custom Export Cushion Packaging
Over 70% to 80% of our products are shipped overseas. Fragile quartz components are packed using custom-cut high-density EPE foam, vibration-absorbing vacuum wraps, and reinforced export wooden crates.
Global Trade Flexibility
Supporting multi-currency settlements (USD, EUR, AUD, HKD, CNY) and full Incoterms flexibility including EXW, FOB, CFR, CIF, DDU, and door-to-door express delivery for seamless procurement.
Localized Industrial Application Scenarios
How our CE certified quartz glass lenses, sight tubes, and plates are integrated into high-tech manufacturing ecosystems serving David and global industrial partners.
When selecting optical components, system integrators and equipment manufacturers serving high-end technical clients must ensure that optical components strictly conform to mechanical tolerances, European CE directives, and environmental standards (RoHS/REACH). Below are the four core domain applications where Kemzo quartz lenses and optics excel:
1. Fiber Laser Optics & Industrial Cutting Heads
In high-power $\text{CO}_2$ and fiber laser welding, cutting, and cladding systems, focusing lenses and protective collimator windows are subjected to kilowatt-level optical power densities. Kemzo’s fused silica lenses offer ultra-low internal absorption ($\le 10 \text{ ppm/cm}$ at $1064\text{ nm}$), eliminating focal shift and thermal degradation.
2. Semiconductor Lithography & Wafer Inspection
Semiconductor fabrication lines rely on deep ultraviolet illumination (248 nm KrF and 193 nm ArF lasers). Kemzo provides JGS1 synthetic quartz lenses and polished quartz wafers with atomic-level surface finish (Ra < 0.5 nm), delivering precise phase transmission and high excimer laser durability without solarization.
3. High-Temperature Furnace Viewports & Pyrometry
Industrial muffle furnaces, chemical reactors, and semiconductor diffusion tubes require sight glass viewports that withstand extreme temperatures up to 1100°C while remaining transparent to infrared pyrometry sensors. Our optical quartz plates enable continuous infrared temperature monitoring without thermal cracking.
4. Medical UV Disinfection & Spectroscopy Cuvettes
Analytical labware, spectrophotometer flow cells, and medical UV-C sterilizers require high UV transparency down to 200 nm. Kemzo manufactures micro-bore capillary tubes, cuvettes, and bi-convex/plano-convex optical lenses optimized for high signal-to-noise ratio in UV spectroscopy.
Localized Market Development Trends
Key technology shifts driving the demand for high-grade quartz optics and CE-marked components.
The global precision optics market is undergoing rapid evolution driven by four key industrial trends:
- 1. Strict CE & Optical Safety Compliance: European and Western machinery builders serving specialized regional markets (such as those serving David's equipment brand lines) increasingly mandate complete traceability and CE certification for integrated optical subsystems. Optical lenses must be verifiably free from heavy metals, lead, and hazardous bubble defects.
- 2. Transition to Higher Laser Power & Shorter Wavelengths: As industrial manufacturing shifts toward ultrafast picosecond/femtosecond lasers and shorter DUV wavelengths, conventional optical glass causes immediate radiation-induced darkening (color centers). Fused silica is becoming the mandatory standard across all laser machining modules.
- 3. Expansion of Clean Energy & Semiconductor Supply Chains: Photovoltaic ingot crystal growing, silicon wafer processing, and piezo-electric QCM sensors require higher purity quartz crucibles and custom-chamfered quartz substrates with zero micro-cracks.
- 4. Demand for On-Demand OEM Customization: Standard off-the-shelf catalog lenses rarely fit modern compact device housings. Buyers require agile manufacturers capable of handling custom optical radius of curvature, ground bevels, anti-reflective (AR) coatings, and low MOQ prototyping.
Buyer Procurement FAQ
Frequently asked technical and commercial questions by optical engineers and procurement managers.
Why is CE Certification important for quartz glass lenses and optical assemblies?
What is the distinction between fused quartz and synthetic fused silica (JGS1 vs JGS2 vs JGS3)?
How do your quartz glass lenses withstand extreme thermal shock?
Can Kemzo manufacture custom optical lenses directly from my CAD drawings?
What optical surface quality and tolerance standards can you achieve?
How do you prevent breakage during international transport?
What are your typical order lead times and payment terms?
Request a Custom Quartz Lens Quote Today
Need CE certified optical quartz lenses, custom ground windows, or high-purity crucibles for your industrial line serving David? Contact Kemzo’s technical sales team for engineering feedback and instant pricing.
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