UV Grade · High Damage Threshold
Quartz Plate for Laser Protection Window Fused Silica UV Grade
Spectra: 185–2500 nm | Scratch-Dig: 20/10 | Damage Threshold: >10 J/cm² @ 1064nm
≥99.99%
Ultra-High SiO₂ Purity
λ/10
Surface Flatness Accuracy
1200°C
Continuous Working Temp
≤2h
Technical Quotation Speed
Engineered Optical Substrates
Precision Quartz Plates & Optical Windows Series
Manufactured from high-purity crystalline quartz and synthetic fused silica (JGS1, JGS2, JGS3), custom cut, CNC machined, and polished to exact micrometer tolerances.
Ultra-Thin Substrates · Flexible Precision
Ultra Thin Quartz Plate 0.3mm 0.5mm Fused Silica Optical Grade Clear
Thickness: 0.2mm - 0.5mm (±0.01mm) | Parallelism: <30 arcsec | TTV: <2µm
Extreme Pressure · High Temp Sight Glass
Quartz Observation Window Plate Fused Silica High Pressure Clear
Pressure Rating: Up to 25 MPa | Working Temp: 1100°C continuous | Zero Bubble Inclusion
Semiconductor Substrate · Low CTE
Quartz Photomask Substrate Plate Fused Silica UV Grade Ultra Thin
Thermal Expansion: 5.5×10⁻⁷ /°C | Flatness: <1.0µm | Cleanroom Class 100 Packaged
Metrology Reference · Optical Flat
Quartz Optical Flat Plate Fused Silica High Flatness Polished Custom
Surface Flatness: λ/4 to λ/20 | Double-Sided Polishing | Roughness Ra: <0.5nm
CNC Ultrasonic Machining · Custom Micro-Holes
Drilled Quartz Plate Multi Hole Fused Silica CNC Machined Custom
Hole Diameter: Min 0.3mm | CNC Pitch Accuracy: ±0.02mm | Chip-free edge chamfering
Industrial Furnace Plates · Custom Sizing
Rectangular Quartz Plate Fused Silica Clear Precision Cut Custom Size
Dimensions: Up to 1200×800mm | Ground / Fire-Polished Edges | High Chemical Inertness
Vacuum Flange Viewports · Deep UV/IR
Quartz Viewport Glass Quartz Window Plate Optical Window Quartz High Pressure
Compatible: CF / KF / ISO Flanges | Helium Leak Rate: <1×10⁻¹⁰ Pa·m³/s
Strategic Industrial Fit
Precision Applications across Denmark's High-Tech Sectors
Danish precision engineering and rigorous environmental initiatives require optical quartz plates that withstand aggressive chemical conditions, ultra-high thermal stress, and stringent optical purity.
Life Sciences & MedTech (Medicon Valley)
Within the pharmaceutical and bio-analytical corridor spanning Greater Copenhagen and Lund, fused silica plates serve as non-reactive, autofluorescence-free inspection substrates. Our optical flats are integral to flow cytometry flow-cells, microfluidic chips, and spectrophotometric diagnostics where UV transmission down to 190 nm is mandatory.
VEZLO's ultra-thin 0.3mm-0.5mm plates provide optimal beam delivery without optical dispersion, eliminating baseline interference in biological fluorescence assays.
GreenTech, Wind Energy & Power-to-X
As Denmark spearheads global offshore wind integration and green hydrogen electrolysis (Esbjerg and Jutland industrial clusters), high-pressure quartz viewport plates are critical for high-temperature electrolysis reaction chambers, fuel cell test stations, and catalytic monitoring windows.
Our observation plates endure sustained thermal environments of 1100°C with near-zero thermal expansion (5.5×10⁻⁷/°C), mitigating micro-cracking risks under dynamic pressure cycles.
Laser Processing, Robotics & Photonics
Centering around Odense's renowned robotics hub and Aarhus precision engineering firms, industrial fiber laser cutting and welding systems require sacrificial quartz protective windows with exceptionally low absorption and high laser-induced damage thresholds (LIDT).
VEZLO UV and IR grade quartz plates prevent thermal lensing and beam distortion in multi-kilowatt fiber laser cutting heads, extending maintenance intervals and protecting costly collimator optics.
Market Dynamics & Future Outlook
Emerging Trends Driving Quartz Consumption in Denmark
Analysis of procurement shifts within Danish original equipment manufacturers (OEMs), university research institutes (DTU, AU), and industrial manufacturing.
Transition Toward Quantum & Sub-Nanometer Metrology
With Denmark investing heavily in quantum computing hardware (Niels Bohr Institute ecosystem), there is an escalating demand for synthetic fused silica with sub-angstrom surface roughness (Ra < 0.2 nm) and ultra-low internal stress birefringence (< 2 nm/cm).
Engineers are moving away from traditional borosilicate glass toward fused silica photomask substrates to avoid thermal expansion shifts during deep ultraviolet lithography and laser beam shaping.
Stringent Chemical & RoHS/REACH Environmental Mandates
Danish procurement managers operate under EU REACH and strict national environmental oversight. Fused quartz from VEZLO eliminates heavy metal leaching risks entirely. Trace metal purity (Al, Fe, Ti, Ca, Mg totaling ≤ 20 ppm) prevents ionic contamination in biological media and harsh acid etching baths (Piranha, Aqua Regia).
Lean Inventory & High-Mix Low-Volume (HMLV) Sourcing
Rather than warehousing massive stocks of standard sheets, Danish R&D departments and specialized instrument builders increasingly source CNC-drilled, multi-hole, and polished custom-cut plates directly on demand.
The ability to deliver small pilot batches (10 to 50 pieces) with full dimensional metrology reports within compressed turnaround times is key to modern Nordic supply chain resilience.
Engineering Whitepaper
Technical Material Matrix: Synthetic Fused Silica vs. Natural Fused Quartz
Reference data for mechanical, thermal, and optical selection criteria when designing viewport and substrate components.
| Material Property | JGS1 (Synthetic Fused Silica) | JGS2 (Fused Natural Quartz) | JGS3 (Infrared Fused Silica) | Engineering Significance |
|---|---|---|---|---|
| Spectral Transmission | 185 nm – 2500 nm (Deep UV) | 220 nm – 2500 nm (Standard Optical) | 260 nm – 3500 nm (No OH Absorption) | Crucial for UV laser transmission vs. IR sensor windows |
| SiO₂ Content / Purity | ≥ 99.999% (≤ 5 ppm metals) | ≥ 99.99% (≤ 20 ppm metals) | ≥ 99.995% | Prevents devitrification & ensures optical homogeneity |
| Thermal Expansion Coeff. | 5.5 × 10⁻⁷ /°C (20°C–320°C) | 5.5 × 10⁻⁷ /°C | 5.5 × 10⁻⁷ /°C | Exceptional resistance to violent thermal shocks (1000°C to cold water) |
| Max Continuous Temp | 1100 °C | 1150 °C | 1100 °C | Operates in high-temperature ovens without deformation |
| Internal Stress Birefringence | ≤ 2 nm / cm | ≤ 5 nm / cm | ≤ 4 nm / cm | Guarantees wavefront stability for polarization-sensitive lasers |
Direct Factory Advantage
World-Class Quartz Production Rooted in Donghai
VEZLO Quartz Products Co., Ltd. operates out of a comprehensive 33,000 m² (50-mu) industrial manufacturing complex in Donghai County, China's world-recognized quartz capital. Backed by RMB 10 million in fixed assets, we maintain end-to-end quality control—from refined raw crystal quartz sand (≤20 ppm metals) up to multi-axis CNC ultrasound hole drilling and precision optical polishing.
Our core R&D achievements include heading the Jiangsu Provincial Science & Technology Support Project for ultra-high-purity 320mm quartz components and receiving national new product approval for advanced large-diameter quartz systems.
Procurement Clarity
Frequently Asked Questions by Danish Buyers
Essential answers regarding delivery logistics, customs duties, quality verification, and custom specifications for Denmark.
How are quartz plates shipped to Denmark to avoid edge chipping?
All quartz plates undergo ultrasonic cleaning and are vacuum-sealed in cleanroom film or dust-proof tissue. Edges are cushioned with custom high-density EPE foam slots inside impact-resistant wooden cases complying with ISPM-15 export regulations. We frequently ship directly to Copenhagen (CPH) or Billund (BLL) via DHL/FedEx Express (3-5 business days) or sea freight to Aarhus Port for volume orders, backed by cargo transit insurance.
Can you supply inspection certificates and metrology reports with the shipment?
Yes. Every production run is inspected for dimensional tolerances (digital micrometer), surface flatness (laser interferometry checking fringe patterns), and surface roughness (profilometer report). Spectral transmission curves (190nm–3000nm spectrophotometer) and material chemical analysis (ICP-MS purity reports) are available upon request.
What are the import duties and VAT procedures for Denmark?
Imports of quartz plates and fused silica into Denmark fall under HS Codes 7002.31.00 (fused quartz tubes) or 7006.00.00 / 9001.90.00 (optical elements and worked glass plates). For commercial buyers possessing an active Danish CVR number, reverse-charge Danish import VAT (25%) is processed seamlessly via the SKAT customs declaration system.
Do you manufacture custom-drilled or multi-hole quartz plates to customer drawings?
Absolutely. Over 60% of our quartz plates are customized OEM/ODM projects. Using 5-axis CNC ultrasonic engraving equipment, we execute blind holes, stepped through-holes, countersunk apertures, micro-slits, and complex chamfered bevels according to your STEP, DWG, or PDF specifications with positional tolerances down to ±0.02 mm.
What is the difference between synthetic fused silica (JGS1) and natural quartz (JGS2) for our application?
Natural fused quartz (JGS2) is melted from high-purity natural silica sand. It is ideal for thermal sight glasses, furnace viewing windows, and general labware up to 1150°C. Synthetic fused silica (JGS1) is synthesized chemically via silicon tetrachloride (SiCl₄), ensuring almost zero metallic impurities (<5 ppm), complete freedom from bubble inclusions, and superior Deep UV optical transparency (down to 185 nm) required for laser lenses and wafer photomasks.
What is your minimum order quantity (MOQ) for prototypes in Denmark?
We actively support university research teams and prototype development at Danish start-ups and OEMs. Our MOQ for custom cut or polished quartz plates is typically just 2 to 5 pieces. Volume pricing scales efficiently as you transition from prototyping to mass production.
Ready to Order or Request a Custom Quartz Plate Drawing Review?
Connect immediately with VEZLO's optical engineering and export team. Receive comprehensive CAD feasibility verification, spectral guidance, and an official quote within 2 hours.
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