Featured Fused Silica Sheets & Optical Quartz Plates
Direct-from-factory optical substrates, boiler sight glasses, high-pressure inspection ports, and specialized quartz tubing manufactured under ISO 9001:2015 certified tolerances for Madrid engineering hubs.
Quartz Plate with Center Hole Fused Silica Clear Polished Custom Size
- CNC Core Hole ±0.05 mm tolerance
- Double-side 80/50 to 20/10 optical polish
- Ideal for sensors, laser nozzles, flanges
Quartz Glass Plate for Optical Window Fused Silica High Transmittance
- Transmission >92% (190 nm–2500 nm)
- Surface Flatness: λ/4 to λ/10 @ 632.8 nm
- JGS1 / JGS2 optical grade synthesis
Quartz Observation Window Plate Fused Silica High Pressure Clear
- Tensile rating up to 50 MPa rupture test
- High compressive safety for pilot plants
- Acid-proof inertness against organic vapors
Large Diameter Clear Quartz Borosilicate Glass Tube round Fused Silica Bubble Pipe for Bending and Welding
- OD spans from 50 mm to 520 mm capability
- Precision wall consistency & fire-polished ends
- Excellent for thermal diffusion chambers
Quartz Plate for Laboratory Fused Silica Clear Heat Resistant Custom
- Resists rapid quench 1100°C to ice water
- Thickness calibrated: 0.5 mm up to 50 mm
- Bio-inert, cleanroom vacuum packed
Square Quartz Plate Fused Silica Sheet Beveled Edge Polished Custom Size
- Precision C-chamfer or 45° safety beveling
- Chip-free perimeter edge ground
- Customized dimensions up to 1000 × 1000 mm
Quartz Viewport Glass Plate Vacuum Chamber Fused Silica Custom Size
- Helium leak detection <1 × 10⁻¹⁰ mbar·l/s
- Compatible with CF, KF, and ISO flanges
- Negligible fluorescence under UV excitation
Quartz Plate for Boiler Sight Glass Fused Silica Heat Resistant
- Continuous steam erosion resistance
- Zero clouding under sudden pressure spikes
- High-transparency crystal clarity
Localized Application Scenarios in Madrid’s Advanced Clusters
Connecting China’s mineral and crystal melting capital in Donghai directly with the Comunidad de Madrid's high-tech manufacturing, defense aerospace corridor, and academic research institutions.
Aerospace & Defense Corridors (Getafe & Torrejón)
Madrid hosts the nucleus of Spain’s aerospace sector along the South-East Axis (Getafe, San Fernando de Henares, Torrejón de Ardoz), anchoring Tier-1 suppliers for Airbus, CASA, and INTA. Our high-purity fused silica plates serve as ultra-low thermal expansion sensor covers, spaceborne solar cell substrates, high-speed aerodynamic pyrometry windows, and thermal barrier test viewing ports rated to 1100°C without optical deformation.
Photonics, Laser & Quantum Physics (Tres Cantos & CSIC)
Clustered around the Tres Cantos Technology Park, the Autonomous University of Madrid (UAM), and the Spanish National Research Council (CSIC - Instituto de Óptica), Madrid researchers require optical window plates with minimal wavefront distortion. Synthetic fused silica (JGS1) exhibits superior bubble-class 0 transmission down to 185 nm deep UV, enabling high-damage-threshold output windows for 1064 nm Nd:YAG and femtosecond industrial processing lasers.
Pharma & High-Pressure Chemistry (Alcobendas & San Blas)
The pharmaceutical belt around Alcobendas, San Sebastián de los Reyes, and the Julian Camarillo tech zone relies on aggressive organic solvent synthesis and sterile bio-processing. Our fused silica observation plates and sight discs resist all industrial acids (except HF and hot phosphoric acid), guaranteeing non-leaching, pyrogen-free purity and absolute mechanical stability inside autoclave vessels and supercritical fluid extraction columns.
Madrid & Spain: Regional Procurement Dynamics & Lead Time Optimization
Spanish industrial procurement officers face rising pressure from supply-chain bottlenecks and escalating intermediary markups across continental Europe. Sourcing custom fused silica plates from traditional European stockists often introduces 10 to 16-week lead times and heavy distributor markups. By establishing a factory-direct link with our Donghai manufacturing base, Madrid procurement teams capture direct raw material economics, high-purity sand verticalization, and sub-2-hour engineering turnarounds.
Shipments destination Madrid-Barajas Adolfo Suárez Airport (MAD) are dispatched with export shock-indicator packaging via express air freight (4-6 business days door-to-door DDP), or coordinated through container logistics via the Port of Valencia with dedicated bonded transport to the Coslada Dry Port (Puerto Seco de Madrid).
Procurement Specification Checklist
- Thermal Gradient: Continuous exposure up to 1100°C; peak short-term excursion 1350°C.
- Transmission Waveband: Specify JGS1 (UV), JGS2 (Optical visible), or JGS3 (Infrared/NIR).
- Geometric Tolerances: Thickness ±0.02 mm, CNC edge profile 45° chamfer to prevent edge chipping.
- Optical Precision: Scratch-Dig standard 40/20 or 20/10, Flatness λ/4 per 25 mm aperture.
- Export Quality Assurance: Vacuum heat-sealed anti-static cleanroom pack inside wooden crate.
Fused Silica vs. Borosilicate vs. Commercial Quartz Glass
Evaluate fundamental physical, thermal, and optical parameters to select the exact material grade for your Madrid operational apparatus.
| Property Parameter | Synthetic Fused Silica (JGS1) | Fused Quartz (JGS2 Optical) | Infrared Fused Quartz (JGS3) | Borosilicate Glass 3.3 |
|---|---|---|---|---|
| SiO₂ Purity Grade | ≥ 99.999% Semiconductor | ≥ 99.99% Standard | ≥ 99.99% | Approx. 81% SiO₂, 13% B₂O₃ |
| Optical Transmission Range | 185 nm – 2500 nm (Deep UV) | 260 nm – 2500 nm (UV-Vis) | 260 nm – 3500 nm (Low OH) | 350 nm – 2000 nm |
| Coeff. of Thermal Expansion (CTE) | 5.5 × 10⁻⁷ / °C (20–320°C) | 5.5 × 10⁻⁷ / °C | 5.5 × 10⁻⁷ / °C | 33 × 10⁻⁷ / °C (6× Higher) |
| Max Continuous Working Temp | 1100 °C | 1100 °C | 1100 °C | 450 °C (Softens prematurely) |
| Thermal Shock Resistance | 1100°C water quench: No rupture | 1100°C water quench: Stable | 1100°C water quench: Stable | Max ΔT = 150°C (Risk of shatter) |
| Bubble & Inclusion Class | Class 0 (Virtually bubble-free) | Class 1 / Class 2 | Class 1 | Industrial standard tolerances |
| Refractive Index (nd @ 589 nm) | 1.458 | 1.458 | 1.458 | 1.473 |
| Hydroxyl (OH) Content | < 5 ppm to 1200 ppm (Grade specific) | 150 – 200 ppm | < 5 ppm (No OH absorption band) | Not applicable |
Why European Industry Partners Choose Our Factory
Integrating raw mineral purification, electric & oxyhydrogen continuous melting, CNC multi-axis cold machining, and strict optical testing in China’s premier quartz manufacturing capital.
33,000 m² Production Campus
Situated in Donghai County (Jiangsu Province), our 50-mu facility leverages the world’s most comprehensive natural crystal and high-purity silica sand processing cluster. With fixed assets exceeding RMB 10 million and an annual production value of US$1–2.5 million, we ensure uncompromised material supply chain independence from raw sand purification to precision sheet polishing.
Provincial S&T & 520 mm Pioneer
Our 320 mm high-purity quartz tube for ultra-large-scale integrated circuits was completed as an official Jiangsu Provincial Science & Technology Support Project. Furthermore, our newly developed 520 mm large-diameter high-purity quartz tube has passed the preliminary national new product appraisal, qualifying us as an advanced global supplier for semiconductor diffusion and oxidation lines.
Multi-Axis CNC & Flame Craftsmanship
Equipped with high-precision CNC contour grinders, ultrasonic internal drilling machines, optical double-sided planetary polishers, and master hot-working quartz blowers. We hold strict dimensional tolerances down to ±0.02 mm, surface roughness Ra < 0.5 nm, and provide laser engraving, optical coatings (AR/BBAR), and custom metal-to-quartz vacuum seals tailored to engineering blueprints.
Frequently Asked Questions by European Buyers
Authoritative answers on customs duties, Spanish delivery logistics, material test reports, and quality validation.
What is the typical shipping lead time and customs process for Madrid orders? +
How do I determine whether my project requires synthetic fused silica (JGS1) or fused quartz (JGS2)? +
Can you manufacture custom-sized fused silica sheets with chamfered edges and laser-cut apertures? +
What quality documentation and inspection reports accompany each shipment to Spain? +
How do you guarantee that fragile quartz sheets arrive intact without micro-cracks? +
What is the minimum order quantity (MOQ) and sample prototyping policy? +
Ready to Accelerate Your Optical & Thermal Engineering in Madrid?
Submit your custom specifications, mechanical drawings, or procurement tender requirements. Our bilingual engineering team reviews thermal tolerances, optical grades, and machinability with an average response time of under 2 hours.