Featured Industrial & Optical Quartz Products
Precision-fabricated components manufactured from semiconductor-grade fused quartz. Available with custom CNC ultrasonic drilling, surface acid-frosting, fine grit sandblasting, and optical edge profiling for immediate export to the Turin manufacturing cluster.
Open Ended Fused Quartz Frosted Glass Cylinder Ingot with Moulding Welding Cutting Services Custom Sizes for Optics Applications
China Supplier High Temperature Transparent UV Quartz Glass Plate Polished Fused Quartz Disc Welding Cutting Optics 1100C Work
Custom Size Clear Fused Quartz Plate Premium Quality High Temperature Resistance (1100C) Glass Sheet for Optics Welding
Polished Clear Quartz Twin Tube Ozone Free Heater Chemical Lab Equipment Semiconductor Furnace Tubes Welding Moulding Bending
Factory Custom High Pressure 99.99% Pure Quartz Glass Tube Bending/Welding Ozone Free Polished Surface
Custom Clear Laboratory High Temperature Twin Tube 99.99% Pure Quartz Glass Tube CVD Furnace Vacuum Bending Welding Services
Custom 99.99% Pure Ozone Free High Temperature Resistant Quartz Glass Reactor Twin Tube Bending Welding Services for Laboratory
Customized High Purity Threaded Transparent UV Quartz Glass Tube with Bending Welding Cutting Moulding Services High Pressure
Material Engineering of Frosted Quartz Glass Discs
Evaluating diffuse transmission dynamics, thermal stress dissipation, and chemical non-reactivity in high-stress industrial applications.
| Physicochemical Parameter | Frosted Fused Quartz Disc | Borosilicate 3.3 Float | Optical Sapphire (Al₂O₃) |
|---|---|---|---|
| Purity (Chemical Composition) | ≥ 99.99% SiO₂ (Trace metals < 20 ppm) | ≈ 81% SiO₂, 13% B₂O₃, 4% Na₂O | ≥ 99.99% Single Crystal Al₂O₃ |
| Continuous Operating Temperature | 1100 °C (Short peaks to 1300 °C) | 450 °C (Short peaks to 500 °C) | 1600 °C – 1800 °C |
| Softening Point (°C) | 1683 °C (Anneal point: 1215 °C) | 820 °C | 2040 °C |
| Coefficient of Thermal Expansion (CTE) | 5.5 × 10⁻⁷ /K (20°C to 320°C) | 3.3 × 10⁻⁶ /K | 5.8 × 10⁻⁶ /K (Parallel to C-axis) |
| Thermal Shock Resistance (ΔT) | > 1000 °C (Water quench without failure) | ≈ 150 °C | ≈ 200 °C |
| Optical Spectral Diffusion Band | 190 nm (Deep UV) to 3500 nm (Near IR) | 310 nm to 2200 nm | 150 nm to 5500 nm |
| Surface Roughness Availability (Ra) | Ra 0.4 µm to 6.3 µm (One or both sides) | Ra 1.2 µm to 3.0 µm | Ra 0.2 µm to 1.5 µm (Diamond lapped) |
| Dielectric Strength (20°C, 1 MHz) | 25 – 40 kV/mm (Excellent insulator) | 16 – 20 kV/mm | 48 kV/mm |
Turin Engineering & Industrial Applications
Supplying critical fused quartz discs directly to the automotive R&D corridors of Mirafiori, the aerospace hubs of Corso Marche, and the photonics laboratories of the Politecnico di Torino.
Automotive Dyno & Hydrogen Test Cells
Turin's prominent powertrain engineering centers (spanning FCA heritage, Stellantis technical clusters, and independent engine design firms in Moncalieri and Rivoli) utilize frosted quartz discs as optical combustion inspection viewports. Sandblasted discs eliminate directional reflections during high-speed camera pyrometry and withstand explosive temperature deltas inside alternative-fuel and hydrogen combustion test chambers.
Aerospace Payload & Thermal Shields
Under the Turin Aerospace District (Distretto Aerospaziale del Piemonte) and aerospace contractors located near Caselle and Corso Marche, frosted quartz discs act as radiative heat attenuators and space-simulation vacuum chamber windows. Their optical homogeneity ensures zero off-gassing and complete spectral stability under hard vacuum and intense cosmic UV flux simulators.
Metrology & Spectrophotometry at INRiM
Located along Strada delle Cacce, INRiM (Istituto Nazionale di Ricerca Metrologica) establishes baseline reference standards for radiometric and photometric calibration. Our acid-frosted fused silica discs serve as master cosine diffusers in precision integrating spheres, transforming high-coherence laser beams into uniform, unpolarized planar illumination across wide spectral bands.
Piedmont Vacuum Heat Treatment & CVD
Specialized metal-finishing and surface-coating enterprises in Grugliasco, Chieri, and Settimo Torinese deploy heavy-duty frosted quartz discs as furnace observation ports and thermal isolation barriers. The micro-textured surface scatters blinding incandescent infrared radiation, shielding instrumentation sensors and human operators from ocular glare while containing furnace atmospheres up to 1100°C.
Technological Transformation in Northern Italy
How emerging clean energy transitions, microelectronics packaging, and additive laser manufacturing are elevating fused quartz quality standards across the Turin-Milan industrial axis.
Electric Vehicle Battery & Fuel Cell Thermal Validation
As Piedmont accelerates investments in battery gigafactories and fuel cell validation test rigs, battery cell development requires transparent thermal enclosures capable of containing thermal runaway events. Frosted quartz discs allow high-framerate infrared thermography without the specular reflection common to polished glass, enabling precise tracking of thermal propagation patterns up to 1000°C.
Industrial Laser Sintering & Photonic Beam Homogenization
Turin's leadership in metal additive manufacturing and laser tooling demands beam-shaping optics that do not deform under multi-kilowatt fiber laser exposure. Fine-frosted fused silica components act as robust optical homogenizers that redistribute Gaussian laser beam energy profiles into uniform "top-hat" energy distributions, eliminating localized hot spots during cladding and powder sintering.
Green Chemistry & Sustainable Semiconductor Processing
With stringent EU chemical directives (REACH / RoHS) governing industrial research along the Po River basin, academic and private laboratories are moving away from reactive metals and plastics. Our 99.99% high-purity quartz discs offer zero ion-leaching, imperviousness to all acids (excluding hydrofluoric), and seamless compatibility with ultra-pure chemical processes.
Why Turin Procurement Chooses Zelvo Quartz
Combining the raw crystal abundance of Donghai County with precision CNC processing, verified export compliance, and direct factory-to-laboratory engineering communication.
High-Purity Silicon Dioxide
Sourced and refined at China's Crystal Capital (Donghai, Jiangsu). Certified ultra-low bubble classification, zero inclusion defects, and trace hydroxyl (OH) levels controlled per engineering order.
Rapid Technical Response
Direct interaction with senior quartz processing engineers. Instant feasibility assessments for complex CAD/STEP drawings, custom bevels, laser drilling, and bespoke grit textures.
Buyer Reorder Loyalty
Proven track record across research institutions and OEMs in Southern Europe and North America. High repeatability across batch-to-batch thickness, flatness (< λ/4), and surface roughness.
Flexible MOQ & Safe Crating
Prototyping orders starting from a single disc. Packaged in customized shock-absorbing closed-cell EPE foam and ISPM 15 certified timber cases, ensuring zero transit breakage into Turin freight hubs.
Turin Buyer FAQ: Procurement, Customs & Specs
Clear answers to frequent questions from engineering procurement leads and supply chain managers in Italy.
We regularly ship under DAP and DDP terms directly to your factory doors in Piedmont. Small to medium prototype consignments fly via express air freight (DHL/FedEx) arriving at Torino-Caselle (TRN) or Milano-Malpensa (MXP) in 4–7 business days. Bulk industrial shipments travel by ocean freight to Genoa Port (Porto di Genova) or La Spezia, followed by bonded overland transit to the Interporto di Torino (SITO Orbassano) logistics terminal.
Yes. While our standard manufacturing tolerance for outer diameter and thickness is ±0.1 mm, our precision CNC grinding, optical edge-chamfering, and ultrasonic core-drilling lines can achieve tight engineering tolerances down to ±0.02 mm (ISO 2768-Fine/f). We routinely fabricate stepped discs, center through-holes, recessed counterbores, and mitered perimeter bevels.
Borosilicate glass breaks if subjected to sudden temperature shocks exceeding 150°C. In contrast, fused quartz features an ultra-low expansion rate (5.5 × 10⁻⁷ /K). A frosted quartz disc can be heated to 1100°C and plunged directly into ice water without cracking. This makes it indispensable for thermal shock observation, pyrometry calibration, and furnace blast barriers in Piedmont metalworking facilities.
We offer customized microtopography based on your exact optical or adhesion targets. Options range from delicate satin acid-etching (Ra 0.6 – 1.2 µm, delivering high diffused light transmission with low backscattering) up to coarse pneumatic grit blasting using pure alumina or silicon carbide (Ra 2.5 – 5.5 µm, ideal for extreme anti-glare, plasma spray masking, or optical beam dispersal).
Yes. Every export delivery can be accompanied by an inspection certificate detailing dimensional verification (CMM/micrometer checks), surface roughness profilometer readouts, and an ICP-MS chemical composition sheet verifying SiO₂ purity ≥ 99.99%. We also supply RoHS and REACH self-declaration compliance documentation required by Italian industrial entities.
We implement a five-tier export packaging protocol: individual dust-free film wrapping, static-dissipative vacuum sealing, high-density shock-absorbing EPE foam cradles tailored to disc diameters, intermediate reinforced corrugated buffering, and an outer non-fumigation plywood crate secured with high-tensile steel strapping. Breakage rates remain below 0.1% across all European shipments.