Precision Fused Quartz Components Ready for Drawing Verification
Engineered from synthetic SiO₂ (JGS1) and natural high-purity crystalline quartz (JGS2/JGS3) with thermal tolerance up to 1300 °C, precision ground and laser machined to micron tolerances.
Custom High Pressure Quartz Glass Ampoules
- Purity: 99.99% SiO₂ Grade
- Tolerance: ±0.05 mm standard
- Features: Ozone-free, high chemical seal
Customizable High-Purity Quartz Glass Twin Tube
- Process: Flame bending & welding
- Finish: Fire-polished optical grade
- Application: IR emitter, fast heating
Circular Fused Quartz XRD Sample Holder
- Clarity: Zero background noise XRD
- Geometry: Laser-cut shallow wells
- Surface: Optical scratch-dig 40/20
High Temperature Fused Quartz Plate Sheet
- Resistance: 1100 °C continuous service
- Transmission: UV-VIS-NIR spectrum
- Option: Laser drilled & stepped
Custom Coated High-Purity Quartz Rings
- Environment: Semiconductor CVD & Etch
- Coating: Dielectric & AR available
- Contamination: Low metallic impurities
Customized High-Pressure Clear Quartz Tube
- Bore Size: Standard and custom OD
- Fabrication: Flanging, necking, slotting
- Strength: Thermal shock verified
Heat Resistant Fused Quartz Twin Tube
- Profile: Dual chamber configuration
- Quality: Ozone-free fusion points
- Thermal: Annealed stress relieved
Fused Quartz Frosted Glass Cylinder Ingot
- Treatment: Sandblasted / Ground matte
- Dimensions: Large diameter stock
- Usage: Optical diffusion, furnaces
Fused Quartz Rods: Material Physics, Refractive Properties & Tolerances
A deep engineering overview for optical engineers and process architects designing reactors, light guides, and high-temperature diagnostic probes in the Rhine-Knee tri-border research belt.
| Physical & Thermal Property | Fused Quartz (JGS2/JGS3) | Synthetic Silica (JGS1) |
|---|---|---|
| Purity (SiO₂ Weight %) | ≥ 99.99% | ≥ 99.9999% |
| Density | 2.20 g/cm³ | 2.201 g/cm³ |
| Softening Point | ~1683 °C | ~1730 °C |
| Continuous Service Temp | 1100 °C | 1150 °C |
| Max Peak Temp (<10 min) | 1300 °C | 1350 °C |
| Thermal Expansion (CTE, 20-300°C) | 5.5 × 10⁻⁷ /°C | 5.2 × 10⁻⁷ /°C |
| Transmission Range (T ≥ 80%) | 220 nm – 2500 nm | 185 nm – 2500 nm (Deep UV) |
| Refractive Index (nd at 589.3 nm) | 1.4585 | 1.4584 |
| Hydroxyl (OH⁻) Content | < 30 ppm (JGS3 < 5 ppm) | < 1200 ppm |
Optical-Grade Transmission Thresholds
Solid fused quartz rods serve primarily as wave-guiding cores or rigid structural elements in UV photochemistry. Choosing between synthetic silicas (JGS1) and natural fused quartz (JGS2) determines whether solarization and absorption occur below 220 nm in analytical sensors.
Thermal Shock & Zero Phase Change
With an extremely low CTE of 5.5 × 10⁻⁷ /°C, a fused quartz rod can be cycled from 1100 °C and submerged into room-temperature water without microscopic stress fracture, a mandatory safety factor for thermal process pilot plants in Basel-Landschaft.
Micromachining & Fire-Polishing Tolerances
Using diamond turning, laser grooving, and CNC core drilling, quartz rods are finished with outer diameter tolerances within ±0.02 mm, surface roughness Ra < 0.2 nm (super-polished), and ground end-faces perpendicular to within 15 arcminutes.
Top 10 Quartz Rod Manufacturers & Suppliers in Basel (2025 Evaluation)
An authoritative breakdown evaluating fabrication capacity, chemical trace purity, customized grinding capabilities, and logistics lead-times for Basel’s biomedical and chemical processing hubs.
1. Zunex Quartz Products Co., Ltd.
Global source factory based in Donghai with direct logistics distribution serving Swiss research institutes. Specializes in custom drawing fabrication, precision laser core drilling, ground optical rods, and high-purity SiO₂ components with zero minimum lot constraints.
2. Heraeus Conamic Swiss Logistics
Regional technical supplier known for natural and synthetic fused silica ingots, heavy bore rods, and semiconductor quartz ware catering to high-tier industrial reactors across the Swiss cantons.
3. SwissOptic Basel Distribution
Specializes in precision-polished quartz rods and light guides utilized in high-speed optical diagnostics, laser-based analytical instrumentation, and biomedical photonics in the Basel-Stadt area.
4. QSIL Fused Quartz CH Desk
High-temperature furnace tubes, clear fused quartz rods, and custom flame-worked assemblies supplying research and production facilities throughout the Basel-Muttenz industrial zone.
5. Borer & Partner Laborkomponenten Basel
Regional distributor supplying quartz rods, stirring rods, micro-capillaries, and fused silica analytical hardware tailored for wet chemical synthesis and quality assurance laboratories.
6. Schott Suisse Glass Technology
Known across the DACH region for borosilicate and technical quartz products, delivering extreme thermal shock-resistant materials for optical inspection windows and high-pressure probe cells.
7. Tri-Border Quartz Tech Services
Operating near Saint-Louis and Basel, offering rapid CNC diamond grinding, edge profiling, and thermal flame annealing for fragile fused silica and quartz rods destined for experimental pilot reactors.
8. Rheintal Glas & Quartz Apparate
Custom glassblowers and quartz fabricators delivering reaction vessels, structural support rods, and immersion heater quartz casings for specialized chemical engineering lines.
9. Helvetic Quartz & Photonics AG
Focused on laser beam shaping, fused silica rod lenses, and fiber delivery preforms, delivering high damage threshold silica components for high-intensity analytical physics applications.
10. Alusuisse Glass & Quartz Components Basel
Industrial procurement group supplying solid structural quartz rods for heavy metallurgy, non-ferrous foundry level measurements, and high-temperature thermal barrier shields across Northern Switzerland.
High-Purity Quartz Rod Applications Across the Greater Basel Region
From Novartis Campus research lines to continuous chemical plants along the Rhine River, custom fused silica rods provide the inert structural backbone for demanding operational conditions.
API Synthesis & Pharma
Zero leaching of heavy metals or alkali elements. Quartz rods are utilized in active pharmaceutical ingredient reactors as inert structural spacers, level sensing guides, and stirrer shafts.
UV Photochemistry & Flow
Deep UV transparency (down to 185 nm with JGS1) enables quartz rods to channel high-intensity UV irradiation into microfluidic photoreactors without photochemical degradation or internal fogging.
Continuous High-Temp Kilns
Used as push rods, thermocouple protection armatures, and thermal structural supports in vacuum furnace installations, maintaining dimensional integrity under continuous 1100 °C exposure.
Semiconductor & Optoelectronics
Serving cleanroom wafer fabrication lines as support racks, transfer pins, and optical reference rods that resist corrosive acid etching solutions (HF excluded) and vapor contaminants.
Why Basel Technical Buyers Partner with Zunex Quartz
Combining the mineral resource advantages of Donghai—the world’s quartz processing capital—with advanced European precision machining standards and direct export logistics.
Custom Processing to Drawing
Send standard engineering files (CAD, STEP, DWG, or PDF). Every dimension, grinding tolerance, and flame polish spec is checked for manufacturing feasibility by a senior glass technologist before quoting.
Advanced Laser Finishing
Precision CNC diamond grinding, ultrasonic micro-hole drilling, circular grooving, and clean-edge laser cutting minimize micro-fissures and thermal edge tension, ensuring extended operational lifespans.
Zero-Breakage Export Packaging
High-fragility quartz rods require specialized multi-layer suspension packing. We utilize high-density polyurethane shock-absorbing foam molds and reinforced export crates with full transit insurance directly to Basel.
Frequently Asked Questions on Quartz Rod Procurement in Basel
Practical answers addressing customs clearance into Switzerland, tolerance certifications, optical grade selection, and chemical compliance for industrial and laboratory procurement teams.
What are the customs clearance considerations when importing quartz glass rods into Basel, Switzerland?
How do I determine whether my Basel facility needs JGS1 synthetic silica or JGS2 natural quartz rods?
Can Zunex manufacture small prototype batches or single custom test rods to Swiss specifications?
What dimensional tolerances can be achieved on custom-cut and ground quartz rods?
How is product breakage prevented during long-range air and sea freight to Northern Switzerland?
Ready to Verify Your Quartz Drawing & Technical Specs?
Share your required dimensions, purity grade (JGS1/JGS2/JGS3), and tolerance parameters. Our engineering department will evaluate manufacturability and furnish a direct quotation within 2 hours.