High-Purity Quartz Solutions Ready for Nordic Dispatch
Manufactured under strict ISO quality controls from premier SiO₂ raw materials. Each component meets exacting dimensional tolerances (±0.02 mm) and ultra-trace metal limits required by Gothenburg's precision engineering clusters.
Factory-Made High-purity Small Size Quartz Wafer, Cutting & Polishing Services
- Purity (SiO₂)≥99.999%
- Surface RoughnessRa < 0.5 nm
- Tolerance±0.01 mm
- ApplicationMEMS & Optoelectronics
Fused Transparent Quartz Tube
- Max Temp (Continuous)1150 °C
- Softening Point1683 °C
- Hydroxyl Content< 15 ppm
- ApplicationCVD & Thermal Oxidation
Customized Perforated Quartz Tube
- Hole Diameter0.3 mm – 20 mm
- Hole Pitch Tolerance±0.05 mm
- ProcessingLaser / Ultrasonic CNC
- ApplicationGas Dispersion & Etch
High Temperature Transparent Quartz Cylinder Tube Clear Glass
- Wall Thickness2.0 mm – 15.0 mm
- Outer DiameterUp to 450 mm
- FinishFire-Polished Ends
- ApplicationFurnace Sight Glass
High-Purity Ultra-Thick Quartz Double-Layer Step Plate
- StructureStepped Multi-Tier
- Flatnessλ/4 per 100mm
- Optical GradeJGS1 / JGS2 Optional
- ApplicationPlasma Chamber Windows
Helical Clear Quartz Glass Coil Tube
- Coil PitchUniform CNC Bent
- Bending RadiusCustom to Drawing
- Thermal Expansion5.5 × 10⁻⁷ /°C
- ApplicationImmersion Fluid Heating
High-Purity Quartz Glass Petri Dishes with Lids
- Corrosion ProofResistant to HF acids
- ClarityDeep UV Transmittance
- SterilizationAutoclavable > 1100 °C
- ApplicationBio-Pharma & Cell Culture
Clear Quartz Spiral Tube for Optics Laboratory Use
- FormingPrecision Thermal Lathe
- Birefringence< 5 nm/cm after Anneal
- Surface PolishFire-Polished Optical
- ApplicationPhotochemical Reactors
Understanding Fused Quartz Grades for Nordic Industrial Applications
Selecting the optimal silica grade prevents expensive over-specification or catastrophic thermal-mechanical failure in corrosive, ultra-clean, or high-temperature processing environments.
Natural Fused Quartz vs. Synthetic Fused Silica (JGS1, JGS2, JGS3)
High-purity quartz (HPQ) is synthesized or refined from natural crystalline quartz or synthetic silicon tetrachloride precursors (SiCl₄). In Gothenburg’s precision technology sector—ranging from cleanroom research at Chalmers to high-power semiconductor packaging in the automotive supply chain—choosing between natural fused quartz and synthetic fused silica determines thermal stability, laser damage threshold, and transmission spectra.
Natural Fused Quartz (JGS2 / JGS3): Electric or flame-melted from purified natural crystalline silica (≥99.99% SiO₂). It exhibits superior structural viscosity at temperatures above 1000 °C and resistance to sagging, making it ideal for furnace process tubes, epitaxial reactor chambers, and thermal oxidation boats.
Synthetic Fused Silica (JGS1): Formed via gas-phase chemical vapor deposition (CVD) or flame hydrolysis. It boasts an ultra-pure composition with total metallic impurities below 0.5 ppm. Free from bubble inclusions and striae, JGS1 offers unrivaled optical transmission deep into the ultraviolet range down to 185 nm.
Typical Physical & Thermal Properties Matrix
| Property | Metric Value | Test Standard |
|---|---|---|
| Density | 2.20 ± 0.01 g/cm³ | ASTM C693 |
| Mohs Hardness | 5.5 – 6.5 | Mohs Scale |
| Softening Point | 1683 °C | ASTM C338 |
| Annealing Point | 1215 °C | ASTM C336 |
| Strain Point | 1120 °C | ASTM C336 |
| Continuous Service Temp | 1100 °C | Long-term static |
| Peak Temp (Short Burst) | 1450 °C | Thermal cycle < 30 min |
| Dielectric Strength (20°C) | 25 – 40 kV/mm | ASTM D149 |
| Optical Silica Grade | Transmission Bandwidth | Hydroxyl (OH) Content | Total Metallic Impurities | Primary Industrial Use Cases in Sweden |
|---|---|---|---|---|
| JGS1 (Synthetic Fused Silica) | 185 nm – 2500 nm (Deep UV to NIR) | < 5 ppm or > 1200 ppm (Grade dep.) | < 0.5 ppm total | Excimer lasers, semiconductor stepper optics, UV photolithography, Chalmers quantum lab windows |
| JGS2 (Optical Fused Quartz) | 220 nm – 2500 nm (Standard UV-Vis) | 15 – 30 ppm | < 15 ppm total | Inspection sight glasses, wafer substrate carriers, optical spectrometers, medical UV water reactors |
| JGS3 (Infrared Fused Quartz) | 260 nm – 3500 nm (Vis to Full IR) | < 5 ppm (Water-free) | < 20 ppm total | Thermal pyrometry viewing ports, IR emitter envelopes, gas chromatography cells, aerospace heat shields |
| Semiconductor Fused Quartz | Visual - Process Spectrum | < 20 ppm | < 10 ppm (Al < 6, Fe < 0.2) | LPCVD diffusion furnace tubes, SiC / GaN wafer boats, plasma etching chamber rings, thermocouple sheaths |
Serving Gothenburg's Deep-Tech, Automotive & CleanTech Sectors
From the laboratories of Johanneberg and Lindholmen to the industrial plants of Hisingen and Mölndal, Nivra Quartz supplies tailored components engineered to Nordic cleanroom and manufacturing standards.
Gothenburg & Nordic High-Purity Quartz Market Trends (2025–2030)
Strategic technology developments reshaping demand patterns, regulatory compliance, and supply chain protocols for industrial quartz in Scandinavia.
Donghai County Nivra Quartz Products Co., Ltd.
Combining raw mineral supremacy in China's quartz capital with ultra-precision CNC cold-working and flame-lathe mastery to deliver world-class components to international engineering leaders.
Origin Material Strength
Situated in Donghai County, Jiangsu—the epicentre of global silica refining—we source premier natural crystal rock directly, slashing intermediate material markups and guaranteeing raw purity.
Full-Chain In-House Processing
From diamond wire cutting, ultrasonic CNC milling, and planar chemical-mechanical polishing (CMP) to glassblower torch welding and 1250 °C vacuum annealing, all steps remain strictly in-house.
Responsive Engineering Support
With an inquiry response rate of 88.89% and engineering consultations provided in under 5 hours, our technical team evaluates CAD/STEP files with complete GD&T feasibility reviews.
Nordic Export-Proof Packing
Every quartz part undergoes class-100 cleanroom washing, PE double-vacuum bag sealing, high-density form-fitting EPE suspension foam, and reinforced plywood export casing.
Frequently Asked Questions for Gothenburg Buyers
Practical technical, regulatory, and logistics answers for procurement managers, cleanroom directors, and research engineers sourcing quartzware in Western Sweden.
How do we select between JGS1, JGS2, and JGS3 quartz for Gothenburg laboratory applications?
Selection depends entirely on your operational wavelength, hydroxyl (OH) sensitivity, and thermal budget:
1. JGS1 (Synthetic Fused Silica): Essential if your application involves deep ultraviolet radiation (185 nm – 250 nm), excimer lasers (KrF 248 nm, ArF 193 nm), UV photolithography, or high-fluence optical setups at Chalmers research facilities. It has zero bubble inclusions and no transmission drop in the UV spectrum.
2. JGS2 (Fused Quartz): The workhorse material for general optical windows, sight glasses, spectroscopic cuvettes, and standard cleanroom inspection covers. It operates effectively from 220 nm up to 2500 nm.
3. JGS3 (Infrared Fused Quartz): Formulated with a special vacuum-melting process to achieve an ultra-low hydroxyl content (< 5 ppm). This eliminates the prominent OH absorption band at 2730 nm, allowing continuous optical transmission up to 3500 nm—perfect for pyrometry viewing ports, IR heat lamps, and moisture-sensitive optical diagnostics.
What are the dimensional tolerances and surface finishes achievable on custom quartz components?
Nivra Quartz utilizes 5-axis ultrasonic CNC machinery and precision double-sided polishing stations. We can reliably achieve:
• Diameter / Thickness Tolerance: Down to ±0.01 mm for precision optical wafers, discs, and step plates; standard tolerance of ±0.05 mm to ±0.1 mm for heavy-wall furnace tubes.
• Surface Flatness: λ/4 to λ/10 per 25 mm diameter measured via laser interferometry.
• Surface Quality / Polish: Optical pitch-polished finishes meeting MIL-PRF-13830B standards up to 20/10 Scratch-Dig, with surface roughness Ra < 0.5 nm (cleanroom CMP grade).
• Fire-Polishing & Annealing: High-temperature torch flame-polishing is applied to cut edges to eliminate micro-fractures, followed by polarimeter-verified stress relief annealing (< 5 nm/cm residual birefringence).
What is the lead time and shipping route for deliveries to Gothenburg (Göteborg)?
We serve customers across Western Sweden using two main logistics avenues depending on project urgency:
• Express Air Cargo (Landvetter Airport - GOT): Standard prototypes, custom optical wafers, and replacement tubes ship via DHL, FedEx, or dedicated air freight with a door-to-door transit time of 5 to 8 business days.
• Ocean Freight (Port of Gothenburg - Skandiahamnen): Full-crate industrial orders, large diffusion cylinders, and bulk batches of laboratory consumables are containerized and dispatched directly into Gothenburg Harbor in 28 to 35 days.
All international consignments are provided with complete commercial invoices, HS code declarations (Chapter 70), and certificates of origin for swift customs clearance under Sweden's Tullverket regulations.
How do you guarantee that fragile quartz glass parts arrive unbroken during Nordic winter transport?
With thousands of fragile consignments exported globally, our multi-stage export packaging protocol virtually eliminates transit breakage:
1. Ultrasonic Cleaning & Vacuum Bagging: Parts are cleaned to eliminate abrasive debris, then vacuum-sealed in anti-static PE bags.
2. High-Density Shock Isolation: Each component is suspended in custom-cut, high-resilience expanded polyethylene (EPE) foam dampening structures with a minimum 50 mm clearance from the outer box wall.
3. Heavy-Wall Tubular Packaging: Long furnace tubes (up to 2000 mm) are supported with internal structural foam plugs to eliminate resonance vibration during transit.
4. Fumigation-Free Plywood Crates: Exterior packaging consists of heavy-duty, moisture-sealed plywood crates secured with steel banding and shock/tilt sensors.
How does high-purity quartz behave in corrosive chemical environments (acids and bases)?
Fused quartz exhibits almost universal chemical inertness against acidic and neutral solutions. It remains completely unaffected by hydrochloric acid (HCl), nitric acid (HNO₃), sulfuric acid (H₂SO₄), and aqua regia even at boiling temperatures.
Notable Exceptions: Hydrofluoric acid (HF) and hot concentrated phosphoric acid (H₃PO₄ > 150 °C) vigorously attack silica. Furthermore, strong alkaline solutions (such as concentrated NaOH or KOH) will gradually etch quartz at elevated temperatures (> 60 °C). For semiconductor cleanrooms utilizing RCA cleans or piranha solutions, fused quartz provides unmatched durability without bath contamination.
Can Nivra Quartz manufacture parts from custom customer technical drawings (PDF/CAD)?
Yes, OEM and ODM customized fabrication accounts for over 75% of our production volume. Customers routinely send technical engineering drawings in PDF, DWG, DXF, or 3D STEP/IGES formats.
Our engineering department reviews the geometry, edge chamfers, flame-worked transitions, and thermal expansion factors, returning a formal manufacturability appraisal, material grade validation, and cost quotation within 5 hours.
Have a Custom Quartz Project for the Gothenburg Region?
Whether you require a single high-precision prototype for Chalmers laboratory evaluation or containerized batches of diffusion furnace tubes for industrial manufacturing, our engineers are standing by to review your drawings.