99.99% SiO₂
Direct Factory Catalog
Precision-Engineered Optical Quartz Solutions
Sourced from high-purity natural silica sand (≥99.99% SiO₂) and synthetic silicon precursors, our ISO-controlled manufacturing guarantees extreme thermal stability, chemical inertness, and superior optical transmittances across DUV to NIR wavelengths.
Semiconductor
Laser Grade
Capillary
1400°C Resistance
JGS1 / JGS2
Threaded CNC
Photovoltaic
Authority & Reliability
Full Industrial Chain Control: The Lovri Advantage
Situated in the heart of China's world-leading quartz processing hub in Lianyungang, we control the entire pipeline from raw silica selection to sub-micron optical CNC finishing, assuring complete traceability and batch consistency.
Upstream Ore Refinement
In-house 200-mesh pulverizing and high-purity continuous multi-stage acid pickling systems eliminate transition trace metals (Fe, Cu, Ni < 0.1 ppm), securing unparalleled UV transmittance and structural lattice density.
CNC Multi-Axis Processing
Ultra-rigid CNC milling, surface grinding, diamond drilling, thread cutting, and robotic flame lathe welding ensure strict compliance with complex customer drawings supplied in DWG, DXF, or STEP format.
Thermal Annealing & Stress Testing
Every customized component undergoes a programmable 1215°C vacuum annealing thermal cycle, followed by 100% polarization stress testing to eradicate structural birefringence and stop furnace devitrification.
SGS Verified & Export Compliant
Our 14,271 m² operational facility is onsite-assessed and verified by SGS Group. We supply full RoHS certifications, CE marks, and utilize shock-proof custom foam-in-place crating for air and sea export worldwide.
Strategic Market Insights
Future Trends in Optical Quartz Procurement & Manufacturing
As semiconductor wafer scales broaden to 300mm+ and laser outputs surpass multiple kilowatts, optical quartz transitions from passive glass enclosures to precision functional materials.
Sub-ppm Impurity Demands in Sub-3nm Fabs
Next-generation semiconductor nodes (FinFET, GAA) demand synthetic quartz wafer vessels with virtually non-existent alkali and aluminum concentrations. Sodium, potassium, and lithium migration under 1150°C rapid thermal processing (RTP) must be prevented through hyper-purified plasma deposition methods.
- Elimination of trace elements reducing wafer contamination risk.
- Zero hydroxyl (OH-) profiles for high-performance infrared lamp sleeves.
- Synthetic fused silica (JGS1) replacing classical natural fused quartz in critical lithography optical paths.
Monolithic Micro-Fluidic & Multi-Bore Precision
In bio-photonics and high-power diode laser arrays, assembled multi-component glass apparatuses are aggressively replaced by single-piece monolithic quartz components to avoid seal degradation under corrosive chemical and UV exposure.
- Triple-bore and multi-channel laser flow cooling tubes with ultra-tight concentricity.
- Femtosecond laser direct etching for micro-channels without micro-crack initiation.
- Double-side optical pitch polishing achieving sub-angstrom surface roughness levels.
Total Traceability & Cleanroom Packaging
Procurement departments across North America, Europe, and East Asia are shifting toward audited OEM partners capable of Class 10,000 cleanroom cleaning, ultrasonic acid neutralization, and sealed vacuum-nitrogen packaging.
- End-to-end documentation: material inspection certificates (MTC) and spectral curves.
- Mitigation of geopolitical supply chain bottlenecks via direct Chinese raw source integration.
- Low MOQ rapid prototype iterations bridging R&D engineering directly to scale production.
Engineering Selection Matrix
Technical Specifications: JGS1 vs. JGS2 vs. JGS3
Selecting the ideal optical quartz formulation balances transmission band requirements against overall project budgets. Consult our physical parameter reference table before submitting technical drawings.
| Characteristic / Metric | JGS1 (Synthetic Fused Silica) | JGS2 (Fused Quartz / Flame Fused) | JGS3 (Infrared Optical Quartz) |
|---|---|---|---|
| Primary Spectral Band | Deep UV to Visible (185 nm – 2500 nm) | UV to Near IR (220 nm – 2500 nm) | Visible to Mid-IR (260 nm – 3500 nm) |
| OH- Content (Hydroxyl) | ≥ 1200 ppm (High purity, UV optimized) | 150 – 200 ppm | ≤ 5 ppm (Water-free, zero IR absorption peak) |
| Bubble Class (DIN 58927) | Class 0 (Bubble-free optical matrix) | Class 1 – 2 (Minimal minute inclusions) | Class 1 (Industrial optical level) |
| Coefficient of Thermal Expansion | 5.5 × 10⁻⁷ / °C (20°C to 320°C) | 5.5 × 10⁻⁷ / °C (20°C to 320°C) | 5.5 × 10⁻⁷ / °C (20°C to 320°C) |
| Max Continuous Temperature | 1100 °C | 1150 °C | 1150 °C |
| Primary Applications | DUV optics, excimer lasers, lithography | Viewports, UV sterilizers, furnace tubes | IR sensors, pyrometer viewports, thermal shields |
Procurement Knowledge Base
Frequently Asked Questions for Global Buyers
Essential technical, operational, and commercial insights to streamline your custom quartz glass sourcing process.
Why choose Fused Quartz over Borosilicate 3.3 for high-temp environments?
Borosilicate glass softens near 820°C and has a thermal expansion coefficient around 3.3 × 10⁻⁶ / °C. In contrast, fused quartz withstands continuous operating loads at 1100°C (short excursions up to 1400°C) and features an ultra-low expansion of 5.5 × 10⁻⁷ / °C, permitting red-hot components to be plunged directly into water without thermal shock fracturing.
What engineering drawing formats are supported for custom CNC machining?
Our direct CAD-to-CAM engineering centers accept 3D geometry files in STEP (.stp), IGES (.igs), and Parasolid (.x_t) formats, paired with 2D mechanical drawings in PDF, DWG, or DXF specifying GD&T, surface roughness tolerances (Ra), chamfer notes, and critical optical inspection zones.
How does Lovri ensure low breakage rates during overseas container transport?
Quartz components are fragile and vulnerable to vibration harmonics. We employ an engineered, multi-tier packaging process: individual vacuum plastic sealing, anti-static moisture barriers, high-density custom-molded polyethylene foam suspension, and triple-wall corrugated or fumigated ISPM-15 wooden shipping crates.
What is your Minimum Order Quantity (MOQ) for prototypes?
To support high-tech university labs, industrial start-ups, and specialized aerospace engineering programs, our facility supports prototype proof-of-concept runs with an MOQ as low as 1 to 5 pieces, backed by full DFM (Design for Manufacturability) design feedback prior to tooling.