ROD / BAR 
Semiconductor Translucent Fused Quartz Rod
99.99% SiO2 purity with ~90% transmittance. Tailored for semiconductor fabrication, chemical vapor exposure, and high-heat insulation.
Quartz Rod / Bar
High-purity fused silica glass rods, optical square guide bars, micro capillary rods, and precision ground quartz cylinders engineered for semiconductor and optical industries.
High-Purity Fused Quartz Rod & Bar Series
Manufactured from 99.99% pure SiO2 raw materials. Excellent thermal stability up to 1300°C, extreme chemical resistance, and high optical transmittance across UV, visible, and infrared wavelengths.
CAPILLARY 
Capillary Silica Quartz Rod for Optical Lenses
Precision-drawn micro capillary rod with zero striations and consistent refractive index. Ideal for optical focus lenses and medical sensor assemblies.
OPTICAL GUIDE 
Square Quartz Light Guide Block & Rod
Six-side lapped and polished square fused silica bar. High UV/Visible transmission for uniform beam shaping and lithography light guides.
BURNISHED 
Optical Burnished Quartz Element & Rod
Surface-burnished optical components with exceptional flatness and parallelism. Resistant to extreme chemical corrosive agents.
CNC MACHINED 
Quartz Glass Square Cylinder Column
CNC hollowed or solid square column. Precision ground dimensions for laser cavities, sensor housings, and plasma reaction chambers.
SEMICONDUCTOR 
Custom Ground & Polished Quartz Pin/Rod
Precision chamfered and lathe-turned quartz pins, support bars, and test rods designed for extreme cleanroom standards.
MICRO-ROD 
Micro Capillary Quartz Rod (1mm – 10mm)
Available in standard ODs (1mm, 2mm, 4mm, 6mm, 8mm, 10mm). Outstanding thermal shock resistance and high mechanical rigidity.
LAB & OPTICS 
Transparent Quartz Stirring & Light Rod
Flame-polished fused silica stirring rod for aggressive acidic media, calcination furnaces, and UV light transmission setups.
PROFILE SHAPED 
Square, Round & Semi-Circular Quartz Bar
Comprehensive range of geometric profiles. Custom extruded, fire-polished, or precision CNC finished according to customer specifications.
End-to-End In-House Manufacturing Capabilities
At Lovri Quartz Products Co., Ltd., we control the entire lifecycle of quartz processing—from raw material sizing and acid purification to high-temperature drawing, CNC profiling, and stress-relief annealing.
Raw Materials Cutting 
Raw Materials Pulverizer 
Acid Pickling (99.99%) 
Precision Rod Drawing 
Thermal Annealing 
CNC Machining & Lapping 
Polarization Stress Testing 
Cleanroom Packaging | Material Purity (SiO₂) | ≥ 99.99% high-purity synthetic / electrical fused silica |
|---|---|
| Continuous Operating Temp | 1100 °C (Short-term up to 1300 °C) |
| Coefficient of Thermal Expansion | 5.5 × 10⁻⁷ /°C (20 °C – 300 °C) |
| Softening Point | ≈ 1730 °C |
| Optical Transmittance | > 90% (Custom JGS1 grade achieves deep UV transmission down to 185 nm) |
| Diameter Tolerances | Standard ±0.05 mm to ±0.2 mm; precision CNC ground up to ±0.01 mm |
| Available Profiles | Round, Square, Rectangular, Hexagonal, Semi-circular, Capillary, L-shape |
| Certifications & Inspection | SGS Onsite-Verified, RoHS Compliant, Polarization Stress Tested |