Lovri Quartz Products Co., Ltd. specializes in precision fabrication of irregular, complex, and high-purity fused silica glass products. From prototype development to high-volume production, we support global semiconductor, photovoltaic, laboratory, and optical equipment manufacturers.
Every special-shaped component is constructed from premium natural or synthetic quartz glass (>99.99% SiO₂ purity), ensuring exceptional thermal-shock resistance, zero thermal expansion stress, high operating temperatures up to 1300°C, and optical transparency across UV, visible, and IR spectrums.
Request a Custom QuoteOur 14,271 m² production facility in Lianyungang, China operates under rigorous internal quality standards verified by SGS Group with full material traceability.
Equipped with multi-axis CNC glass centers, ultrasonic drilling, laser cutting, diamond grinding, and optical-grade flame-fire polishing.
Every piece undergoes programmatic thermal annealing followed by comprehensive polariscope stress testing to eliminate micro-cracking and thermal vulnerabilities.
Customized solutions designed for demanding industrial, semiconductor furnace, CVD reaction, and university laboratory environments.
Manufactured directly from our factory with optical flame polishing, precision bending, and seamless sealing. Excellent thermal shock resistance for specialty lighting, UV disinfection, and fluid monitoring.
Custom glass-blown and CNC ground quartz instruments, reaction cells, flasks, and distillation columns. Highly corrosion resistant against extreme acids and thermal cycling in college laboratories.
High-temperature vacuum sealing flanges with precision drilled bolt holes, ground sealing faces, and crack-free welded pipe connections. Ideal for diffusion furnaces and vacuum systems.
Features tight-tolerance laser hole drilling, micro-slotted bar geometry, circular bending, and welding. Fully RoHS certified for high-tech laser systems and semiconductor carrier fixtures.
Engineered opaque and transparent fused quartz rings, washers, and thermal shielding plates. CNC turned, milled, cut, and welded to withstand prolonged 1100°C furnace exposure.
Manufactured with high-purity transparent silica (SiO₂ > 99.99%) for semiconductor CVD reaction chambers. Precision ground dual flanges provide hermetic sealing under high vacuum conditions.
By mastering every phase in-house—from raw silica refining to high-end CNC machining—we guarantee chemical purity and mechanical accuracy.
Precision sizing and segregation of premium raw natural quartz rocks.
High-grade mechanical crushing into fine, contamination-free silica grains.
Accurate mesh screening ensures consistent grain distribution for melting.
Decontaminating metal ions and oxides to reach 99.99% pure silica composition.
Thermal fusion drawing ensuring concentric walls and tight OD tolerances.
Computerized thermal ramp down eliminates internal structural tension.
Custom cutting, hole drilling, step milling, slotting, and surface grinding.
Shock-absorbing foam and reinforced wooden casing for secure worldwide shipping.
State-of-the-art quartz processing machinery and professional quality inspection tools deployed across our workshop floors.
CNC Machining Center 
Drawing Machine 
Annealing Furnace 
Sealing Lathe 
Vacuum System 
Stress Polarimeter Send your drawings (CAD, DWG, DXF, PDF, or STEP) along with application requirements. Our engineering team at Lovri Quartz Products Co., Ltd. provides fast technical feedback and competitive volume pricing.