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CE-Marked ComponentsLovri Quartz Products Co., Ltd. specializes in advanced CNC machining and mechanical micro-processing of fused silica and quartz glass. Serving semiconductor fab equipment, medical and industrial lasers, optical analysis, and high-temperature furnace sectors, our engineering group converts technical drawings into tightly toleranced finished parts.
From multiple-bore laser cavities (such as Candela-style triple-bore and twin-hole flow tubes) to intricate slotted wafer carriers, precision observation windows, and threaded glass fittings, we achieve tight dimensional stability, pristine optical surface polishes, and complete thermal stress elimination.
Precision milling, wire cutting, and core drilling down to ±0.01 mm.
Fabricated with ≥ 99.99% SiO2 fused quartz for high thermal stability.
Every batch undergoes thermal annealing and polariscope stress inspection.
Rapid prototyping from 1 piece to reliable large-batch OEM production.
Explore custom multi-hole flow tubes, laser cavities, slotted wafer boats, and precision quartz flanges crafted for high-performance industrial environments.
99.98%–99.99% SiO2 fused quartz, custom diameter, flame bending, laser cutting, and precision welding for medical laser cavities.
High-precision internal bores, ground and fire-polished edges, designed for solid-state laser heads and chemical micro-reaction chambers.
Precision CNC bore alignment, uniform wall thickness, high transmission across UV/VIS/IR spectrums, and fully stress-annealed.
Special-bent C-profile triple cavity with flame-sealed and welded connectors, engineered for specialized laser flashlamps and coolant circulation.
Twin-hole, four-hole, and multi-bore capillary tubes featuring micro-hole tolerances and chemical resistance against corrosive cooling liquids.
CNC surface ground, stepped bore, frosted sealing faces, and bolt-hole configurations designed for vacuum furnaces and CVD process reactors.
Optically polished surface, precision bevelled edge, slotted channels, and custom dimensions up to 600 mm for semiconductor wafer stages.
High-temperature precision slotted carriers for 2-inch to 8-inch semiconductor wafers. Low thermal expansion and thermal shock resistant up to 1300 °C.
Review our factory processing capabilities, standard dimensional tolerances, and quality verification methods for custom fused silica components.
| Processing Method | Capability & Dimensional Range | Standard Tolerance | Key Applications |
|---|---|---|---|
| CNC Micro-Drilling & Core Boring | Hole diameters from Ø0.5 mm to Ø150 mm; depths up to 400 mm | ±0.02 mm to ±0.05 mm | Laser cavities, multi-hole cooling tubes, burner nozzles |
| Slotting & CNC Milling | Custom slot widths from 0.4 mm; step recesses and pockets | ±0.015 mm | Semiconductor wafer boats, carrier cassettes, optical brackets |
| CNC Turning & Threading | Outer diameter Ø2 mm – Ø500 mm; male & female threading | ±0.03 mm | Threaded quartz pipes, sight tube adaptors, reactor fittings |
| Surface Grinding & Lapping | Flatness down to 1–3 fringes; thickness down to 0.1 mm | ±0.01 mm | Optical windows, vacuum chamber sight glass, sensor substrates |
| Flame Welding & Bending | Hand & lathe hydrogen-oxygen torch sealing, C-shape bends | ±0.5 mm (angular ±0.5°) | Triple bore laser flow tubes, coiled spiral heaters, manifold systems |
| Thermal Annealing & Stress Test | Full cycle electric annealing at 1215 °C; polarization test per batch | Zero optical stress fringe | Preventing shatter in thermal furnaces and high-pressure chambers |
By managing everything from raw quartz purification and tube drawing to multi-axis CNC machining, annealing, and final polarization testing in our 14,271 m² Lianyungang facility, Lovri Quartz ensures reliable quality control and fast lead times.
01. Raw Material Cutting 
02. Pulverizing 
03. Rescreening 
04. Acid Pickling (99.99%) 
05. Tube Drawing 
06. Annealing Furnace 
07. End Sealing 
08. Lathe Torch Welding 
09. Vacuum Processing 
10. CNC Precision Machining 
11. Stress Inspection 
12. Cleanroom Packaging Clear answers to procurement, drawing verification, and manufacturing questions for overseas technical buyers.
Send your drawings, required tolerances, and quantities to our engineering team. Lovri Quartz Products Co., Ltd. provides fast, manufacturable, and cost-effective solutions for international procurement teams.