Deep-UV and broad-spectrum transmission with precision optical surface polishing (60/40, 40/20 scratch-dig). Flatness < 1 lambda.
Continuous thermal resistance up to 1100°C and short-term thermal stability to 1450°C. Minimal bubble and inclusion levels for diffusion furnaces.
Double-side chemical-mechanical polished wafers for MEMS, semiconductor lithography, and microfluidics. TTV < 5 um.
Engineered for photovoltaic silicon ingot casting, noble metal smelting, and analytical laboratory ashing. Zero contamination risk.
Laser and diamond-drilled micro-hole arrays for chemical vapor deposition (CVD) gas distribution and etched semiconductor carriers.
Full flame-welded joints without adhesive contamination. Impervious to aggressive acid etching baths except hydrofluoric acid.
Complex lathe-formed geometries for laboratory cooling condensers, photochemistry reactors, and photochemical analysis apparatus.
Extreme scratch resistance, transmission across 200 nm to 5000 nm, and superior mechanical durability for extreme environment viewports.
Smooth fire-glazed edges eliminating micro-cracks under thermal gradient stresses. Ideal for boiler inspection and chemical sight gauges.
Donghai County Nivra Quartz Products Co., Ltd. controls raw quartz crystal selection and precision processing in-house. With over 100 experienced technicians, we provide complete post-machining services including CNC milling, diamond cutting, ultrasonic drilling, optical polishing, and stress annealing.
| Grade | Material Class | Transmission Range | Primary Industrial Application |
|---|---|---|---|
| JGS1 | Synthetic Fused Silica | 185 nm – 2500 nm (Deep UV) | Laser optics, UV lithography windows, analytical cuvettes |
| JGS2 | Fused Natural Quartz | 220 nm – 2500 nm (UV-Vis) | Diffusion tubes, semiconductor sight windows, sight glasses |
| JGS3 | Infrared Optical Quartz | 260 nm – 3500 nm (IR Grade) | Infrared detection optics, high-temp pyrometry viewports |
| Opaque Quartz | Arc-Fused Silica | Thermal Barrier | Heating element muffles, high-temperature crucibles |
Send your dimensional drawings or engineering specifications to Donghai County Nivra Quartz Products Co., Ltd. Our engineering team responds within 5 hours with technical feedback and quotation.