High Purity Quartz Plates Manufacturer
FGQuartz produces high quality fused quartz plates with exceptional purity (SiO₂ ≥ 99.99%), precision cutting and excellent surface finishing. Our quartz glass plates are widely used in semiconductor, optical systems, laboratory equipment and industrial applications.

What Are Quartz Plates?
Quartz plates are flat sheets made from high purity fused silica. They offer excellent thermal resistance, optical transparency, and chemical stability, making them ideal for precision industrial and scientific applications.
Compared with standard glass, quartz plates can withstand higher temperatures and harsher environments while maintaining structural integrity and optical clarity.
Key Advantages of Quartz Plates
Ultra High Purity
SiO₂ ≥ 99.99%, extremely low impurity content for sensitive applications.
Excellent Optical Transmission
High transparency in UV, visible and IR spectrum.
High Temperature Resistance
Stable performance up to 1100°C continuous working temperature.
Low Thermal Expansion
Excellent resistance to thermal shock and deformation.
Chemical Stability
Resistant to most acids and corrosive environments.
Precision Machinability
Supports cutting, polishing, drilling and custom shaping.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High Purity Fused Quartz |
| SiO₂ Purity | ≥ 99.99% |
| Thickness | 0.5 – 50 mm |
| Maximum Size | Up to 1000 × 1000 mm |
| Thickness Tolerance | ±0.1 mm |
| Surface Flatness | λ/4 |
| Surface Roughness | Ra < 0.4 μm |
| OH Content | < 10 ppm |
| Working Temperature | 1100°C continuous |
| Metal Impurities | < 20 ppm |
Types of Quartz Plates
Ground Quartz Plates
Precision Optical Plates
Custom Cut Plates
Applications
Semiconductor Industry
Used in wafer processing, diffusion systems and cleanroom equipment.
Industrial Applications
High temperature insulation and structural components.
Optical Systems
Optical windows, laser systems and precision instruments.
Lighting Industry
UV and high-intensity lighting system components.
Laboratory Equipment
Used in high temperature experiments and analytical devices.
Custom Engineering
Fabricated into specialized shapes and components.
Custom Quartz Plate Fabrication
We provide custom quartz plate manufacturing services based on drawings and specifications, including precision machining and finishing.
Cutting to size
Edge polishing
Surface grinding
Drilling holes
Chamfering
Fire polishing
Quality Control
- Incoming raw material inspection
- Dimensional measurement
- Surface quality inspection
- Flatness and optical testing
Why Choose FGQuartz
- Over 20 years manufacturing experience
- ISO 9001 certified production system
- Stable high purity quartz sourcing
- Advanced precision machining capability
- Global export experience