High Purity Quartz Glass Manufacturer & Custom Supplier
Since 2005 · ISO 9001 Certified · Lianyungang, Jiangsu, China
Leading manufacturer of high-purity quartz glass products including quartz tubes, quartz rods, quartz plates, quartz boats, and quartz crucibles. 20+ years experience serving semiconductor, optical fiber, and laboratory industries worldwide.
99.99%
SiO2 Purity
Ultra-High Grade
1680°C
Softening Point
Extreme Temperature
72 GPa
Young’s Modulus
Superior Strength
20+
Years Experience
Industry Leader
Leading High Purity Quartz Glass Manufacturer in China Since 2005
Established in 2005 in Lianyungang, Jiangsu Province, FGQuartz has emerged as a leading manufacturer of ultra-pure quartz glass products in China. With over two decades of expertise, we specialize in producing high-precision quartz components that meet the stringent requirements of semiconductor fabrication, optical fiber manufacturing, and advanced scientific research.
Our state-of-the-art manufacturing facility spans over 15,000 square meters and is equipped with advanced fusion, forming, and precision machining equipment. We maintain ISO 9001:2015 certification and adhere to international quality standards throughout our production processes. Every product undergoes rigorous quality control testing to ensure it meets or exceeds customer specifications.
At FGQuartz, we understand that material purity is paramount in high-tech applications. Our quartz glass achieves 99.99% SiO2 purity with minimal metallic impurities (typically <20 ppm total), making it ideal for applications where contamination must be eliminated.
Our Products
Comprehensive Quartz Glass Solutions
From standard components to custom-engineered solutions, our extensive product line serves diverse industries with precision-manufactured quartz glass that delivers exceptional performance and reliability.
Quartz Tubes
High-precision quartz tubes available in diameters from 5mm to 500mm with wall thicknesses from 1mm to 10mm. Manufactured using advanced fusion techniques to ensure uniform wall thickness and exceptional concentricity. Ideal for semiconductor diffusion furnaces, CVD reactors, and high-temperature processing equipment.
- Diameter Range: 5mm – 500mm
- Purity: 99.99% SiO2
- Max Temperature: 1200°C continuous
- Applications: Semiconductor, CVD, Furnaces
Quartz Rods
Solid quartz rods manufactured from premium fused silica with diameters ranging from 3mm to 300mm. Precision-ground to tight tolerances with excellent straightness and surface finish. Used in optical fiber preform manufacturing, stirring rods, support structures, and custom component fabrication.
- Diameter Range: 3mm – 300mm
- Tolerance: ±0.1mm precision
- Surface Finish: Ra < 0.4μm
- Applications: Optical Fiber, Stirrers, Supports
Quartz Plates
Precision-polished quartz plates available in thicknesses from 1mm to 50mm with custom dimensions up to 1000mm × 1000mm. Optical-grade surface finish with excellent flatness and parallelism. Perfect for optical windows, substrates, viewports, and high-temperature observation applications.
- Thickness: 1mm – 50mm
- Max Size: 1000mm × 1000mm
- Flatness: λ/4 @ 632.8nm
- Applications: Optics, Windows, Substrates
Quartz Boats
Semiconductor-grade quartz boats designed for wafer processing in diffusion and oxidation furnaces. Available in standard and custom configurations to accommodate various wafer sizes (2-inch to 12-inch). Manufactured with precise slot spacing and excellent thermal uniformity for consistent wafer processing.
- Wafer Sizes: 2″ to 12″ compatible
- Slot Tolerance: ±0.1mm
- Thermal Uniformity: ±2°C
- Applications: Diffusion, Oxidation, Annealing
Quartz Crucibles
High-purity quartz crucibles for laboratory and industrial applications requiring extreme chemical resistance and thermal stability. Available in capacities from 10ml to 10 liters with various shapes (cylindrical, conical, flat-bottom). Ideal for high-temperature melting, chemical analysis, and material synthesis.
- Capacity: 10ml – 50L
- Shapes: Cylindrical, Conical, Flat-bottom
- Chemical Resistance: Excellent
- Applications: Melting, Analysis, Synthesis
Custom Components
Custom-engineered quartz solutions tailored to your specific requirements. Our experienced engineering team collaborates with clients to design and manufacture complex geometries, specialized coatings, and unique assemblies. From prototyping to production, we deliver precision-crafted components that meet exact specifications.
- Custom Geometries & Dimensions
- Specialized Coatings Available
- Prototyping to Production
- Applications: Specialized Industrial Needs
Technical Excellence
Superior Material Properties
Our ultra-pure quartz glass delivers exceptional performance across critical parameters, ensuring reliability in the most demanding applications.
Thermal Properties
Softening Point:1680°C
Annealing Point:1215°C
Strain Point:1120°C
Max Use Temp:1200°C
Optical Properties
UV Transmission:>90%
Refractive Index:1.4585
Wavelength Range:185-2500nm
Clarity:Excellent
Mechanical Properties
Young’s Modulus:72 GPa
Tensile Strength:50 MPa
Hardness (Mohs):5.5-6.5
Density:2.2 g/cm³
Chemical Properties
SiO₂ Purity:99.99%
OH Content:<10 ppm
Metal Impurities:<20 ppm
Acid Resistance:Excellent
Industry Applications
Powering Innovation Across Multiple Industries
Our high-purity quartz glass products are trusted by leading companies worldwide in semiconductor manufacturing, optical communications, scientific research, and advanced industrial processes.
Competitive Advantages
Why Choose FGQuartz
Two decades of expertise, cutting-edge manufacturing capabilities, and unwavering commitment to quality make us the preferred partner for high-purity quartz glass solutions worldwide.
Uncompromising Quality
ISO 9001:2015 certified manufacturing processes ensure every product meets or exceeds international quality standards. Our comprehensive quality control system includes raw material inspection, in-process monitoring, and final product testing using advanced analytical equipment including ICP-MS for impurity analysis and optical spectrometry for transmission verification.
We maintain detailed traceability records for every batch and provide certificates of analysis documenting purity, dimensions, and performance characteristics. Our quality assurance team conducts regular audits to ensure continuous improvement and compliance with customer specifications.
Advanced Manufacturing
Our state-of-the-art production facility features advanced fusion furnaces, precision CNC machining centers, and automated polishing systems. We utilize both flame fusion and electric fusion techniques to produce quartz glass with optimal properties for specific applications. Our equipment enables us to manufacture components with tight tolerances (±0.1mm) and superior surface finishes (Ra < 0.4μm).
Continuous investment in technology keeps us at the forefront of quartz glass manufacturing innovation. Our engineering team regularly develops new processes and techniques to improve product performance and expand our capabilities.
Uncompromising Quality
Our experienced technical support team works closely with customers from initial consultation through product delivery and beyond. We provide application engineering assistance, material selection guidance, and custom design services to ensure optimal solutions for your specific requirements. Fast response times and clear communication keep projects on track.
We maintain strategic inventory of common products for quick delivery (7-14 days for standard items) and offer expedited production for urgent requirements. Our global logistics network ensures reliable, timely delivery worldwide with proper packaging to prevent damage during transit.
Technical Resources
Latest Technical Insights
Explore our comprehensive library of technical articles covering quartz glass properties, manufacturing processes, and application best practices.
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At FG Quartz, we provide professional-grade hydrogen oxygen torch systems designed specifically for quartz glass welding, quartz tube sealing, and fused quartz fabrication. Our advanced oxyhydrogen torch (also known as HHO torch or Brown's [...]
Understanding Quartz Glass Purity: The Critical Role of 99.99% SiO2 in Semiconductor Manufacturing
Introduction to Quartz Glass in Semiconductor Applications Quartz glass, also known as fused quartz, is a critical material widely utilized in the semiconductor industry due to its exceptional properties and performance characteristics. Made from [...]
Optical Properties of Fused Quartz: Transmission Characteristics from UV to IR Spectrum
Introduction to Fused Quartz Fused quartz, also known as fused silica, is a high-purity form of silicon dioxide (SiO₂) that stands out due to its excellent optical properties and minimal contamination. Unlike natural quartz, which [...]