High-Purity Fused Quartz Products for Advanced Industries
FGQuartz is a trusted manufacturer of high-purity fused Quartz Glass components.
Our precision-engineered Quartz Glass solutions deliver superior performance in demanding industries such as semiconductor manufacturing, solar energy, fiber optics, and chemical processing.
With outstanding thermal stability, chemical resistance, and optical clarity, our products ensure consistent reliability, minimize contamination, and enhance process efficiency.
Discover our extensive range of standard Quartz Glass products or collaborate with FGQuartz to develop custom-designed components tailored precisely to your application requirements.
- Size Range: Outer diameter from 1 mm to 400 mm, length up to 2000 mm
- Types: Clear, opaque, or frosted tubes
- Key Features: Ultra-high purity (≥ 99.99 % SiO₂) with exceptional thermal stability and low expansion; ideal for diffusion furnaces, CVD systems, UV lamps, and fiber-optic sleeves
- Customization: Wall thickness, length, end polishing, frosted surfaces, closed ends, and precision slots
- Diameter Range: 2 mm – 200 mm
- Length: Up to 1500 mm
- Types: Clear, opaque, solid, or hollow
- Key Features: Excellent optical clarity, high strength, and minimal bubble content for precision optical or structural applications
- Customization: Optical-grade polishing, cutting, drilling, or tapered machining
- Thickness Range: 0.5 mm – 50 mm
- Size: Up to 1200 × 1200 mm
- Surface Finishes: Single- or double-sided polish, beveled edges, or coated surfaces
- Key Features: High optical transmission, outstanding thermal stability, and chemical resistance
- Applications: Optical windows, substrates, inspection covers, and reaction-chamber partitions
- Capacity: For wafers 2 to 12 inches
- Types: Single-slot, dual-slot, or multi-slot designs
- Material: High-purity clear fused quartz
- Key Features: Precise dimensional tolerances and excellent thermal-shock resistance
- Customization: Number of slots, spacing, angle, and structure (flat-bottom or round-bottom)
- Length Range: 100 mm – 2000 mm
- Wall Thickness: 3 mm – 25 mm
- Types: Single, dual, overflow, or recirculating tanks
- Applications: Wet etching, cleaning, and chemical processing
- Customization: Overflow ports, heaters, brackets, fittings, scale marks, and drain placement
Custom Quartz Glass
- Types: Reaction chambers, heat exchangers, Quartz Glass tube assemblies, viewports, and support structures
- Fabrication Capabilities: Precision hot-joining, sealing, grinding, and polishing per customer drawings
- Key Features: Seamless, bubble-free welds compatible with CVD, PECVD, diffusion, and optical systems
- Industries Served: Semiconductor, optoelectronics, chemical processing, and laboratory equipment
Core Advantages of FGQuartz Quartz Glass Tubes
Exceptional Thermal Shock Resistance
The low thermal expansion coefficient (~0.55×10−6/K) keeps the Quartz Glass tube structurally stable during rapid heating and cooling cycles.
This minimizes cracking and stress mismatch, ensuring long-term reliability in diffusion furnaces, CVD systems, and other high-temperature processes.
Extreme Chemical Purity
With SiO₂ purity exceeding 99.99% and ultra-low metallic or alkali residues, FGQuartz Quartz Glass tubes ensure contamination-free environments for semiconductor and optical applications.
The high chemical inertness guarantees process consistency and stable material performance over time.
Broad Spectral Transmission
FGQuartz Quartz Glass tubes provide excellent light transmission from deep UV to near IR, supporting optical and photonic performance for sterilization,
spectroscopy, imaging, and laser coupling. Available in clear, opaque, or frosted finishes to meet different optical needs.
Tailored Solutions for Your Unique Quartz Glass Requirements
Whether you need non-standard sizes, complex port geometries, or optical-grade polishing, our engineering team turns your drawings into production-ready Quartz Glass components.
Precision Cutting & Drilling
Tight-tolerance CNC cutting, through-holes, countersinks, and complex slotting for assembly-ready Quartz Glass parts.
Flange Welding & Forming
Hot-forming and clean welding for Quartz Glass flanges, joints, and adapters with bubble-free seams.
Fire Polishing
Smooth, chip-free edges and optical clarity on Quartz Glass tube ends, plates, and viewports.
Threaded Machining
Internal and external threads for Quartz Glass fittings, closures, and vacuum-compatible assemblies.
Sandblasting & Frosting
Controlled surface roughness on Quartz Glass components for diffusion optics, glare reduction, and fluid visualization.
Frequently Asked Questions
What temperature limits can high-purity Quartz Glass tubes withstand in continuous operation?
FGQuartz Quartz Glass tubes can operate continuously up to approximately 1050–1100 °C, with a softening point around 1700 °C.
Their low thermal expansion coefficient (~0.55 × 10⁻⁶ /K) ensures excellent thermal shock resistance,
making them ideal for CVD, diffusion, and other high-temperature semiconductor processes.
What is the maximum diameter and length you can produce?
We can manufacture Quartz Glass tubes with outer diameters up to 400 mm and lengths up to 2000 mm.
Custom dimensions, wall thickness, and end configurations (open, closed, slotted, or polished) are available upon request.
How can Quartz Glass tubes be cleaned and maintained to extend service life?
Use non-abrasive cleaners such as high-purity alcohol or deionized water, and avoid strong alkalis or mechanical scrubbing.
Dry at moderate temperatures (< 120 °C) to prevent thermal shock. Regular inspection and gentle handling
significantly extend lifespan in thermal and chemical environments.