Quartz Crucible | Professional Fused Quartz Crucible Manufacturer in China
FGQuartz supplies high-purity quartz crucibles and fused quartz crucibles in semiconductor-grade, photovoltaic-grade, large-diameter, low-bubble and laboratory forms. Used in Czochralski (CZ) and Magnetic Czochralski (MCZ) silicon crystal growth, solar polysilicon and high-temperature melting. Crucibles are supplied with controlled purity, low bubble content and uniform wall thickness.
What Are Quartz Crucibles?
Quartz crucibles are high-purity bowl-shaped vessels made from fused silica, also commonly known as fused quartz crucible products. Compared with ordinary containers, quartz offers superior thermal resistance, chemical inertness and ultra-low impurity levels.
Due to its ultra-low impurity level and excellent physical properties, quartz crucibles are widely used in semiconductor Czochralski (CZ) crystal growth, photovoltaic silicon production and high-temperature melting — making them the core consumable for semiconductor quartz crucible and solar high-temperature quartz crucible applications.
Key Advantages of Our Quartz Crucibles & Fused Quartz Crucible Products
Ultra High Purity
SiO₂ ≥ 99.99%, ensuring contamination-free performance for semiconductor and solar crystal growth applications.
High Temperature Resistance
Stable operation above 1400°C for prolonged CZ crystal pulling cycles — ideal for high-temperature semiconductor and solar environments.
Low Bubble Content
Controlled bubble distribution improves crystal quality and yield, a core advantage of our premium product range.
Uniform Wall Thickness
Ensures stable melting conditions and consistent oxygen dissolution for high-quality crystal growth.
Long Service Life
Optimized structure reduces deformation and extends usage cycles in CZ process environments.
Low Contamination Risk
Minimizes metallic impurity and uncontrolled oxygen transfer to silicon ingots.
Types of Quartz Crucibles & Fused Quartz Crucible We Supply
Click any type to view detailed product page
Semiconductor-Grade Quartz Crucible
Ultra-high purity crucibles for CZ single-crystal silicon growth. Diameters 12–32 inches.
Photovoltaic-Grade Quartz Crucible
High-purity crucibles optimized for solar CZ silicon ingot production.
Large-Diameter Quartz Crucible
Large-format crucibles for high-volume semiconductor and solar production.
Low-Bubble Quartz Crucible
Controlled bubble structure for improved crystal quality and mechanical stability.
Laboratory Quartz Crucible
Precision crucibles for high-purity material melting and analytical research.
Custom Shaped Quartz Crucible
Fully custom diameter, height and wall profile matched to your puller platform.
Cylindrical & Conical Crucible
Standard and special geometries for CZ, MCZ, FZ and VGF processes.
Continuous-Feed Compatible Crucible
Designed for multi-pull and continuous recharge CZ configurations.
MCZ Compatible Quartz Crucible
Optimized for Magnetic Czochralski processes requiring enhanced purity control.
Key Specifications
| Parameter | Value / Range |
|---|---|
| Material | High-purity fused quartz |
| SiO₂ Purity | ≥ 99.99% |
| Size Range | 12″ – 36″ (Custom available) |
| Wall Thickness | Custom (typical 8–20 mm) |
| Bubble Content | Low / Controlled distribution |
For complete material properties (mechanical, optical, electrical, chemical purity), see our Technical Specifications page.
Core Applications of Our Quartz Crucibles
Semiconductor CZ Crystal Growth
Primary containment vessel for monocrystalline silicon ingot production in semiconductor manufacturing.
Photovoltaic Silicon Production
High-purity crucibles for monocrystalline solar silicon used in PERC, TOPCon and HJT cells.
High-Temperature Melting
Contamination-free melting of high-purity metals, salts and oxide compounds.
Laboratory Research
High-purity melting vessels for analytical chemistry and materials science experiments.
Directional Solidification
Crucibles for multicrystalline silicon ingot casting and speciality crystal growth.
Speciality Crystal Growth
Used in Bridgman, floating-zone and other advanced crystal growth systems.
Custom Quartz Crucible Fabrication Service
As an experienced quartz crucible manufacturer, we provide complete custom quartz crucible solutions according to your drawings or specific puller platforms. Our advanced arc-fusion and machining capabilities ensure high precision and consistent quality for every bespoke fused quartz crucible order.
Custom Diameter & Height
Wall Thickness Profile Engineering
Bubble Distribution Control
Inner Surface Treatment
Arc Fusion Manufacturing
Dimensional Inspection
Quality Control & Why Choose FGQuartz
Full Inspection Process
- Raw material purity verification
- Dimensional inspection for every custom order
- Bubble content and surface quality check
- Thermal and structural performance testing
Why FGQuartz
- 20+ years as a professional quartz crucible manufacturer in China
- ISO 9001 certified production facility
- Stable high-purity material supply chain
- Advanced arc-fusion for bespoke crucible orders
Delivery & Service
- Strict quality control for semiconductor, solar & industrial use
- Standard items: 7–14 days
- Custom orders: typically 3–6 weeks
- Professional export service worldwide
Frequently Asked Questions
Yes. We supply CZ crucibles for semiconductor and solar monocrystalline growth, and DS crucibles for polysilicon casting
Crucible purity directly limits impurity transfer into the molten silicon, which affects crystal quality, oxygen content and device or cell performance.
From laboratory scale to large production diameters matched to your puller, in cylindrical,conical and custom shapes.
Czochralski (CZ) and Magnetic Czochralski (MCZ) silicon single-crystal growth, solar polysilicon casting, and FZ/VGF on request.
Ready to Source Quartz Crucibles?
Whether you need standard quartz crucibles, a bespoke custom quartz crucible for your unique puller platform, high-purity semiconductor quartz crucible for CZ crystal growth, or heat-resistant laboratory quartz crucible for scientific research, FGQuartz is your trusted quartz crucible manufacturer in China.
Email: [email protected]
Business Hours: Mon – Sat 9am to 6pm