TOQUARTZ® Quartz Crucibles
For Laboratory & Industrial Applications
TOQUARTZ® comprehensive range includes transparent quartz crucibles, opaque quartz crucibles, and custom-designed quartz glassware to meet specific requirements.
- Thermal Stability Up to 1600°C+
- Custom Manufacturing
- No Minimum Order
TOQUARTZ® Quartz Glass Crucible Product Range
TOQUARTZ offers a comprehensive range of high-quality quartz crucibles to meet diverse industrial and laboratory requirements, from standard sizes to fully customized solutions.
What Is a Fused Quartz Crucible?
A quartz crucible is a high-temperature vessel made from high-purity fused silica (SiO₂) with a content of at least 99.98%.
These specialized containers are designed to withstand extreme temperatures exceeding 1600°C while maintaining exceptional chemical stability and thermal shock resistance.
Quartz crucibles serve as essential tools in various industrial and laboratory applications where materials need to be heated, melted, or processed under controlled conditions.
Key Properties of Fused Quartz Crucibles
TOQUARTZ® quartz crucibles feature exceptional thermal stability, chemical resistance, and customizable dimensions to meet the demanding requirements of industrial and laboratory applications.
Thermal Properties
Engineered for extreme thermal environments, TOQUARTZ® quartz crucibles are designed to deliver uncompromising performance and structural integrity.
- Operating temperatures exceeding 1600°C are sustained continuously.
- Thermal expansion is controlled at ≤ 5.5 × 10⁻⁷ /°C.
- Rapid temperature cycling is withstood without cracking.
- High-temperature alloy and vacuum furnace processing is supported.
- Metal powder sintering is enabled with precise control.
Chemical Resistance
Formulated for chemically demanding applications, TOQUARTZ® quartz crucibles are engineered to resist aggressive media and prevent contamination.
- Corrosion from acids, bases, and salts is resisted.
- Resistance is maintained except against HF and hot H₃PO₄.
- Contamination during critical processes is effectively prevented.
- Structural integrity is retained after repeated chemical exposure.
- Extended service life in corrosive environments is ensured.
Mechanical Features
Built for structural demanding applications, TOQUARTZ® quartz crucibles are engineered to deliver exceptional mechanical strength and wear resistance.
- Fracture modulus exceeding 350 MPa is achieved.
- Durability under extreme industrial conditions is ensured.
- Low friction is maintained for high-flow applications.
- Abrasion resistance across repeated thermal cycles is sustained.
- Mechanical integrity in powder sintering is preserved.
TOQUARTZ® Fused Quartz SiO2 Crucible Applications
TOQUARTZ® quartz crucibles serve as essential components in a wide range of industrial and laboratory processes, providing reliable performance in extreme thermal and chemical environments.
Quartz Glass Crucibles in High-Temperature Vacuum Furnace Equipment
TOQUARTZ® high-performance quartz crucibles are engineered specifically for vacuum furnace applications, offering exceptional thermal stability and dimensional precision for high-temperature material processing:
- Processing of high-temperature alloys and specialty metals requiring controlled atmospheres
- Heat treatment of advanced ceramic materials in vacuum or inert gas environments
- Precision melting of non-ferrous metals and alloys with minimal contamination
- Component manufacturing for aerospace, automotive, and energy industries
- Research and development of new high-performance materials under controlled conditions
Fused Quartz Crucibles for Metal Powder Sintering Applications
TOQUARTZ® specialized quartz crucibles for metal powder sintering provide exceptional performance in corrosive environments and protective atmospheres critical for powder metallurgy processes:
- Rare earth metal sintering processes requiring protection from oxidation
- Production of precision metal components through powder metallurgy techniques
- Sintering of specialty metal powders in hydrogen, nitrogen, or argon atmospheres
- Processing of metal matrix composites requiring controlled atmosphere conditions
- Laboratory-scale development of new sintered metal formulations and processes
Fused Quartz Glass Crucibles for Laboratory Research & Testing
TOQUARTZ® laboratory-grade quartz crucibles provide the precision, purity, and reliability essential for scientific research, material analysis, and educational applications:
- Chemical analysis and sample preparation in analytical laboratories
- High-temperature reactions and material synthesis in research facilities
- Controlled environment experiments requiring chemical inertness
- Educational demonstrations and student laboratory exercises
- Small-scale material development and testing before industrial implementation
Quartz Crucibles for Photovoltaic & Semiconductor Industry
TOQUARTZ® industrial-grade quartz crucibles are specifically designed for the demanding requirements of photovoltaic and semiconductor manufacturing:
- Silicon ingot growth for solar wafer production
- Directional solidification of multi-crystalline silicon
- Melting and casting of semiconductor materials
- High-temperature processing of electronic materials
- Specialized thermal treatments in controlled atmospheres
TOQUARTZ® Quality Controlled Quartz Glass Crucibles
Engineered to international standards, TOQUARTZ® quartz crucibles are produced with verified purity, precision, and compliance.
High-Purity Materials
High-purity silica with SiO₂ content up to 99.99% is utilized to minimize contamination.
Rigorous Testing
Dimensional accuracy, thermal stability, and integrity are verified before shipment.
Compliance Standards
Compliance with REACH and RoHS is maintained for global markets.
Raw Material Vetting
High-purity silica is sourced and screened.
Precision Forming Control
Dimensional tolerance is maintained during shaping.
Firing & Validation
Thermal stability is confirmed through kiln processing.
Batch Quality Records
Material traceability is recorded for each batch.
Custom Order Proofing
Specifications are verified per order.
TOQUARTZ® Customized Quartz Crucible Capabilities
TOQUARTZ® specializes in custom quartz crucible solutions tailored to your specific requirements, with rapid turnaround times and expert technical support.
Rapid Response to Custom Requests
Custom crucibles are delivered within 3 weeks, not 6–8.
Precision Manufacturing
Dimensional accuracy is held within ±0.1mm per unit.
Technical Drawing Support
Technical drawings are provided to eliminate revision delays.
- Initial consultation to understand your specific requirements
- Technical drawing review or creation with our engineering team
- Material selection and manufacturing process determination
- Prototype production and approval (if required)
- Full production with comprehensive quality control
No Minimum Order for Premium Quartz Crucibles
TOQUARTZ® offers high-quality quartz crucibles with no minimum order quantity, making premium products accessible to businesses of all sizes.
Efficient Production Scheduling
Small and large production runs are handled simultaneously.
Extensive Standard Inventory
Standard crucibles are stocked for immediate order fulfillment.
Direct Factory Supply
Intermediaries are eliminated to reduce cost at every scale.
Streamlined Supply Chain
Sourcing, production, and delivery are managed through integrated systems.
Customer-Centric Business Model
Long-term partnerships are built from orders of any size.
“”As a university research lab, we required only three custom quartz crucibles for a time-sensitive experiment. Most suppliers declined small-quantity orders or quoted lead times of six to eight weeks. TOQUARTZ accepted the order without minimum quantity requirements and delivered precision-manufactured crucibles within two weeks — allowing our research timeline to be maintained without compromise.”
— Research Director, Advanced Materials Laboratory
- Research laboratories requiring small quantities of specialized crucibles
- Prototype development and testing applications
- Small-scale production facilities with limited storage capacity
- Educational institutions with specific project requirements
Fused Quartz Glassware Manufaturing Processing丨TOQUARTZ
- Precision Customization — No MOQ + Rapid Prototyping
- Cross-Industry Solutions — Optics R&D + Chemical Labs
- Innovative Manufacturing — High Accuracy + Bulk Accessibility
Why Choose TOQUARTZ® for Quartz Crucibles
Partner with TOQUARTZ for reliable, high-quality quartz crucibles backed by exceptional service and technical expertise.
Custom Design Solutions
Crucibles are manufactured directly from drawings or samples.
Fast Delivery Worldwide
Standard orders are shipped within 24 hours of confirmation.
Quality Assurance
Every crucible is verified for purity, accuracy, and reliability.
No Minimum Order Quantity
Orders of any size are accepted, from prototype to production.
Expert Technical Support
Full technical guidance is provided from selection to optimization.
Competitive Pricing
Factory-direct pricing is offered with no intermediary costs.
FAQs
Q: What is the maximum temperature TOQUARTZ® quartz crucibles can withstand?
A: TOQUARTZ® quartz crucibles can withstand temperatures up to 1600°C in continuous operation, with short-term exposure capabilities up to 1800°C depending on the specific application and environment. Our high-temperature crucibles maintain excellent dimensional stability and mechanical integrity even at these extreme temperatures.
Q: What is the difference between transparent and opaque quartz crucibles?
A: Transparent quartz crucibles are made from high-purity clear fused silica, offering excellent light transmission and visibility of contents during processing. Opaque quartz crucibles contain micro-bubbles that scatter light, providing better thermal insulation and reduced radiation transmission. Opaque crucibles are typically preferred for solar silicon crystal growth, while transparent crucibles are often used in laboratory and optical applications.
Q: Can TOQUARTZ provide custom-sized quartz crucibles?
A: Yes, TOQUARTZ specializes in custom quartz crucible manufacturing. We can produce crucibles according to your specific dimensions, wall thickness requirements, and special features such as pouring spouts or custom shapes. Our engineering team works directly from your technical drawings or samples to ensure precise replication of your specifications.
Q: Are TOQUARTZ® quartz crucibles resistant to chemical corrosion?
A: Yes, TOQUARTZ® quartz crucibles offer excellent chemical resistance to most acids, bases, and molten salts. They remain chemically inert except when exposed to hydrofluoric acid and phosphoric acid. This exceptional chemical stability makes our crucibles ideal for applications involving aggressive chemical environments and high-temperature reactions.
Q: What is the thermal expansion coefficient of TOQUARTZ® quartz crucibles?
A: TOQUARTZ® quartz crucibles feature a very low thermal expansion coefficient of approximately 5.5 × 10⁻⁷ /°C. This exceptionally low expansion rate provides excellent thermal shock resistance, allowing our crucibles to withstand rapid temperature changes without cracking or deformation.
Q: Are TOQUARTZ® quartz crucibles suitable for semiconductor applications?
A: TOQUARTZ® quartz crucibles are suitable for many semiconductor-related applications, particularly in material processing, research, and development. Our high-purity crucibles (99.995% SiO₂) provide the cleanliness and performance needed for many semiconductor materials processing applications. For ultra-high-purity semiconductor production requiring specialized certifications, please consult with our technical team to determine suitability.
Q: Can TOQUARTZ® quartz crucibles be used for metal melting applications?
A: TOQUARTZ® quartz crucibles are suitable for melting certain metals and alloys, particularly those with melting points below the working temperature of quartz (approximately 1600°C). They are commonly used for precious metals, aluminum, and some specialty alloys. However, compatibility depends on the specific metal and processing conditions. Our technical team can provide guidance on suitability for your specific metal melting application.
Q: What is the purity level of TOQUARTZ® quartz crucibles?
A: TOQUARTZ® quartz crucibles are manufactured using high-purity silica with SiO₂ content up to 99.995%. This exceptional purity level ensures minimal contamination during high-temperature processes, making our crucibles suitable for applications requiring high material integrity and consistent results.
Q: How to get residue out of quartz crucible?
A: To remove residue from a fused quartz crucible, first allow the crucible to cool completely. Then, gently brush off loose particles using a soft ceramic brush. For stubborn residues, soak the fused quartz crucible in a diluted acid solution such as nitric acid (HNO₃) or hydrochloric acid (HCl), depending on the material. Rinse thoroughly with deionized water and dry at low temperature. Avoid using abrasive tools or sudden thermal shocks, as they may damage the crucible surface or reduce its lifespan.
Contact Us for Premium Quartz Crucibles Today
Ready to discuss your quartz crucible requirements? Our team is standing by to provide expert assistance and customized solutions.
TOQUARTZ is your trusted partner for all quartz crucible needs. Our commitment to quality, innovation, and customer satisfaction has made us a preferred quartz crucible supplier for research institutions, manufacturing facilities, and industrial operations across Germany, Japan, the United States, South Korea, Canada, Poland, and Mexico.
Contact us today to discuss your specific quartz crucible requirements and experience the TOQUARTZ difference.
- Direct factory pricing with no intermediaries
- Expert engineering support for custom designs
- No minimum order quantity requirements
- Fast delivery with 24-hour shipping for stock items
- Comprehensive supply chain management services