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
TOQUARTZ® quartz crucibles deliver exceptional thermal performance with operating temperatures exceeding 1600°C in continuous operation.
The material’s remarkably low thermal expansion coefficient (≤ 5.5 × 10⁻⁷ /°C) provides outstanding thermal shock resistance, allowing rapid temperature changes without cracking.
This thermal stability makes our crucibles ideal for high-temperature alloy processing, vacuum furnace applications, and metal powder sintering where precise temperature control and material integrity are critical.
Chemical Resistance
TOQUARTZ® quartz crucibles maintain chemical stability in highly aggressive environments, resisting corrosion from most acids, bases, molten salts, and fluorinated gases.
This outstanding chemical inertness (with the exception of hydrofluoric acid and hot phosphoric acid) prevents contamination during critical processes, ensures consistent results in laboratory testing, and extends service life in corrosive industrial environments. Our crucibles maintain their structural integrity even after repeated exposure to reactive chemicals and high-temperature processing.
Mechanical Features
With a fracture modulus exceeding 350MPa, TOQUARTZ® quartz crucibles deliver exceptional mechanical strength and durability under extreme conditions.
Their extremely low friction coefficient makes them ideal for high-flow applications, while their abrasion resistance ensures extended service life even in demanding industrial environments.
This combination of strength and wear resistance is particularly valuable in metal powder sintering operations where mechanical integrity must be maintained throughout multiple thermal cycles.
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-Assured Quartz Glass Crucibles
We are committed to delivering the highest quality quartz crucibles that meet international standards and specifications.
High-Purity Materials
TOQUARTZ® quartz crucibles are manufactured using high-purity silica with SiO₂ content up to 99.99%, ensuring minimal contamination in critical applications.
Rigorous Testing
Every quartz crucible undergoes comprehensive testing for dimensional accuracy, thermal stability, and material integrity before shipment.
Compliance Standards
TOQUARTZ® quartz crucibles comply with international standards including REACH and RoHS, ensuring environmental and safety compliance for global markets.
TOQUARTZ Quality Control
AI-Powered Raw Material Vetting
Eliminate impurity risks in high-purity quartz sand (99.98% SiO₂ baseline, max. up to 99.995% )
Real-Time Process Optimization
Maintain ±0.02mm dimensional tolerance during tube forming
Multi-Axis Performance Validation
Ensure functionality under extreme operating conditions
Traceable Compliance Documentation
Guarantee material traceability for critical applications
Customer-Centric Quality Proofing
Align validation methods with client-specific operational demands
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.
- 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
Rapid Response to Custom Requests
While many suppliers take 6-8 weeks for custom crucibles, TOQUARTZ delivers in ≤3 weeks, preventing costly project delays.
Precision Manufacturing
Our advanced production processes ensure dimensional accuracy within ±0.1mm, significantly reducing the 50% rejection rates reported by some customers with other suppliers.
Technical Drawing Support
Our engineering team assists with technical drawings, eliminating the frustration of multiple revisions reported by customers working with other manufacturers.
Emergency Production Capability
When customers face critical shortages that could result in $12,000+ in downtime costs, our expedited manufacturing service delivers crucial components in days, not weeks.
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
Our manufacturing facility is designed to accommodate both small custom runs and large production orders simultaneously, optimizing resource utilization.
Extensive Standard Inventory
We maintain a comprehensive inventory of standard quartz crucibles, allowing immediate fulfillment of small orders while dedicating production capacity to custom requirements.
Direct Factory Supply
As a manufacturer, we eliminate intermediaries, reducing costs and enabling us to serve customers with orders of any size profitably.
Streamlined Supply Chain
Our integrated supply chain management ensures efficient material sourcing, production, and delivery regardless of order size.
Customer-Centric Business Model
We prioritize building long-term relationships, recognizing that today's small order customers often become tomorrow's large volume partners.
“As a university research lab, we needed just three custom quartz crucibles for a critical experiment. Most suppliers refused our order or quoted 8-week lead times. TOQUARTZ not only accepted our small order but delivered precisely manufactured crucibles within 2 weeks, enabling our research to proceed on schedule.”
— Research Director, Materials Science Department
- 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 Customizing Process丨TOQUARTZ
Precision Custom Tubes — 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
TOQUARTZ specializes in custom quartz crucible manufacturing, working directly from your technical drawings or samples. Our engineering team provides technical support throughout the design process, ensuring your specifications are met precisely.
Fast Delivery Worldwide
With extensive inventory of standard quartz crucibles and efficient production capabilities, TOQUARTZ offers industry-leading delivery times. Standard products ship within 24 hours, while custom orders are processed with priority to meet your project timelines.
Quality Assurance
TOQUARTZ implements rigorous quality control processes throughout manufacturing, ensuring every quartz crucible meets our high standards for material purity, dimensional accuracy, and performance reliability.
No Minimum Order Quantity
Unlike many manufacturers, TOQUARTZ accepts orders of any size - from single prototype crucibles to large production runs. This flexibility makes us the ideal partner for research facilities, small-scale manufacturers, and large industrial operations alike.
Expert Technical Support
Our team of experienced engineers provides comprehensive technical support, from material selection to design optimization. We work closely with customers to ensure our quartz crucibles meet the specific requirements of their applications.
Competitive Pricing
As a direct manufacturer, TOQUARTZ offers factory-direct pricing on all quartz crucibles, eliminating intermediaries and providing excellent value without compromising on quality or performance.
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