Quartz Bell Jars
Maximum Performance – Zero Compromises – Industrial Excellence
HTM Quartz introduces its next generation of high-quality opaque quartz bell jars, engineered for the most demanding industrial environments and critical high-temperature processes.
Designed for silicon carbide production, graphite processing, and specialty material melting, these bells combine robustness, stability, and dimensional precision in a premium technical solution.
Common Applications
Our quartz bells are engineered for demanding industrial and scientific environments:
- • Vacuum processes and controlled atmospheres
- • Induction and resistive heating
- • Melting and processing of advanced materials
- • Calcination and high-temperature applications
- • R&D and critical processes in the chemical and metallurgical industries
Technical Specifications
- • Materials: Transparent or opaque quartz (SiO2 99.9%), high-purity fused silica
- • Operating Temperatures: Up to 1100°C continuous, 1300°C peak
- • Thermal Resistance: Excellent resistance to thermal shock and rapid cycling
- • Available Shapes: Cylindrical, conical, hemispherical, and custom-made
- • Dimensions: Up to Ø 1000 mm and 2230 mm in length
- • Finishes: Vitrified internal surface, homogeneous walls, custom machining available
Need a custom quartz bell jar designed from your blueprints and optimized for your process?
Leveraging our leadership’s 40 years of industry expertise, we adapt every bell to your specific drawings with total design flexibility. From custom grooves to specific body machining, we ensure every finish is tailored for seamless integration into your production environment.