Our specialized quartz process tubes with integrated fritted discs are engineered for high-performance applications within vertical tube furnaces. Crafted from high-purity fused silica, these advanced reactors are designed for efficient gas-solid reactions, catalytic studies, and fluidization processes under extreme temperatures and corrosive conditions. The integrated fritted disc ensures uniform gas dispersion and supports particulate materials, while the enlarged central chamber promotes turbulent mixing. Custom dimensions, frit porosities, and configurations are available to precisely match your unique research and industrial processing requirements.

Remarks:
- ayment method: By wire transfer or advance payment, depending on the quantity of the order.
- Delivery time: According to the order quantity.
- Transportation method: Sea freight or air freight, depending on the customer.
| Property Content | Property Values |
|---|---|
| SiO2 | 99.99% |
| Density | 2.2×10³ kg/cm³ |
| Hardness | 5.5 - 6.5 Mohs' Scale 570 KHN 100 |
| Tensile Strength | 4.8×10⁷ Pa (N/mm2) (7000 psi) |
| Compression Strength | >1.1×10⁹ Pa (160,000 psi) |
| Coefficient of Thermal Expansion | 5.5×10⁻⁷ cm/cm·°C (20°C-320°C) |
| Thermal Conductivity | 1.4 W/m·°C |
| Specific Heat | 670 J/kg·°C |
| Softening Point | 1730°C (3146°F) |
| Annealing Point | 1210°C (2210°F) |
| Strain Point | 1120°C (2048°F) |
| Work Temperature | 1200°C (2192°F) |
| Electrical Resistivity | 7×10⁷ ohm cm (350°C) |
| Size | Customized |
| Logo | Customized Logo Accept |
Optimized for High-Temperature Gas-Solid Reactions
Designed from high-purity fused silica, these tubes can withstand extreme temperatures within vertical tube furnaces, making them ideal for high-temperature catalytic reactions, material synthesis, and other gas-solid interactions.
Efficient Gas Dispersion & Particle Support
The integrated quartz fritted disc ensures uniform gas flow through solid materials, enabling efficient gas dispersion, support of particulate beds, and controlled fluidization, crucial for achieving precise reaction conditions.
High Purity & Chemical Inertness
Crafted from ultra-high purity quartz, these process tubes are highly resistant to corrosive gases and chemicals, preventing contamination of reactants and products, and ensuring the integrity of sensitive processes over prolonged use.
Enhanced Mixing & Customizable Design
The enlarged central chamber promotes turbulent mixing and allows particles to be effectively lifted and moved, improving reaction kinetics and efficiency. Furthermore, they are fully customizable in dimensions, frit porosity, and various configurations to perfectly fit specific furnace models and experimental requirements.
Application Scenario
High-Temperature Material Synthesis & Processing
Utilized for synthesizing novel materials (e.g., powders, nanoparticles) through gas-solid reactions, thermal decomposition, or reduction processes under controlled atmospheres and elevated temperatures, ensuring purity and controlled particle interaction.
Laboratory-Scale Fluidized Bed Reactor Applications
The design with an enlarged central chamber and an integrated frit is ideal for small-scale fluidized bed experiments, allowing for efficient gas-particle contact, turbulent mixing, and controlled residence times in gas-solid reaction or drying processes.
Handle with care
Quartz glass products are made from valuable materials and must be handled gently to avoid collisions and falls.
Regular maintenance
The maintenance of quartz tubes must be performed regularly to ensure their long-term stable performance. Regularly check the connections, fixings, and mechanical vibrations of the quartz tubes to prevent abnormalities. The exterior of the quartz tubes is prone to contamination from dust and moisture, so they should be cleaned regularly.
Storage environmen
When storing quartz tubes, care should be taken to avoid exposure to mechanical vibrations, shocks, and excessively high temperatures. They should be kept in a dry, cool, and well-ventilated place, avoiding direct sunlight and high-temperature environments.
The integrated fritted disc serves multiple crucial purposes: it supports solid particulate materials, ensures uniform distribution of reaction gases flowing through the material bed, and can facilitate fluidization in certain applications. We offer various frit porosities to match your specific needs, allowing for precise control over gas flow and retention of different particle sizes. Please specify your requirements for particle size and gas flow rate.
This quartz process tube is designed to be inserted vertically into the heating zone of a tube furnace. The open ends of the tube typically extend outside the furnace hot zone, allowing for connection to gas inlet/outlet lines and other vacuum or pressure manifold systems. Sealing is usually achieved using high-temperature silicone or viton O-rings with compression fittings at the furnace ends, ensuring a gas-tight seal for inert atmosphere or vacuum operations.
Yes, absolutely. Its design makes it highly versatile. It is ideal for heterogeneous catalytic reactions where a solid catalyst bed needs uniform gas flow. Simultaneously, it’s perfectly suited for high-temperature material synthesis processes involving gas-solid reactions, such as the preparation of advanced powders, nanoparticles, or thin films, where precise control over reaction atmosphere and temperature is required.
Frequently asked questions
We specialize in the end-to-end manufacturing of high-purity quartz glass components. Our core product lines include:
Quartz Tubing & Rods: A wide range of diameters and specifications.
Quartz Plates & Discs: Precision-cut and polished for optical and industrial use.
Quartz Labware: A full suite of standard and custom glassware, including beakers, flasks, and boats.
Semiconductor-Grade Quartz: High-purity components like process tubes and carriers for semiconductor fabrication.
Custom Fabricated Components: We can produce complex parts tailored to your unique designs and specifications.
Yes. Custom fabrication is at the core of our business. With over a decade of specialized experience, we partner with companies to provide expert OEM/ODM services. Our capabilities include welding, grinding, drilling, polishing, bending, and other precision processing techniques to create components that meet your exact requirements.
Quality is paramount in our manufacturing process. We are an ISO 9001:2015 certified manufacturer, ensuring that our processes meet international quality management standards.Our products also undergo rigorous SGS testing for purity and performance. We use high-purity raw materials (up to 99.998% SiO2) to produce fused quartz and fused silica products with exceptional thermal stability, high-temperature resistance, and chemical inertness.
We've streamlined our process to be as efficient as possible:
Submit Your RFQ: Send us your technical drawings, specifications, and requirements via our website contact form or email.
Rapid Response: You can expect an initial response within minutes and detailed communication within half an hour.
Design & Proposal: We will deliver a detailed design proposal and a competitive quote within 24 hours.
Prototyping & Production: Upon approval, we move swiftly from prototyping to full-scale production to meet your deadlines.
Partnering with Aoxin Quartz offers several key advantages:
Proven Expertise: With 10+ years in the industry, we have the technical knowledge to tackle complex challenges.
One-Stop Solution: We manage the entire production process, from sourcing high-purity raw materials to fabricating and finishing complex components.
Competitive Value: Located in a major quartz production hub, we leverage an efficient supply chain and advanced manufacturing to offer exceptional quality at a competitive price point.
Dedicated Partnership: Over 90% of our clients become long-term partners. We are committed to your success through responsive service, reliable quality, and innovative solutions.






























