Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Our large, one-end-closed quartz furnace tubes with side ports are custom-engineered from high-purity fused silica, designed for critical high-temperature processing applications. Specifically adapted for compatibility with furnaces like the VBF-1200X-H8, these robust tubes serve as ideal reaction chambers, process tubes, or liners. The single-closed end and strategically placed side ports allow for precise gas inlet/outlet, vacuum sealing, or material feeding under extreme thermal conditions. We offer comprehensive customization options for dimensions, port configurations, and specific furnace compatibility to meet your exact industrial or research 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 |
Precision Engineered for High Temperatures
Crafted from high-purity fused silica, these tubes are designed to withstand extreme temperatures typically found in advanced furnaces (e.g., up to 1200°C and beyond, depending on specific quartz grade), ensuring stability and longevity in demanding thermal processes.
High Purity & Contamination-Free Processing
Made from exceptionally pure quartz, these tubes prevent contamination of sensitive materials during high-temperature reactions, diffusion, or annealing. This is paramount for applications in semiconductor, photovoltaic, and advanced materials research where purity is critical.
Optimized for Controlled Atmosphere & Gas Flow
The unique one-end-closed design combined with strategically placed side ports enables precise control over gas inlet, outlet, vacuum, or specific atmospheric conditions within the furnace. This is critical for processes requiring inert environments or specific gas mixtures.
Fully Customizable for Specific Furnace & Process Needs
Beyond standard sizes, these tubes offer extensive customization options, including specific dimensions (diameter, length), number and placement of side ports, and various joint types. This allows for seamless integration into existing furnace setups or unique experimental designs, such as the VBF-1200X-H8 Furnace and similar systems.
Application Scenario
Chemical Vapor Deposition (CVD) and Chemical Vapor Transport (CVT)
Essential as a reaction chamber within tube furnaces for processes like CVD or CVT, where precise control over reactant gas flow and deposition atmosphere is critical. The side ports allow for the introduction of precursors, carrier gases, or exhaust removal, while the closed end helps define the reaction zone.
High-Temperature Annealing and Diffusion Processes
Utilized for heat treatment of materials (e.g., semiconductors, ceramics, metals) under specific gas atmospheres (inert, reactive, or vacuum). The sealed end maintains the desired environment, and side ports facilitate gas exchange, vacuum connections, or the insertion of thermocouples/probes.
Advanced Material Synthesis and Crystal Growth
Employed in the synthesis of novel materials or the growth of single crystals at elevated temperatures. The ability to control gas flow, purity, and temperature gradients within the enclosed quartz tube makes it ideal for highly sensitive and controlled synthesis procedures.
Specialized Laboratory Reactors for Gas-Solid or Gas-Liquid Reactions
Adapted as custom reactors for specific gas-solid or gas-liquid phase reactions requiring high temperatures and precise control over reactant introduction and product collection. The side ports offer flexibility for multiple gas inlets, outlets, or even sampling ports for complex experimental setups.
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.
While the product is shown with compatibility for the VBF-1200X-H8 furnace, we specialize in custom fabrication. To ensure a perfect fit for your specific furnace model, we require detailed specifications including the outer diameter, length, wall thickness, and precise dimensions/locations of all necessary side ports and any other features. Our technical team can work with your drawings or furnace specifications to ensure bespoke compatibility.
The side ports are crucial for introducing or removing gases, connecting vacuum lines, inserting thermocouples or probes, and facilitating material feeding during high-temperature processes. Their design is fully customizable; we can vary the number of ports, their diameter, angle, length, and even incorporate different types of joints (e.g., standard taper, O-ring connections) to perfectly match your experimental setup or industrial process requirements.
Quartz is preferred due to its exceptional properties: extremely high working temperature capability, superior chemical inertness (resisting most acids and alkalis), excellent thermal shock resistance, and high purity (preventing contamination of materials). For tubes with side ports, quartz’s workability allows for precise fusion and sealing of these complex geometries while maintaining the material’s integrity and performance under demanding furnace conditions.
Laser Drilling of Quartz
Threaded Quartz Tube
External Thread on Quartz Tube
Internal Threaded Quartz Tube
Quartz Tube Slotted
Window on Quartz Tube
Angled Cut Quartz Tube
Quartz Tile
Quartz Tube with Window
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.
