Our high-purity quartz tubes for rotary tube furnaces are specifically designed to optimize powder processing in demanding high-temperature environments. Crafted from fused silica, these tubes feature four symmetrically placed internal blades that ensure superior powder mixing and prevent caking, leading to more uniform reactions and material properties. Available for various furnace zone configurations (e.g., two-zone, three-zone) and customizable to different diameters (e.g., 2″, 4″, 5″), these rotary reactor tubes provide exceptional temperature resistance and chemical inertness, making them ideal for battery materials, ceramics, and advanced powder metallurgy.

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 Powder Mixing & Homogeneity
Featuring uniquely designed internal symmetrical blades, these quartz tubes ensure superior and uniform powder mixing during rotary furnace operations, preventing material agglomeration and leading to more consistent reaction kinetics and product properties.
Exceptional High-Temperature & Chemical Resistance
Crafted from high-purity fused silica, these tubes withstand extreme operating temperatures typical of rotary furnaces and exhibit excellent inertness to a wide range of corrosive gases and powders, ensuring long-term durability and no contamination.
Tailored for Rotary Furnace Systems
Designed specifically for integration with multi-zone rotary tube furnaces, these tubes come in various diameters (e.g., 2″, 4″, 5″) and can be customized in length and configuration to perfectly match different furnace models and heating zone requirements.
High Purity for Sensitive Materials Processing
The inherent ultra-high purity of quartz (SiO2 ≥ 99.99%) makes these tubes ideal for processing sensitive materials in industries like battery manufacturing, ceramics, and catalysis, where maintaining material purity and avoiding foreign contamination is paramount.
Application Scenario
Continuous Solid-State Reactions & Decomposition
Ideal for continuous processes involving solid-state reactions, thermal decomposition, or drying of fine powders, where a uniform temperature profile and constant agitation are necessary to achieve desired reaction completeness and product homogeneity.
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 four symmetrically placed internal blades are designed to continuously lift and tumble the powder as the tube rotates. This action prevents the powder from simply sliding along the bottom, ensuring thorough and uniform mixing, preventing agglomeration, and leading to more homogeneous reactions and material properties compared to tubes without such internal structures.
Yes, absolutely. We offer extensive customization for our quartz tubes for rotary furnaces. We can tailor the length, outer diameter, internal blade design, and end connections to precisely match your specific rotary furnace model, heating zones (e.g., two-zone, three-zone), and unique processing needs, such as different powder types or flow characteristics.
The uniform powder mixing capability of these tubes is most critical in applications where homogeneity directly impacts product performance or reaction efficiency. This includes the synthesis and calcination of battery materials (e.g., cathode and anode powders), preparation and regeneration of heterogeneous catalysts, advanced ceramic powder sintering, and continuous solid-state reactions requiring precise temperature and atmosphere control with consistent material agitation.
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.





















