Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Our quartz U-tubes and U-shaped drying tubes are meticulously crafted from high-purity fused silica (SiO2 ≥ 99.99%), delivering exceptional performance for demanding laboratory and industrial gas handling applications. These versatile tubes offer outstanding heat resistance up to 1200°C and superior inertness to acids and alkalis, ensuring no contamination and long service life. Available in various standard configurations, including those with branch pipes, and fully customizable to meet specific dimensions and design requirements for gas drying, absorption, and high-temperature flow systems.
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 |
Extreme Heat and Thermal Shock Resistance
Manufactured from high-purity quartz, these U-tubes can safely withstand continuous temperatures up to 1200°C and possess exceptional resistance to thermal shock, making them ideal for high-temperature gas processing, reactions, and drying applications.
Superior Chemical Inertness & High Purity
With a silicon dioxide purity of ≥99.99%, these tubes are highly resistant to most acids and alkalis, ensuring no leaching of contaminants into sensitive gas streams or chemical samples, which is crucial for high-purity scientific and industrial processes.
Robust Construction with Smooth Flow Paths
Designed with solid welds, smooth rounded corners, and well-finished tube mouths, these U-tubes minimize turbulence and potential for material accumulation, ensuring efficient gas flow and easy cleaning while providing long-lasting durability.
Flexible Design & Full Customization
Available in various shapes, including options with side branch pipes, and offering full custom specifications. This versatility allows them to be tailored precisely to unique laboratory setups, specialized absorption systems, or specific industrial gas handling requirements.
Application Scenario
Gas Drying and Purification Systems
Utilized in laboratories and industrial processes to effectively dry gases by passing them through solid desiccants (e.g., anhydrous calcium chloride, silica gel) or to remove impurities from gas streams, especially when dealing with hot or corrosive gases due to quartz’s high heat and chemical resistance.
Gas Absorption and Trapping
Employed for the absorption of specific gases into solid or liquid reagents, or for trapping volatile components in gas analysis. Their U-shape maximizes contact surface, and the inert quartz material ensures no reaction with sensitive absorbed substances or corrosive gases.
Small-Scale High-Temperature Gas Reactions
Used as miniature reactors within furnaces or heating blocks for gas-phase reactions, catalytic studies, or material synthesis under controlled atmospheres at temperatures up to 1200°C, benefiting from quartz’s thermal stability and purity.
Flow Measurement and Pressure Differential Apparatus
In some specialized setups, quartz U-tubes can serve as components in manometers or flow meters, especially when the gas involved is corrosive or requires high purity, ensuring accurate and contamination-free measurements.
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.
Quartz U-tubes are highly versatile and can be safely used with a wide range of common solid desiccants such as silica gel, calcium chloride (anhydrous), molecular sieves, and phosphorus pentoxide. Their high chemical resistance also makes them suitable for liquid absorbents or trapping agents, even highly corrosive ones, ensuring long-term compatibility and integrity of the tube.
While quartz has excellent thermal shock resistance and can withstand direct flame heating for localized applications, it is generally recommended to use a furnace or heating mantle for uniform heating, especially for prolonged periods or when maintaining a precise temperature across the entire tube is critical. This helps prevent localized stress and ensures optimal performance and longevity.
Yes, when connecting quartz U-tubes, ensure that compatible materials and connection methods are used. Standard laboratory rubber or silicone tubing can be used for connections, but for high-temperature or corrosive gas applications, specialized high-temperature tubing or ground glass joints (if the U-tube is customized with them) would be more appropriate. Always ensure a secure and leak-tight seal, using clamps or wire ties where necessary, particularly for vacuum or pressure applications.
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.
