Our high-purity double-ear quartz boats are expertly engineered for enhanced stability and precise sample handling in demanding high-temperature applications, notably elemental analysis and automated systems. Unlike single-ear designs, the binaural configuration ensures superior balance, preventing tipping and allowing for more accurate positioning and movement within furnaces. Crafted from premium fused silica (≥ 99.99% SiO2 purity), these boats offer exceptional thermal stability, extreme temperature resistance (up to 1200°C), and superior chemical inertness. Available in various sizes and fully customizable to precisely meet the demands of your sulfur analyzer, combustion furnace, or other high-purity laboratory and industrial processes.

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.
Length(mm) | Width(mm) | Height(mm) | Length(in) | Width(in) | Height(in) |
---|---|---|---|---|---|
50mm | 10mm | 5mm | 1.97" | 0.39" | 0.20” |
50mm | 15mm | 7.5mm | 1.97" | 0.59" | 0.30” |
50mm | 20mm | 10mm | 1.97" | 0.79" | 0.39” |
50mm | 25mm | 12.5mm | 1.97" | 0.98" | 0.49” |
50mm | 30mm | 15mm | 1.97" | 1.18" | 0.59” |
50mm | 40mm | 20mm | 1.97" | 1.57" | 0.79” |
50mm | 50mm | 25mm | 1.97" | 1.97" | 0.98” |
60mm | 30mm | 15mm | 2.36" | 1.18" | 0.59” |
80mm | 30mm | 15mm | 3.15" | 1.18" | 0.59” |
100mm | 10mm | 5mm | 3.94" | 0.39" | 0.20” |
100mm | 15mm | 7.5mm | 3.94" | 0.59" | 0.30” |
100mm | 20mm | 10mm | 3.94" | 0.79" | 0.39” |
100mm | 25mm | 12.5mm | 3.94" | 0.98" | 0.49” |
100mm | 30mm | 15mm | 3.94" | 1.18" | 0.59” |
100mm | 35mm | 17.5mm | 3.94" | 1.38" | 0.69” |
100mm | 40mm | 20mm | 3.94" | 1.57" | 0.79” |
100mm | 45mm | 22.5mm | 3.94" | 1.77" | 0.89” |
100mm | 50mm | 25mm | 3.94" | 1.97" | 0.98” |
100mm | 60mm | 30mm | 3.94" | 2.36" | 1.18” |
100mm | 70mm | 35mm | 3.94" | 2.76" | 1.38” |
100mm | 80mm | 40mm | 3.94" | 3.15" | 1.57” |
150mm | 40mm | 20mm | 5.91" | 1.57" | 0.79” |
150mm | 50mm | 25mm | 5.91" | 1.97" | 0.98” |
150mm | 60mm | 30mm | 5.91" | 2.36" | 1.18” |
150mm | 70mm | 35mm | 5.91" | 2.76" | 1.38” |
150mm | 80mm | 40mm | 5.91" | 3.15" | 1.57” |
200mm | 20mm | 10mm | 7.87" | 0.79" | 0.39” |
200mm | 25mm | 12.5mm | 7.87" | 0.98" | 0.49” |
200mm | 30mm | 15mm | 7.87" | 1.18" | 0.59” |
200mm | 40mm | 20mm | 7.87" | 1.57" | 0.79” |
200mm | 50mm | 25mm | 7.87" | 1.97" | 0.98” |
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 |
Exceptional High-Temperature Resistance
Capable of withstanding sustained temperatures up to 1200°C and possessing high thermal stability, these quartz boats are designed for extreme thermal cycles and high-temperature applications, ensuring durability and performance in demanding furnace conditions.
Ultra-High Purity & Chemical Inertness
Made from premium fused silica with ≥ 99.99% SiO2 purity, these boats ensure non-contamination of sensitive samples. They offer exceptional resistance to most acids and alkalis, maintaining integrity in corrosive environments and crucial for high-purity applications.
Enhanced Stability & Precise Handling
The double-ear (binaural) design provides superior balance and stability compared to single-ear alternatives, significantly reducing the risk of tilting or spillage during loading, precise positioning, and retrieval of samples within high-temperature furnaces, especially in automated systems.
Optimized for Analytical & Automated Systems
Specifically engineered to integrate seamlessly with elemental analyzers (like sulfur and carbon analyzers) and other automated high-temperature processing equipment, where the two symmetrical handles enable secure gripping and accurate linear movement for consistent and reliable results.
Application Scenario
Elemental Analysis (Sulfur/Carbon Analyzers)
Specifically designed and highly utilized as combustion boats in sulfur, carbon, and other elemental analyzers, where the double-ear design ensures precise positioning, stable sample insertion, and reliable removal within high-temperature combustion furnaces for accurate analytical results.
Automated High-Temperature Sample Handling
Ideal for integration with robotic loading and unloading systems in industrial and research settings. The two symmetrical ears provide secure grip points, allowing for highly stable, precise, and automated manipulation of samples through various thermal processing stages without tilting or spillage.
High-Precision Material Synthesis & Heat Treatment
Employed in demanding material science applications like advanced ceramics sintering, crystal growth, or thin film annealing, where maintaining exact sample orientation and preventing any movement during extreme temperature cycles is critical for material integrity and experimental reproducibility.
Quality Control and Production Line Testing
Used in industrial quality control labs for routine high-temperature testing, such as ash content determination or thermal stability analysis of various products. The robust, balanced design facilitates efficient sample throughput and consistent results in repetitive testing environments.
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 double-ear (binaural) design offers significantly enhanced stability and balance, which is crucial for precise sample handling. It prevents tilting or accidental spillage during insertion, extraction, or movement within high-temperature furnaces, especially important for delicate samples, automated systems, or when integrating with specific analytical instruments that require two points of engagement.
Yes, absolutely. These double-ear quartz boats are specifically designed and widely used as combustion boats in elemental analyzers, such as sulfur and carbon analyzers. Their balanced design and two symmetrical ears ensure secure placement and precise positioning within the analyzer’s combustion furnace, leading to accurate and reliable analytical results.
Yes, customization is a core offering. While we provide standard sizes, we can manufacture double-ear quartz boats to your exact specifications, including precise lengths, widths, heights, specific bottom designs, and any other unique features required to perfectly integrate with your specialized furnace setup or experimental protocol.
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.