Quartz Furnace Tube
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Product Description
Material & Quality
Made from 99.99% high-purity fused silica, our large-diameter quartz tube is free of impurities, ensuring minimal thermal expansion and maximum resistance to thermal shock (can withstand rapid temperature changes from -20℃ to 1200℃). It is non-toxic, non-porous, and resistant to most acids (except hydrofluoric acid) and alkaline solutions, making it suitable for corrosive chemical processing.
Core Advantages- Superior thermal stability: Operates continuously at 1100℃, short-term use up to 1450℃
- Excellent mechanical strength: High compressive strength and impact resistance, cracking during installation and use
- Customization support: Cut-to-length, flanged ends, and drilled holes available per customer drawings
- Long service life: Resists aging and oxidation even under prolonged high-temperature exposure
-
Semiconductor Industry
They are widely used in diffusion furnaces, oxidation furnaces and ion implantation equipment for wafer processing. The high purity and corrosion resistance of quartz tubes can ensure no pollution to semiconductor materials during high-temperature processes. -
Solar Energy Sector
Applied to the production line of photovoltaic cells and silicon wafers, they serve as the core components of high-temperature sintering and coating equipment, helping to improve the conversion efficiency of solar cells. -
High-Temperature Heat Treatment & Metallurgy
Used as furnace linings and heating chambers in annealing furnaces, quenching furnaces and sintering furnaces, they can withstand continuous high-temperature operation up to 1100℃ and resist thermal shock. -
Laboratory & Scientific Research
Employed in high-temperature chemical reactors, vacuum tubes and chemical vapor deposition (CVD) systems, suitable for harsh experimental environments such as strong acid corrosion and high-temperature pyrolysis. -
Optical Fiber & Optoelectronics Industry
Serve as protective sleeves and drawing molds in optical fiber preform production, ensuring the purity and uniformity of optical fiber materials during the high-temperature drawing process. -
Environmental Protection & Waste Treatment
Used in high-temperature waste gas incinerators and hazardous waste treatment equipment, taking advantage of their high-temperature resistance and chemical stability to decompose harmful substances.
Product Specifications
| Outer Diameter (mm) | Inner Diameter (mm) | Height (mm) | Outer Diameter Tolerance | Inner Diameter Tolerance | Height Tolerance |
|---|---|---|---|---|---|
| 20 | 10 | 5～20 | ±0.2 | ±0.2 | ±0.2 |
| 30 | 15/20 | 5～30 | ±0.2 | ±0.2 | ±0.2 |
| 40 | 20/30 | 5～30 | ±0.2 | ±0.2 | ±0.2 |
| 50 | 30/40 | 5～50 | ±0.3 | ±0.3 | ±0.3 |
| 60 | 40/50 | 5～50 | ±0.3 | ±0.3 | ±0.3 |
| 80 | 50/60/70 | 10～60 | ±0.3 | ±0.3 | ±0.3 |
| 100 | 60/80/90 | 10～80 | ±0.5 | ±0.5 | ±0.5 |
| 120 | 80/100 | 10～80 | ±0.5 | ±0.5 | ±0.5 |
| 150 | 100/120 | 10～100 | ±0.8 | ±0.8 | ±0.5 |
| 200 | 150/180 | 10～120 | ±1.0 | ±1.0 | ±0.8 |
| 250 | 200/220 | 10～120 | ±1.2 | ±1.2 | ±0.8 |
| 300 | 250/280 | 10～150 | ±1.5 | ±1.5 | ±1.0 |
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All dimensions are in millimeters (mm). Tolerance values increase with larger outer diameters, reflecting standard manufacturing precision requirements. Custom sizes and tighter tolerances are available upon request.
Frequently Asked Questions
Q
What do the outer diameter and inner diameter values in the table represent?
The outer diameter refers to the total external measurement of the part, while the inner diameter refers to the size of the bore or hollow section. Multiple inner diameter options for a single outer diameter (e.g., 15/20 for OD 30mm) indicate the available bore size configurations for that specification.
Q
Why do tolerance values increase as the outer diameter gets larger?
Larger components naturally have greater variation during the manufacturing process. As the outer diameter increases from 20mm to 300mm, the dimensional tolerances widen (from ±0.2mm to ±1.5mm) to accommodate standard machining and production capabilities while still maintaining functional precision.
Q
Can I order a custom height that falls outside the listed height range?
The height ranges listed in the table represent standard production specifications. For custom height requirements outside these ranges, please contact our technical team directly. Custom orders are accepted subject to engineering review and minimum order quantities.
Q
Are tighter tolerances available for precision applications?
Yes. For high-precision applications requiring tighter dimensional tolerances than those listed, custom manufacturing options are available. Please provide your specific tolerance requirements and application details when making an inquiry so we can advise on feasibility and pricing.
Q
Why does the height tolerance differ from the outer and inner diameter tolerances for larger sizes?
For larger diameter parts (150mm and above), the height tolerance is controlled more tightly than the diameter tolerances. This is because axial height precision is often more critical for assembly and load-bearing functions, while radial tolerances are slightly relaxed due to the increased difficulty of machining large diameters.
Q
What materials are these components available in?
The dimensional specifications in this table apply across multiple material options. Common materials include carbon steel, stainless steel, aluminum alloy, and engineering plastics. Material selection depends on the application's load, temperature, and corrosion resistance requirements. Please specify your material preference when placing an order.
Packaging and Shipping
Why Choose Southeast Quartz?
Southeast Quartz relies on the superior high-quality quartz ore resources in Donghai County, deeply engages in the deep processing of quartz glass, and has become a core supplier to global customers. All products undergo multiple tests such as helium mass spectrometry leak detection, pressure resistance test, and purity test before leaving the factory to ensure stable performance, no impurities, and no leakage.
10 years
of experience
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