Hot Products

Custom Quartz Furnace Tube for Laboratory & Industrial Use - High-Purity Suppliers & Factory in China

Quartz furnace tubes, produced by leading suppliers in China, are engineered from high-purity quartz sand, ensuring exceptional resistance to temperatures exceeding 1200℃. These tubes boast outstanding thermal stability and chemical inertness, making them vital components in high-temperature heat treatment processes across industries such as semiconductors, photovoltaics, and advanced materials. As essential elements of vacuum and diffusion furnaces, they facilitate efficient thermal processing, Our quartz furnace tubes, crafted from high-purity synthetic fused silica (SiO₂ ≥ 99.99%) with a low hydroxyl (OH) content of less than 50ppm, provide a controlled environment ideal for wafer processing in oxidation and diffusion furnaces. This product is an indispensable choice for manufacturers seeking reliable and high-performance equipment, sourced directly from a reputable factory in China

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

Key Application Fields of Large-Diameter Quartz Tubes

Large-diameter quartz tubes are essential components in various high-end industries, thanks to their excellent thermal stability, chemical inertness and high light transmittance.

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

Product Details

All quartz glass tubes are precision-manufactured to customer specifications, supporting a wide range of shapes, dimensions, surface treatments, and connection features.

Shapes	Straight Tube U-Shaped Tube Spiral Tube Customized Special Structures
Sizes	OD: 10mm – 500mm Wall: 1mm – 20mm Length: 100mm – 6000mm Per customer drawings
Features	Flange Connection Closed End Quartz Flange Vacuum-Sealed Design
Surface Treatment	Polished (Inner / Outer) Frosted Acid-Etched

Frequently Asked Questions

Q What shapes are available for quartz glass tubes?

Quartz glass tubes are available in straight tube, U-shaped tube, spiral tube, and fully customized special structures to meet a wide variety of industrial and laboratory requirements.

Q What size range do your quartz tubes cover?

The tubes are available with an outer diameter from 10mm to 500mm, wall thickness from 1mm to 20mm, and lengths from 100mm to 6000mm. All dimensions can be produced according to customer drawings and specifications.

Q What special features or connection options are offered?

Several design options are available, including flange connection, closed end, quartz flange, and vacuum-sealed design. These features make the tubes suitable for high-vacuum systems, sealed environments, and precision laboratory setups.

Q What surface treatment options are available for quartz tubes?

Surface treatments include polished (both inner and outer surface), frosted, and acid-etched finishes. Each treatment is selected based on the application's optical, chemical, or mechanical requirements.

Q Can quartz tubes be manufactured to custom drawings or specifications?

Yes. All quartz glass tubes can be customized based on customer-provided drawings or technical specifications, covering shape, dimensions, surface treatment, and connection design.

Q Are vacuum-sealed quartz tubes suitable for high-temperature applications?

Yes. Quartz glass has excellent thermal resistance and can withstand high temperatures, making vacuum-sealed quartz tubes ideal for use in furnaces, semiconductor processing, chemical reactors, and other demanding high-temperature environments.

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.