Hot Products

Custom Quartz Furnace Tube for Laboratory & Industrial Use | China Suppliers & Factory Direct

Quartz furnace tubes, manufactured from high-purity quartz sand, are essential components for high-temperature heat treatment applications in various industries, including semiconductors, photovoltaics, and new materials. These tubes exhibit exceptional resistance to temperatures exceeding 1200℃, alongside excellent thermal stability and strong chemical inertness. As a crucial element in vacuum furnaces and diffusion furnaces, they provide a controlled environment for wafer processing at elevated temperatures, These high-quality quartz furnace tubes are made from synthetic fused silica (SiO₂ ≥ 99.99%), featuring a low hydroxyl (OH) content of less than 50ppm. As reliable suppliers in China, we ensure that our factory produces top-tier products that meet the rigorous demands of thermal processing equipment. Choose our quartz furnace tubes for unparalleled performance and quality in your high-temperature applications

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

Shapes	Straight tube, U-shaped tube, spiral tube, and customized special structures.
Sizes	Outer diameter 10mm–500mm, wall thickness 1mm–20mm, length 100mm–6000mm (per customer drawings).
Features	Flange connection, closed end, quartz flange, and vacuum-sealed design available.
Surface Treatment	Polished (inner/outer), frosted, or acid-etched surface.

Frequently Asked Questions

Q What shapes are available for custom quartz tubes?

We offer straight tubes, U-shaped tubes, spiral tubes, and fully customized special structures tailored to your specific application requirements.

Q What size range can be manufactured for quartz tubes?

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

Q Are vacuum-sealed or flanged quartz tube designs available?

Yes. We support flange connections, closed-end designs, quartz flanges, and vacuum-sealed configurations to meet demanding laboratory and industrial requirements.

Q What surface treatment options are offered for quartz tubes?

Available surface treatments include inner and outer polishing, frosted (matte) finish, and acid-etched surface, each suited to different optical, thermal, or chemical application needs.

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

Absolutely. All dimensions including outer diameter, wall thickness, and length can be produced based on customer-supplied drawings or technical specifications to ensure a precise fit for your application.

Q What is the difference between polished and frosted quartz tube surfaces?

Polished surfaces (inner or outer) provide high optical clarity and smoothness, ideal for applications requiring light transmission or chemical purity. Frosted surfaces diffuse light and offer a matte appearance, commonly used where reduced reflectivity or improved grip is needed.

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.