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Custom Size Quartz Furnace Tube from China Suppliers & Factory for Laboratory and Industrial Use

Quartz furnace tubes are essential components crafted from high-purity quartz sand, ideal for high-temperature applications exceeding 1200℃. These tubes are known for their exceptional thermal stability and strong chemical inertness, making them perfect for various industries, including semiconductors, photovoltaics, and new materials. As a key supplier from China, our factory produces these quartz furnace tubes specifically designed for use in vacuum furnaces and diffusion furnaces, Our quartz furnace tubes serve as critical reaction chambers within semiconductor and photovoltaic thermal processing equipment. Manufactured from high-purity silicon dioxide (SiO₂) with a composition of ≥99.99% and a low hydroxyl (OH) content of

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 the quartz tubes?

A: We offer straight tubes, U-shaped tubes, spiral tubes, and fully customized special structures to meet various application requirements.

Q: What size range do you support for quartz tubes?

A: Our quartz tubes are available with an outer diameter from 10mm to 500mm, wall thickness from 1mm to 20mm, and length from 100mm to 6000mm. Custom sizes are produced according to customer drawings.

Q: Can the tubes be made with vacuum-sealed or flange connection designs?

A: Yes. We provide flange connection, closed end, quartz flange, and vacuum-sealed design options to suit high-precision and industrial applications.

Q: What surface treatment options are offered?

A: We offer polished surfaces (both inner and outer), frosted finish, and acid-etched surface treatment depending on your optical and functional needs.

Q: Can I order quartz tubes with custom specifications?

A: Absolutely. All dimensions, shapes, surface treatments, and structural features can be tailored to your specific requirements based on submitted drawings or specifications.

Q: Are these quartz tubes suitable for high-temperature or industrial use?

A: Yes. With vacuum-sealed and flange connection design options, along with precision surface treatments, these quartz tubes are well-suited for high-temperature furnaces, semiconductor processing, laboratory equipment, and other demanding industrial applications.

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.