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Custom Transparent Quartz Glass Rings - High Temperature Resistant Insulation Rings from China Suppliers & Factory

Discover our premium quartz rings, manufactured from high-purity fused silica in our advanced factory in China. These rings are designed to offer exceptional thermal stability and can withstand temperatures up to 1100°C, along with minimal thermal expansion. Our quartz rings provide outstanding light transmittance and are highly resistant to acids and corrosion, making them ideal for various applications. With superior electrical insulation properties, high dimensional accuracy, and robust mechanical strength, these components are perfect for use in semiconductor manufacturing, high-temperature furnaces, optical devices, laboratory equipment, and the photovoltaic industry. As trusted suppliers, we offer quartz rings that serve as sealing rings, insulation parts, and structural components, ensuring reliability in harsh environments. Choose our factory for quality quartz rings that meet the demands of your industry

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

Standard dimension specifications and tolerance limits. Swipe horizontally to view full table data on mobile devices.

Outer diameter	Inner diameter	Height	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

Frequently Asked Questions

Q: What is the range of Outer Diameters available in this specification?

The Outer Diameter (OD) ranges from a minimum of 20mm up to a maximum of 300mm, accommodating various industrial and mechanical application requirements.

Q: How do the dimensional tolerances change with size?

Tolerances scale with the dimension size to ensure precision. For smaller sizes (OD 20-40), the tolerance is kept tight at ±0.2mm. For larger dimensions like OD 300, the tolerance scales up to ±1.5mm for the outer and inner diameters.

Q: What are the height options for an Outer Diameter of 100?

For parts with an Outer Diameter of 100mm, the available height range is between 10mm and 80mm, with a strict height tolerance of ±0.5mm.

Q: What are the standard Inner Diameters for the largest Outer Diameter (300mm)?

For the largest listed Outer Diameter of 300mm, the standard Inner Diameters are 250mm and 280mm, with a height range of 10mm to 150mm.

Q: Are there specific height tolerances for these dimensions?

Yes, height tolerances are strictly defined based on the part size. They start at a precise ±0.2mm for smaller sizes (OD 20-40) and gradually increase up to ±1.0mm for the largest size (OD 300).

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.