Hot Products

jimeng-2025-12-02-1191-保持三个透明塑料支架主体不变，扩展黑色背景区域使画面变为正方形构图(1).png

jimeng-2025-12-02-1619-扩展黑色背景区域使画面变为正方形构图(1).png

jimeng-2025-12-02-5108-扩展黑色背景区域使画面变为正方形构图(1).png

jimeng-2025-12-02-6433-扩展黑色背景区域使画面变为正方形构图(1).png

Heat Resistant Quartz Lamp Holder for Industrial Use - High-Quality Supplier & Factory in China

Quartz lamp holders are crafted from high-purity quartz glass, renowned for its ability to withstand high temperatures while offering exceptional insulation and light transmittance. These lamp holders are compatible with various light sources, including halogen lamps and infrared heating lamps. As a crucial component of lighting and heating equipment manufactured by leading China suppliers, they ensure the stable operation of light sources by enduring high-temperature radiation and current surges, In addition, our quartz inner and outer lamp caps serve as essential end components for quartz lamps, such as UV, infrared, and halogen lamps. These caps are designed for efficient electrical connection, reliable sealing, and sturdy structural support. The inner cap connects directly to the internal electrode or light-emitting structure, while the outer cap provides the external connection and mounting required for optimal performance, Partner with our factory for high-quality quartz lamp holders and caps, crafted to meet industry standards and exceed your expectations

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

Max Temperature

1300°C

Compressive Strength

1100Mpa

Mohs Hardness

5.5 ~ 6.5

Purity Grade

10/20/100 PPM

Technical Specifications

Mechanical behavior	Standard values
Density	2.2g/cm3
Compressive strength	1100Mpa
Flexural strength	67Mpa
Poisson's ratio	0.14~0.17
Young's modulus	72000Mpa
Modulus of rigidity	31000Mpa
Mohs hardness	5.5~6.5
Transformation point	1280°C
Softening Point	1780°C
Annealing point	1250°C
Specific heat (20 ~ 350 °C)	670J/kg .°C
Thermal conductivity (20 °C)	1.4W/m.°C
Index of refraction	1.4585
Low thermal expansion coefficient	5.5*10-7cm/cm.°C
Thermal processing temperature	1750~2050°C
Short-term use temperature	1300°C
Long-term use temperature	1100°C
Material	Silicon Dioxide (Natural Quartz )
Color	Transparent or colorless
Surface	No Air Bubble ,no line
Strain	1270 C Fused The Quartz Glass Brick
PPM grade	Controlled 10/20/100PPM
Shape	Circle
Thickness	2MM-20MM

Frequently Asked Questions

Q What is the maximum operating temperature for this Fused Quartz Glass?

This material features excellent thermal stability, with a long-term continuous use temperature of 1100°C and a short-term peak use temperature of up to 1300°C.

Q What is the purity level (PPM grade) of the Silicon Dioxide material?

The purity of our Silicon Dioxide (Natural Quartz) is strictly monitored and controlled within the PPM grades of 10, 20, or 100 PPM depending on your application requirements.

Q How does the material perform under high mechanical pressure?

It offers high mechanical strength, boasting a compressive strength of 1100 Mpa and a flexural strength of 67 Mpa, making it highly resistant to structural deformation.

Q What is the thermal expansion coefficient of this quartz glass?

The material has an extremely low thermal expansion coefficient of 5.5*10-7 cm/cm.°C, providing exceptional thermal shock resistance and dimensional stability under rapid temperature shifts.

Q What are the available dimensions, shapes, and surface qualities?

The standard shape is circular with a thickness range of 2mm to 20mm. The surface is highly polished, transparent, and completely free of air bubbles or lines.

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.