Quartz Tubes Supplier in China | High-Quality Quartz Glass Tubes

Lianyungang Southeast Quartz Products Co., Ltd., established in 2015, is located in Donghai County, Lianyungang City, Jiangsu Province—a national base for the silicon material industry. As a professional manufacturer integrating R&D, design, production, sales, and import & export trade, the company 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 of quartz consumables for photovoltaic, semiconductor, laboratory, chemical, lighting, and other industries with mature production technology, strict quality control system, and complete customized services.

The company has standardized production workshops, advanced quartz processing equipment, and a professional R&D team, with full-process production capacity from quartz raw material processing to finished product manufacturing. It can produce a full range of quartz products, including high-purity fused quartz tubes, quartz furnace tubes, quartz bell jars, quartz boats, quartz lamp holders, quartz crucibles, quartz instruments (beakers, condensers, distillers, etc.), and tri-acid purification equipment.

All products are made of high-purity fused quartz raw materials, featuring excellent high-temperature resistance (up to 1200℃), thermal shock resistance, corrosion resistance, high light transmittance, and good electrical insulation performance, which can meet demanding working conditions such as vacuum environments, high-temperature sintering, atmosphere control, and precision experiments.

Fused quartz glass is an extraordinary material featuring a single-component glass structure consisting of silicon dioxide (SiO2). Because of its extremely high purity (often exceeding 99.99%), it exhibits unique properties that conventional silicate glass cannot match.

At Southeast Quartz, we utilize advanced raw material classification and fusion techniques to control impurities. Our quartz tubes demonstrate outstanding performance under thermal stress and chemical exposure.

• High Thermal Resistance: Continuous operation at temperatures up to 1100°C, and short-term exposure limit up to 1200°C. Softening point is approximately 1730°C.
• Minimal Thermal Expansion: Extremely low coefficient of thermal expansion (approx. 5.5 x 10^-7/°C), providing supreme thermal shock resistance. Can be heated to 1100°C and plunged directly into cold water without cracking.
• Broad Spectral Transmission: High optical transmittance across ultraviolet, visible, and infrared wavelengths.
• Superior Chemical Inertness: Extremely resistant to acids (except hydrofluoric and phosphoric at high temperatures), making it the ideal container for high-purity chemical processing.

Quality • Service • Global Presence

With reliable product quality, efficient delivery capacity, and thoughtful after-sales service, the products of Lianyungang Southeast Quartz Products Co., Ltd. not only cover all provinces and cities in China, but also are exported to many countries and regions in Europe, America, Southeast Asia, the Middle East, etc., winning wide recognition and trust from customers at home and abroad.

Innovation and Research

In the future, the company will continue to deeply cultivate the field of quartz products, continuously improve technological innovation and production technology levels, and strive to provide global customers with higher-quality and more professional quartz product solutions, contributing to the high-quality development of high-end manufacturing and scientific research fields.