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Our core range of high-purity fused quartz tubes and components, trusted by U.S. semiconductor fabs, solar manufacturers, and research laboratories.
Lianyungang Southeast Quartz Products Co., Ltd., established in 2015, is located in Donghai County, Lianyungang City, Jiangsu Province — a national base for 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 the demanding working conditions such as vacuum environment, high-temperature sintering, atmosphere control and precision experiments.
The U.S. remains the world's largest consumer of high-purity quartz components, driven by surging demand from chip manufacturing, clean energy, and advanced research sectors.
The U.S. semiconductor industry alone accounts for over $600 billion in annual output. Large-diameter quartz tubes are mission-critical components in diffusion furnaces, CVD systems, and oxidation processes at leading fabs in Arizona, Texas, Oregon, and New York — where TSMC, Intel, Samsung, and Micron are rapidly expanding capacity under the CHIPS and Science Act.
States like Arizona (TSMC), Ohio (Intel), and Texas (Samsung) are investing billions in new fabs, creating unprecedented demand for large-diameter quartz furnace tubes used in diffusion, oxidation, and LPCVD processes.
The U.S. solar manufacturing boom, backed by the Inflation Reduction Act, is driving demand for oversized quartz tubes in silicon ingot growth and wafer processing across California, Nevada, and the Southeast.
Institutions like MIT, Stanford, Caltech, and DOE national labs rely on precision quartz tubes for high-temperature research, plasma studies, and materials science experiments requiring ultra-high purity.
The U.S. UV disinfection and specialty lighting market demands high-transmittance quartz tubes for UV-C water purification systems, industrial curing equipment, and medical sterilization devices.
Petrochemical plants in Texas and Louisiana use large-diameter quartz tubes in high-purity chemical synthesis reactors, benefiting from quartz's unmatched corrosion resistance to HF, HCl, and H₂SO₄.
Defense contractors and aerospace R&D centers across Virginia, California, and Florida utilize quartz tubes in radar systems, missile guidance components, and high-temperature test environments.
Key macro trends reshaping the large-diameter quartz tube supply chain across North America.
The U.S. CHIPS and Science Act has committed over $52 billion to revitalize domestic semiconductor manufacturing. This is directly driving demand for high-purity quartz components in new fab construction projects from coast to coast. Large-diameter quartz tubes (200mm–600mm OD) are essential for the horizontal diffusion furnaces and oxidation tubes used in advanced node chip production.
With the Inflation Reduction Act incentivizing domestic solar panel production, U.S.-based photovoltaic manufacturers are scaling up silicon ingot and wafer production. This requires oversized fused quartz tubes capable of withstanding temperatures above 1100°C in Czochralski crystal growth systems — a specialty of our manufacturing line.
The explosive growth of AI data centers and GPU manufacturing has created a secondary wave of demand for quartz components. Advanced packaging processes including wafer bonding, TSV etching, and high-temperature annealing all require precision quartz tubes that meet sub-ppm purity standards.
Post-pandemic supply chain disruptions have prompted U.S. manufacturers to diversify their quartz component sourcing. Partnering with verified international suppliers offering reliable logistics, fast lead times, and direct technical support has become a strategic priority for procurement teams across the U.S. industrial sector.
As wafer sizes advance from 200mm to 300mm and beyond, the quartz tubes used in diffusion furnaces must scale accordingly. The demand for large-diameter quartz tubes (300mm–600mm bore) has grown significantly, requiring manufacturers to invest in specialized lathe equipment and high-capacity fusion furnaces — capabilities our factory has invested in extensively.
A professional manufacturer with over 10 years of experience in the quartz industry — serving U.S. clients across four major high-tech sectors.
Adhering to the philosophy of "Quality First, Customer Supreme, Innovation-Driven, Integrity Management", the company has established a complete quality inspection system. 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.
Meanwhile, the company provides flexible customized services, and can customize product sizes, structures and specifications according to customers' equipment parameters and process requirements, quickly responding to personalized orders.
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.
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.
Every tube is tested for micro-leaks using helium mass spectrometry — the gold standard for high-vacuum applications in U.S. semiconductor fabs.
Structural integrity verified under pressure conditions exceeding standard operating requirements for industrial furnace environments.
SiO₂ purity ≥99.99%, with trace metal contamination below 1 ppm — meeting the stringent requirements of U.S. semiconductor and photovoltaic processes.
OD from 20mm to 600mm+, any wall thickness, any length — engineered to match your exact equipment parameters and process specifications.
State-of-the-art manufacturing facilities in Donghai County — China's premier silicon material production base — equipped with advanced quartz processing and quality control systems.
From raw quartz ore selection to finished precision tubes — our end-to-end manufacturing process ensures the highest quality at every stage.
Get a custom quote tailored to your exact specifications. Our engineering team responds within 24 hours with technical recommendations and pricing for U.S.-bound orders.
Request a Custom Quote →Beyond large-diameter tubes — our full portfolio of precision quartz components for semiconductor, photovoltaic, laboratory, and industrial applications.
