Quartz Furnace Tube
Oversized Quartz Tube
Quartz Boat
Quartz Plate
Quartz Lamp Holder
Quartz Rod
Quartz Ring
Customized Quartz Products
Plasma-Fused Quartz Ingots
Quartz Irregular Shaped Sheets
Quartz Crystal Singing Pyramid
Half-white Coated Short-wave Infrared Quartz Heating Lamp
Company Profile
Southeast Quartz - High-Purity Quartz Glass Pioneer
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.
Leveraging premium natural resources and advanced thermal engineering to deliver unmatched thermal stability and chemical purity.
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.
Premium Fused Quartz Products
Explore our high-performance, heat-resistant quartz components designed for demanding industrial environments.
Heat Resistant Quartz Lamp Holder for Industrial Use
Specially designed to support high-intensity industrial lamps under extreme temperatures. Features superior electrical insulation and thermal resistance.
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Oversized Fused Quartz Tube for High Temp Applications
Engineered for large-scale heat treatment, chemical vapor deposition (CVD), and diffusion processes in semiconductor manufacturing.
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Custom Size Quartz Furnace Tube for Laboratory & Industrial Use
Tailor-made furnace tubes offering exceptional thermal shock resistance and high chemical purity for precision thermal processing.
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Premium Quartz Boat for High Temperature Processes
Custom-machined wafer carriers and combustion boats. High structural integrity and minimal contamination risk for solar & semiconductor wafers.
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Fused Silica Quartz Plate – Heat Resistant
Precision polished or ground quartz plates, ideal for optical windows, semiconductor substrates, and high-temperature sight glasses.
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Custom Transparent Quartz Glass Ring Insulation Ring
High-purity insulating rings offering exceptional thermal barrier properties and dimensional stability under high vacuum.
View DetailsWhy High-Purity Quartz Lamp Holders Matter
Understanding the critical role of custom-machined fused silica components in high-intensity lighting and heating systems.
Extreme Heat and Electrical Insulation
In modern industrial heating, ultraviolet (UV) curing, and rapid thermal processing (RTP), lamps operate at extremely high temperatures. Standard materials like ceramics or metals fail due to thermal expansion, chemical degradation, or electrical breakdown. Fused silica quartz lamp holders provide the ultimate solution.
Quartz glass possesses an incredibly low coefficient of thermal expansion (5.5×10⁻⁷/°C), making it virtually immune to thermal shock. A quartz lamp holder can be heated to over 1000°C and immediately plunged into cold water without cracking. This ensures the structural integrity of the lamp housing even during rapid cycling.
Furthermore, quartz offers excellent dielectric properties. At high temperatures, it maintains high electrical resistivity, preventing electrical leakage or short circuits from high-voltage ignitions commonly used in UV arc lamps and medium-wave infrared heaters.
Key Material Advantages:
- Ultra-High Purity: SiO₂ content > 99.99%, preventing contamination.
- Exceptional Heat Resistance: Safe continuous operation up to 1200°C.
- Zero Outgassing: Crucial for vacuum and semiconductor environments.
- Precision Tolerances: Micro-machined to +/- 0.05 mm for perfect lamp alignment.
Cost-Effective Customization
We provide tailor-made quartz lamp holders matching specific pin configurations, cooling channels, and mounting brackets, reducing downstream assembly costs.
Extended Lamp Lifespan
By offering superior heat dissipation and maintaining stable optical alignment, our quartz holders extend the service life of expensive UV and IR lamp tubes.
Semiconductor Grade Material
Free from trace heavy metals, our high-purity quartz products prevent wafer contamination in critical oxidation, diffusion, and etching processes.
Advanced Manufacturing & Processing
Witness our state-of-the-art quartz glass processing workshops in Donghai County. From raw materials to complex finished components.
Product Processing Display
Advanced Facility Display
Global Quartz Excellence
Our core values guide us to deliver world-class quartz components that meet strict international standards.
Customer Supreme
Adhering to the philosophy of "Quality First, Customer Supreme, Innovation-Driven, Integrity Management", the company has established a complete quality inspection system.
Quality Control
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.
Customized Services
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.
Certified Quality Standards
Our commitment to quality is verified by leading global certification bodies. We strictly adhere to ISO, REACH, RoHS, and SGS standards.
ISO9001 Certificate
REACH Certificate
RoHS Certificate
SGS Testing
Purity Test Report
Trusted by Customers Worldwide
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.
Our Advanced Production Facility
A tour of our manufacturing facility in Donghai County. High-precision machinery ensures top-grade output for global industries.
