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 - Standardizing High-Purity Fused Silica
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.
High-Temperature Quartz Lamp Holders & Components
Engineered for extreme thermal environments, vacuum systems, and precision heating applications
Extreme Thermal Stability
All products are made of high-purity fused quartz raw materials, featuring excellent high-temperature resistance (up to 1200℃ continuous working temperature, and short-term exposure up to 1450℃), thermal shock resistance, and rapid cooling stability.
Precision Mechanical Design
Our quartz lamp holders and high-temperature components are engineered to precise tolerances. This ensures perfect electrical insulation, structural alignment, and secure placement of heating elements within demanding vacuum systems and sintering furnaces.
Corrosion & Purity Guard
Featuring high chemical purity (SiO2 > 99.99%), our quartz components offer superior acid corrosion resistance and high light transmittance. They prevent contamination in semiconductor processing and precision laboratory experiments.
Featured Quartz Products
Explore our selection of premium high-temperature quartz tubes, plates, boats, and components designed for industrial excellence.
Heat Resistant Quartz Lamp Holder for Industrial Use
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Custom Size Quartz Furnace Tube for Lab & Industry
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Oversized Fused Quartz Tube for High Temp
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Premium Quartz Boat for High Temperature Processes
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Fused Silica Quartz Plate – Heat Resistant
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High Purity Quartz Rod / Fused Silica Rod
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Custom Transparent Quartz Glass Insulation Ring
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Customized Quartz Instruments & Components
View DetailsProduct Processing Display
Witness our precision craftsmanship, advanced CNC machining, fire polishing, and custom glassblowing capabilities.
Global Quartz Excellence
Our commitment to delivering top-tier quartz products with unmatched service and quality control.
01. Customer Supreme
Adhering to the philosophy of "Quality First, Customer Supreme, Innovation-Driven, Integrity Management", the company has established a complete quality inspection system. We prioritize client specifications, target application environments, and operational efficiency to deliver tailored quartz glass solutions.
02. 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. Our advanced testing equipment verifies mechanical tolerances and thermal resilience before dispatch.
03. 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. Our engineers collaborate with clients to optimize designs for thermal systems.
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.
Advanced Fused Silica Applications
Our quartz lamp components are widely integrated into rapid thermal processing (RTP) equipment, UV curing chambers, and semiconductor epitaxy reactors. The low coefficient of thermal expansion of our fused silica ensures that dimensional tolerances remain stable, preventing gas leakage and structural failure under cycling temperatures.
By sourcing raw materials from local high-purity quartz reserves in Donghai County, we maintain a cost-efficient supply chain while guaranteeing that trace metallic impurities are kept to a minimum (typically under 15 ppm). This makes our quartz tubes, boats, and rings highly suitable for cleanroom environments and vacuum operations.
Factory and Workshop Display
A tour inside our modern production facilities, showcasing our advanced manufacturing equipment and clean storage environments.
Additional Workshop & Equipment Views
Certificate Display & Quality Standards
Our quartz products conform to strict international quality, environmental, and safety regulations.
Industrial Applications of Fused Quartz
How our high-purity quartz components support advanced manufacturing and scientific research.
Semiconductor Processing
In wafer fabrication, quartz components like furnace tubes, bell jars, and wafer boats are essential. They withstand extreme heat and chemical vapors during diffusion, oxidation, and LPCVD processes without releasing trace metals that could ruin delicate microcircuits.
Photovoltaic Solar Cells
The solar industry relies on high-purity quartz boats and crucibles to process silicon ingots and wafers. Our quartz products resist deformation at high temperatures, ensuring consistent wafer spacing and clean environments for solar cell thermal processing.
High-Temperature Lighting
Quartz lamp holders and envelopes are key parts of UV lamps, halogen bulbs, and infrared heaters. Their low thermal expansion and high optical clarity enable high light transmission and safe operation under intense heat.
Chemical & Acid Purification
Quartz glass is highly resistant to acids (except hydrofluoric acid), making it ideal for chemical distillation, tri-acid purification equipment, and laboratory containers. It ensures high purity and prevents chemical contamination.
Laboratory & R&D Instruments
Research laboratories use quartz beakers, flasks, and combustion tubes for high-temperature reactions. The material's thermal shock resistance allows it to go from red-hot temperatures to cold water without cracking.
Electrical & Thermal Insulation
With its excellent dielectric strength and thermal resistance, quartz glass works as a reliable insulator in high-voltage and high-temperature electrical systems, including heating element supports and isolation rings.
Need Custom High-Temperature Quartz Components?
Contact Lianyungang Southeast Quartz Products Co., Ltd. today. Our engineering team is ready to help with technical drawings, material selection, and custom quotes.