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
Lianyungang Southeast Quartz Products Co., Ltd.
Established in 2015, Lianyungang Southeast Quartz Products Co., Ltd. is located in Donghai County, Jiangsu Province—China's national base for the silicon material industry. As a premier professional manufacturer integrating R&D, custom design, high-volume production, sales, and global import-export trade, we leverage the superior high-quality quartz ore resources of Donghai County to deliver elite quartz glass consumables.
We specialize in the deep processing of high-purity quartz glass, positioning ourselves as a vital core supplier of quartz components for the semiconductor, photovoltaic, laboratory, chemical processing, and optical lighting industries. With mature production technologies, a strict quality control system, and comprehensive customization capabilities, we fulfill the most rigorous engineering standards.
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High-Purity Fused Quartz Products
Explore our premium range of custom-fabricated quartz glass solutions engineered to withstand extreme thermal, chemical, and physical environments.
Custom Size Quartz Furnace Tube
Designed for industrial and laboratory furnaces. Features exceptional thermal shock resistance and high purity to prevent contamination during high-temperature treatments.
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Oversized Fused Quartz Tube
Large-diameter quartz tubes engineered for heavy-duty thermal processing. Ideal for large batch semiconductor processing and advanced industrial furnace applications.
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Premium Quartz Boat
Precision slotted quartz wafer carriers (boats) designed for high-temperature diffusion, oxidation, and LPCVD processes in the semiconductor and solar cell industries.
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Fused Silica Quartz Plate
Optically clear, high-temperature resistant plates and windows. Perfect for optical viewports, semiconductor substrates, and chemical apparatus components.
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High Purity Quartz Rods
Solid fused silica rods featuring excellent mechanical strength, chemical resistance, and high optical transmittance. Ideal for semiconductor structural parts.
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Custom Quartz Insulation Rings
Highly insulating, thermal shock resistant quartz rings. Machined to tight tolerances for electrical and thermal isolation in high-vacuum chambers.
View Product DetailsWhy Choose High-Purity Fused Quartz?
Fused quartz glass is an extraordinary engineering material consisting almost entirely of pure silicon dioxide (SiO2). Unlike regular glass, it exhibits extreme properties that make it indispensable in advanced technology manufacturing:
- Extreme Thermal Performance: Maintains structural integrity at continuous operating temperatures up to 1200°C, with a softening point near 1700°C.
- Zero Thermal Expansion: Coefficient of thermal expansion is virtually zero (approx. 5.5 × 10⁻⁷/°C), allowing it to withstand rapid heating and quenching without cracking.
- Unparalleled Chemical Purity: Minimizes metallic impurities to the parts-per-million (PPM) level, preventing contamination in silicon wafer processing.
- Broad Spectrum Transmittance: Offers exceptional optical transmission from the ultraviolet (UV) region through the visible spectrum into the infrared (IR) range.
- Outstanding Electrical Insulation: Maintains high dielectric strength even at high operating temperatures, making it a perfect electrical insulator.
Key Application Fields
Our high-purity custom quartz tubes and components are key building blocks in modern high-tech supply chains:
Semiconductors
Furnace tubes, bell jars, and carriers for CVD, LPCVD, and diffusion.
Solar Photovoltaics
Silicon wafer diffusion furnace tubes, boats, and thermal process parts.
Laboratory & Chem
Distillation apparatus, acid purification systems, beakers, and crucibles.
Precision Optics
High-temperature UV lamp jackets, optical windows, and laser shields.
Global Quartz Excellence
We combine advanced material science, rigorous quality control, and client-centric engineering to deliver world-class quartz components.
Customer Supreme
Adhering to the core philosophy of "Quality First, Customer Supreme, Innovation-Driven, and Integrity Management," we maintain a highly responsive communication network to serve global buyers and engineers efficiently.
Quality Control
All raw materials and finished products undergo multiple testing procedures, including helium mass spectrometry leak detection, high-pressure tolerance testing, and spectrographic purity analysis to ensure zero-defect delivery.
Customized Services
We offer extreme flexibility in design and fabrication. We can customize outer/inner diameters, wall thicknesses, flanges, slots, and structural configurations to perfectly match your equipment and workflow parameters.
State-of-the-Art Processing & Production
Take a look inside our high-tech fabrication facilities where raw silica is transformed into high-precision quartz instruments.
Product Processing Display
Factory Display
International Quality Certifications
We adhere to strict international production standards to guarantee the reliability, performance, and safety of our quartz components.
ISO 9001 Quality
REACH Compliance
RoHS Directive
SGS Audited
Test Report
Trusted by Customers Worldwide
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 major industrial hubs in China but are also exported to Europe, the Americas, Southeast Asia, and the Middle East.
We continuously invest in technological innovation and production process refinement. Our ultimate goal is to provide global customers with higher-quality, professional, and custom-tailored quartz solutions.
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Factory Gallery & Heavy Equipment
Explore our heavy industrial equipment and clean production floor where we manufacture custom quartz tubes.
Get In Touch
Have questions about our high-purity quartz products or need a custom quote? Contact our engineering and sales team today.
+86 135-8528-6180
+86 138-5128-2778
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