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
Pioneering Excellence in Fused Quartz Processing
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 the demanding working conditions such as vacuum environments, high-temperature sintering, atmosphere control, and precision experiments.
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High-Temperature Quartz Glass Plates Properties
Engineered to perform under extreme thermal, chemical, and optical conditions
Thermal Resistance
Maintains structural integrity at continuous operating temperatures up to 1200°C, with short-term exposure limits reaching 1450°C.
High Chemical Purity
Manufactured using silicon dioxide ($SiO_2$) purity levels of >99.99%, preventing contamination in critical semiconductor environments.
Low Thermal Expansion
Extremely low coefficient of thermal expansion ($5.5 \times 10^{-7}/^{\circ}\text{C}$), offering unrivaled thermal shock resistance under rapid temperature fluctuations.
Optical Transmittance
Outstanding transmission properties across ultraviolet (UV), visible, and infrared (IR) spectrums, ideal for optical applications.
Featured Quartz Products
Precision-engineered solutions for high-performance industrial applications
Fused Silica Quartz Plate – Heat Resistant
High-temperature resistant quartz plates with excellent optical surface flatness and minimal chemical impurities.
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Custom Size Quartz Furnace Tube
Designed for laboratory & industrial furnace systems demanding high vacuum and thermal endurance.
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Premium Quartz Boat for High Temp
Precision slotted quartz boats engineered for wafer processing and high-temperature sintering environments.
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High Purity Quartz / Fused Silica Rod
Superior mechanical strength and low thermal expansion rods for semiconductor and research laboratories.
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Custom Transparent Quartz Glass Ring
High-temperature resistant insulation rings designed for critical vacuum seals and semiconductor chambers.
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Customized Quartz Instruments
Individually tailored laboratory glassware, beakers, condensers, and custom-structured quartz assemblies.
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Plasma-Fused Quartz Ingots
High-density, low-bubble raw material quartz ingots engineered for large-scale optical and semiconductor component milling.
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Oversized Fused Quartz Tube
Large-diameter quartz tubes engineered to withstand intense thermal stress in industrial furnace applications.
View DetailsGlobal Quartz Excellence
Uncompromising quality, rigorous testing, and customized solutions
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.
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 dedication to R&D allows us to refine thermal annealing processes, minimize internal stress in quartz plates, and achieve superior surface finishes (ground, polished, or fire-polished) based on your exact specifications.
Advanced Manufacturing & Processing
State-of-the-art quartz processing equipment ensuring high dimensional accuracy
Product Processing Display
Factory Display
Production Facility & Machining Capacity
Leveraging high-quality raw materials and mature processing techniques
Why Choose Our Fused Quartz Plates?
As a leading fused quartz plates manufacturer, we understand that thickness uniformity, minimal bubble inclusion, and surface finish are critical parameters for optical and thermal components. Our manufacturing processes utilize precision flat grinding machines, chemical etching, and optical polishing systems to guarantee tolerances down to ±0.05mm. Whether you need standard dimensions or complex geometry with CNC milled slots, steps, and drilled holes, our facility is equipped to handle high-volume industrial orders as well as custom low-volume prototype builds.
Industries & Applications
Where high thermal endurance and purity meet real-world industrial challenges
Semiconductor Processing
Fused quartz plates serve as wafer carriers, furnace windows, and insulation shields in chemical vapor deposition (CVD), etching, and diffusion chambers.
Read Application Study →Photovoltaic (Solar)
Essential for high-temperature diffusion tubes, quartz boats, and furnace components used during the manufacturing of silicon solar cells.
Read Application Study →Laboratory & Chemical
Provides highly stable platforms for acid digestion, distillation, and high-temp vacuum experiments where chemical corrosion resistance is paramount.
Read Application Study →Want to know more about how our quartz tubes, rods, and burner components integrate with these industries?
Certified Quality & Compliance
Strict quality control processes verified by global certification standards
Our export-grade quartz sheets and plates are fully certified under international standards. We perform routine testing including helium mass spectrometry leak detection, mechanical stress analysis, and spectrophotometer optical transmittance runs to ensure trace elements remain within client-specified tolerances.
Ready to Discuss Your Custom Quartz Project?
Get in touch with our technical sales engineers today for a detailed quote on high-temperature quartz glass plates, tubes, boats, or custom laboratory apparatus.