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
High-Performance Quartz Carriers for Advanced Solar Technology
In the rapidly evolving solar energy sector, the efficiency of photovoltaic (PV) cells relies heavily on the thermal processing equipment and accessories used during manufacturing. As a premier Photovoltaic Quartz Boats Supplier, we specialize in delivering state-of-the-art High-Temperature Quartz Boats designed to withstand the extreme conditions of diffusion, oxidation, and deposition furnaces.
Our high-temperature quartz boats are engineered from ultra-high-purity fused silica (SiO2 > 99.99%), ensuring zero contamination of silicon wafers. They feature exceptional resistance to thermal shock, structural deformation, and chemical corrosion, making them the ideal choice for modern solar cell production lines, including TOPCon, PERC, and HJT architectures.
Company Profile
Lianyungang Southeast Quartz Products Co., Ltd.
Lianyungang Southeast Quartz Products Co., Ltd., established in 2015, is located in Donghai County, Lianyungang City, Jiangsu Province—a renowned national base for the silicon material industry. As a professional manufacturer integrating research & development, custom design, precise production, global sales, and import & export trade, we rely on the superior high-quality quartz ore resources native to Donghai County.
We deeply engage in the deep processing of quartz glass, and have become a core supplier of quartz consumables for photovoltaic, semiconductor, laboratory, chemical, lighting, and other high-tech industries. Our operations are backed by mature production technology, a strict quality control system, and comprehensive customized services designed to meet specific client requirements.
Our standardized production workshops house advanced CNC quartz processing equipment, enabling full-process production capacity from raw material refinement to finished product manufacturing. We produce high-purity fused quartz tubes, furnace tubes, bell jars, quartz boats, lamp holders, and customized laboratory instruments.
Premium Quartz Products
High-Purity Solutions Engineered for Extreme Sintering and Thermal Environments
Premium Quartz Boat for High Temperature Processes
View Details
Custom Size Quartz Furnace Tube for Lab & Industry
View Details
Oversized Fused Quartz Tube for High Temp Applications
View Details
Quartz Bell Jar with Excellent Thermal Stability
View Details
Fused Silica Quartz Plate – Heat Resistant
View Details
High Purity Quartz Rod / Fused Silica Rod
View Details
Custom Transparent Quartz Glass Insulation Ring
View Details
Customized Quartz Instruments & Labware
View DetailsGlobal Quartz Excellence
Our commitment to quality, precision, and reliable customer service makes us a trusted global supplier.
01. Customer Supreme
Adhering to the philosophy of "Quality First, Customer Supreme, Innovation-Driven, and Integrity Management", we have established a complete quality inspection and service framework to prioritize customer satisfaction in every custom batch.
02. Strict Quality Control
All finished quartz items undergo multiple tests—including helium mass spectrometry leak detection, pressure resistance testing, and purity validation—before leaving the factory to ensure stable performance and impurity-free builds.
03. Customized Services
We provide flexible customization options, adjusting dimensions, slot counts, configurations, and thermal specifications to match unique equipment parameters, guaranteeing compatibility with automated loading systems.
Advanced Photovoltaic Quartz Boat Technology
Supporting solar cell efficiency through thermal stability and high-purity material engineering.
Crucial Role in Solar Wafer Processing
During solar cell fabrication, silicon wafers undergo high-temperature diffusion and deposition processes (such as boron/phosphorus diffusion, LPCVD, and PECVD) at temperatures ranging from 800°C to over 1100°C. High-Temperature Quartz Boats act as the structural carrier, holding hundreds of silicon wafers aligned in slots during these thermal cycles.
Any impurity in the quartz material can migrate into the silicon wafer at elevated temperatures, degrading electrical performance and reducing conversion efficiency. Our quartz boats are manufactured from ultra-pure fused silica, maintaining trace metal impurities below 10-20 ppm, safeguarding wafer integrity.
Engineered to Prevent Devitrification
Continuous exposure to high thermal cycles can cause amorphous quartz glass to transition into a crystalline state (cristobalite), a process known as devitrification. This leads to cracking and deformation. By using premium raw materials and specialized acid-washing and flame-polishing surface treatments, our quartz boats offer superior resistance to devitrification, extending their lifespan and lowering operational costs.
Precision Manufacturing & Product Processing
A visual showcase of our advanced processing techniques, flame working, and CNC machining.
Our Factory & Production Infrastructure
Inside our state-of-the-art facilities located in Donghai County, Lianyungang City.
Additional Production Facility Images
Trusted by Customers Worldwide
Quality • Service • Global Presence
With reliable product quality, efficient delivery capacity, and responsive after-sales support, Lianyungang Southeast Quartz Products Co., Ltd. serves clients across all provinces in China, exporting to Europe, America, Southeast Asia, and the Middle East.
Our international customers rely on our high-temperature quartz boats and furnace tubes to maintain stable run-rates in high-volume solar wafer manufacturing. By working closely with customers on design iterations, we deliver custom-fit solutions that lower defect rates and improve overall thermal processing yield.
Innovation and Research
Looking to the future, we continue to invest in technological innovation and production refinement. Our R&D team works to improve high-temperature stability, dimensional tolerances, and purity levels, contributing to the development of high-end semiconductor and photovoltaic technologies.
Key Customization Options
- Wafer Size Compatibility: 156mm, 166mm, 182mm, 210mm, and custom dimensions.
- Slot Configurations: Custom slot pitch, depth, and angle to prevent wafer slipping or shadowing.
- Structure Styles: Fully welded rod boats, slotted plate boats, and hybrid designs.
- Surface Finish: Chemical etching, fire polishing, or sandblasting for custom surface characteristics.
Certificates & Quality Assurance
Our production processes comply with global quality, safety, and environmental standards.
Quality System
REACH Compliant
RoHS Compliant
SGS Audited
Material Test Report
Technical FAQ: High-Temperature Quartz Boats
Common technical questions regarding selection, maintenance, and material properties.
Why is quartz glass preferred for high-temperature solar processes?
Fused quartz glass has an extremely low coefficient of thermal expansion (approx. 5.5 x 10^-7 /°C), giving it excellent thermal shock resistance. It can handle rapid temperature changes and continuous operation up to 1100°C - 1200°C without mechanical failure or deformation, which is essential for diffusion and deposition furnaces.
How do you prevent contamination of silicon wafers during processing?
We use high-purity natural quartz raw materials with SiO2 content exceeding 99.99%. We enforce strict cleanroom handling, ultrasonic acid washing (using hydrofluoric and nitric acids), and deionized water rinsing to remove surface impurities prior to packaging.
What is the average lifespan of a photovoltaic quartz boat?
Lifespan depends on process conditions, chemical exposure, thermal cycling, and handling. In typical diffusion processes, a high-quality quartz boat lasts several months. Regular acid cleaning to remove built-up dopants and avoiding thermal shock outside recommended limits help extend operating life.
Can you customize quartz boats for automated robotic loading systems?
Yes. Automated loading systems require tight dimensional tolerances (often within ±0.1mm) to prevent wafer damage. We use high-precision CNC slotting and dimensional inspection tools to ensure every custom boat aligns with your system's robotic handling specifications.
Ready to Optimize Your Thermal Processes?
Contact Lianyungang Southeast Quartz Products Co., Ltd. today for technical consultations, custom designs, or volume pricing on high-temperature quartz consumables.