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 Quartz Excellence Since 2015
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 R&D, design, production, sales, and import & export trade, we leverage the region's superior high-quality quartz ore resources to manufacture world-class quartz products.
Deeply engaged in the deep processing of quartz glass, Southeast Quartz has become a core supplier of high-purity quartz consumables. Our mature production technology, strict quality control system, and comprehensive customization capabilities allow us to serve demanding global industries, including photovoltaics, semiconductors, precision laboratories, chemical processing, and advanced lighting.
High-Purity Fused Quartz Rods & Silica Rods
Our high-purity fused quartz rods are engineered to perform under extreme operational conditions. Utilizing premium natural quartz crystals and advanced fusion technologies, we supply rods with exceptional properties.
Thermal Resistance
Withstands continuous operating temperatures up to 1200°C and short-term exposure up to 1450°C. Virtually zero thermal expansion coefficient makes it immune to severe thermal shock.
Corrosion & Acid Resistance
Exceptional chemical stability. Resists almost all acids (including sulfuric, nitric, and hydrochloric acids) at high temperatures, except hydrofluoric and hot phosphoric acids.
Optical Transmittance
High optical clarity spanning from ultraviolet (UV) to infrared (IR) wavelengths. Ideal for fiber optics, light guides, and UV sterilization applications.
| Property Category | Technical Parameters | Value / Performance Range |
|---|---|---|
| Chemical Purity | SiO2 Content | ≥ 99.99% (custom high-purity up to 99.999%) |
| Thermal Performance | Continuous Working Temperature | 1100°C - 1200°C |
| Max Short-Term Temperature | 1450°C | |
| Optical Transmittance | Spectral Transmission (UV-Vis-IR) | ≥ 90% (at 220nm - 2500nm range) |
| Physical Stability | Coefficient of Thermal Expansion | 5.5 × 10^-7 / °C (20°C - 320°C) |
| Electrical Insulation | Dielectric Strength | > 10 kV/mm (at room temperature) |
Featured Quartz Products
We manufacture and customize a comprehensive range of quartz products designed to meet strict industrial dimensions and tolerances.
High Purity Quartz Rod / Fused Silica Rod
Designed for semiconductor processing, fiber optic preforms, and laboratory structural components.
View Details
Plasma-Fused Quartz Ingots
Ultra-homogenous quartz raw material with low hydroxyl (OH) content, perfect for large-scale machining.
View Details
Oversized Fused Quartz Tube
Heavy-wall, large-diameter quartz tubes engineered specifically for high-temperature furnace chambers.
View Details
Custom Size Quartz Furnace Tube
Tailor-made furnace tubes for laboratory and industrial sintering, annealing, and LPCVD processes.
View Details
Premium Quartz Boat for Wafer Processing
High-precision slotted quartz boats for semiconductor diffusion and photovoltaic wafer loading.
View Details
Fused Silica Quartz Plate
Precision ground and polished quartz windows, plates, and substrates with superior optical transmission.
View DetailsIndustrial Applications of Quartz Rods
High-purity fused quartz rods act as structural, optical, and thermal components in high-tech industrial environments worldwide.
Semiconductors
Used as substrate support rods, heating elements, and structural components in ultra-clean wafer chambers and LPCVD tools.
Read Application Details →Photovoltaics (PV)
Essential components in solar cell manufacturing, supporting silicon ingots and wafers during high-temperature thermal diffusion.
Fiber Optics
Acts as structural preforms and light guides, utilizing the high optical transmittance and low attenuation of fused silica.
Laboratory & Chemistry
Used as stirring rods, chemical apparatus supports, and high-temperature research instruments requiring absolute purity.
Product Processing & Factory Display
Equipped with standardized workshops, advanced glass lathes, precision grinders, and optical polishing machinery, we manage the entire production workflow in-house.
Advanced Processing Operations
Factory Infrastructure & Production Line
Global Quartz Excellence
We maintain strict, high-tech manufacturing protocols to ensure our quartz products meet international standards.
Customer Supreme
Adhering to the core philosophy of "Quality First, Customer Supreme, Innovation-Driven, and Integrity Management", we align our processes to serve individual project requirements.
Quality Control
All products undergo rigorous testing, including helium mass spectrometry leak detection, pressure resistance tests, and purity tests prior to shipping.
Customized Services
We provide flexible customization for dimensions, geometries, and specialized tolerances based directly on custom technical drawings and equipment specs.
Trusted by Customers Worldwide
Our products cover all major provinces in China and are exported to Europe, the Americas, Southeast Asia, and the Middle East.
Quality • Service • Global Presence
With reliable product quality, efficient delivery capacities, and attentive after-sales service, Lianyungang Southeast Quartz Products Co., Ltd. has earned extensive industry recognition.
Innovation and Research
Looking ahead, we continue to invest in technological innovation and high-end processing machinery to supply the global market with advanced quartz solutions, contributing directly to the growth of scientific research and clean-tech manufacturing.
International Quality Certifications
ISO Quality
REACH
RoHS
SGS
Test Report
Factory & Workshop Gallery
Take a virtual tour of our state-of-the-art facilities in Donghai County, Lianyungang, Jiangsu.
Frequently Asked Questions
What is the maximum operating temperature for your fused quartz rods?
Our high-purity fused quartz rods can operate continuously at temperatures up to 1200°C. For short-term applications, they can withstand temperatures up to 1450°C without significant deformation.
Can you customize the diameter, length, and shape of the quartz rods?
Yes, we offer custom fabrication. We produce round rods, square rods, half-round rods, and grooved profiles. Diameters can range from 1mm up to 100mm+ with precision-ground tolerances.
Do you provide testing reports and material certifications?
Absolutely. All shipments can be accompanied by SGS, REACH, RoHS, and internal quality inspection reports verifying SiO2 purity, dimensional tolerances, and hydroxyl (OH) content.
Need Custom High-Purity Quartz Rods?
Get in touch with our technical sales team for immediate assistance, pricing, and structural design support.
Contact Our Engineers Now