Leave Your Message
In modern analytical chemistry and material science, sample preparation stands as the most critical step determining the accuracy of downstream measurements. Whether utilizing Inductively Coupled Plasma Mass Spectrometry (ICP-MS), Atomic Absorption Spectroscopy (AAS), or gas chromatography, the integrity of the digestion process dictates the validity of the results. Large-Diameter Quartz Tubes have emerged as the foundational vessel for high-temperature, high-pressure, and corrosive sample digestion and testing. Fused silica's unique molecular structure offers an unparalleled combination of thermal stability, chemical inertness, and optical clarity, making it irreplaceable in both commercial laboratories and heavy industrial testing facilities.
As analytical laboratory throughput demands increase, traditional small-scale digestion vessels create operational bottlenecks. Large-diameter designs allow for multi-sample matrix digestion, high-volume gas-washing, and integrated sensor deployment. They minimize surface-area-to-volume ratio issues, reducing contamination risks while maximizing thermal uniformity across large, complex samples.
The commercial market for high-purity quartz glass has seen exponential growth, driven heavily by the semiconductor fabrication boom, stringent environmental monitoring regulations, and advanced metallurgical research. Standard borosilicate glassware fails when subjected to temperatures exceeding 500°C or when exposed to aggressive acid mixtures (such as aqua regia or concentrated nitric acid) at elevated pressures. Large-diameter quartz tubes, capable of sustained operation at up to 1200°C, bridge this technological gap, ensuring safe, contamination-free containment for the most demanding digestion protocols.
Our large-diameter quartz tubes are manufactured from premium-grade natural quartz crystals, refined to achieve ultra-high purity levels (SiO2 ≥ 99.99%).
Withstands continuous operating temperatures up to 1200°C and short-term exposure up to 1450°C. Possesses an extremely low coefficient of thermal expansion, rendering it virtually immune to thermal shock.
Resistant to water, saline solutions, and highly concentrated acids (including HNO3, HCl, and H2SO4) at extreme temperatures. Only hydrofluoric and phosphoric acids can compromise its structural integrity.
High-purity raw material selection guarantees minimal leaching of trace elements (like Al, Fe, Na, Ca, and K), preventing sample cross-contamination during ultra-trace element analysis.
Large-diameter quartz tubes are not merely passive containers; they are active components in complex analytical systems.
In environmental testing and geological surveying, soil, rock, and mineral samples must be completely dissolved in concentrated acids. Quartz digestion tubes facilitate high-temperature acid digestion and dry ashing procedures. Their ability to withstand thermal gradients prevents cracking when cold acids are added to hot crucibles, ensuring operator safety and continuous laboratory workflows.
The semiconductor industry operates on parts-per-trillion (ppt) purity levels. When testing silicon wafers for metallic contaminants, the extraction chemistry must occur in an environment that contributes zero background ions. Large-diameter quartz tubes serve as clean combustion chambers and vapor-phase decomposition (VPD) vessels, protecting the delicate sample from ambient contaminants.
In petrochemical and chemical synthesis testing, gases generated during combustion or reaction must be captured and analyzed. Large-diameter quartz bubblers and gas-washing tubes allow for high-throughput gas flow through liquid absorbents. The optical clarity of fused silica enables real-time visual monitoring of colorimetric changes and precipitation reactions during gas absorption.
Fused quartz features superior optical transmittance across the ultraviolet (UV), visible, and infrared spectrums. Jacketed quartz photochemical reactors utilize large-diameter outer tubes to contain cooling fluids while allowing UV radiation to pass unimpeded to the reaction matrix. This setup is vital for advanced wastewater treatment testing and synthetic organic chemistry experiments.
Donghai County Leef Quartz Technology Co., Ltd. was founded in 2022 as a subsidiary of Lianyungang Southeast Quartz Products Co., Ltd., which was established in 2015. We are located in Donghai County, Lianyungang City, Jiangsu Province — known as "China Crystal Capital" and a national-level silicon material industry base.
Blessed with superior high-purity quartz ore resources, Donghai is a core production area of quartz raw materials in China. Relying on local high-grade quartz veins, we focus on the deep processing of quartz glass, and are a professional manufacturer integrating design, production, sales and foreign trade. With mature production technology, strict quality control and complete customized services, we have become a trusted supplier of quartz consumables for industries including photovoltaics, semiconductors, laboratories, chemical engineering and lighting.
Our manufacturing infrastructure is designed to translate raw material superiority into high-precision engineering components.
We operate standardized production workshops equipped with a full set of advanced equipment for quartz cutting, grinding and high-temperature forming, establishing a complete production line from quartz processing to finished product inspection.
Backed by a professional production management team with over 10 years of industry experience, we specialize in process optimization and customized manufacturing. We support rapid prototyping and mass production for various complex products, with an annual capacity of hundreds of thousands of pieces. We accept both small-batch custom orders and large-scale bulk orders with efficient delivery. By continuously upgrading production techniques, we improve product precision and stability, providing cost-effective quartz solutions for global customers.
All products are made of high-purity fused quartz raw materials, featuring excellent heat resistance (up to 1200°C), thermal shock resistance, corrosion resistance, high light transmittance and electrical insulation. They are widely used in photovoltaic manufacturing, semiconductor production, chemical laboratory analysis, chemical anti-corrosion treatment, lighting equipment and other general industrial and experimental applications. We also provide custom processing for special-shaped products according to customer drawings to meet personalized requirements.
Quartz beakers, condensers, distillers, lamp caps, and custom chemical analysis vessels designed for high-stress laboratory environments.
High-purity fused quartz tubes, quartz furnace tubes, quartz bell jars, quartz boats, quartz lamp holders, and quartz crucibles.
Quartz baskets, quartz tanks, quartz cups, exhaust tubes, condensation bottles, boat racks, various quartz boats, quartz rods, quartz plates, and quartz rings.
The commercial ecosystem for large-diameter quartz glass components is undergoing a rapid technological shift. With the global transition toward larger semiconductor wafers (moving aggressively toward 300mm and beyond) and high-throughput chemical testing, the demand for quartz tubes with diameters exceeding 200mm has surged. These dimensions introduce complex manufacturing challenges: maintaining strict ovality tolerances, uniform wall thickness, and zero bubble inclusion.
Automation in chemical laboratories is driving the development of quartz vessels with integrated optical sensors and custom side ports. These ports allow real-time pH tracking, temperature monitoring, and gas extraction without opening the digestion vessel. Donghai County Leef Quartz Technology is at the forefront of this trend, utilizing advanced CNC machining and plasma-welding technology to integrate side ports and flanges directly onto high-purity quartz bodies.
Furthermore, environmental sustainability regulations are forcing laboratories to reduce chemical waste. High-capacity quartz digestion tubes enable the processing of larger batches in a single cycle, drastically reducing acid consumption per sample. As synthetic quartz fabrication technology matures, we also anticipate a shift towards synthetic silica for ultra-trace testing applications, which provides an even higher purity level (detectable metallic impurities under 10 ppb).
Explore our comprehensive catalog of high-purity fused silica and quartz products, precision-engineered to meet stringent industrial standards.
Large Diameter Fused Quartz Tube with Side Ports
High Purity Fused Silica Absorption Tube (Quartz Bubbler Gas Washing Tube)
High-Purity Quartz Ring
Quartz Crucible with Side Arm & Flange Base
Jacketed Quartz Photochemical Reactor with Immersion Well
High Purity Quartz Box
High Purity Fused Silica Square Quartz Tube
High Purity Fused Silica Multi-Hole Quartz Box