High purity transparent high transmittance quartz tube with a large OD of 200-5000mm is a high-performance quartz glass product made of high-purity silicon dioxide (SiO ₂ ≥ 99.99%), which has excellent transparency, high temperature resistance, corrosion resistance, and thermal stability. This product has a wide range of ODs (200mm to 5000mm) and is suitable for various high-end industrial, scientific research, and optical applications.  

Frequently Asked Questions (FAQ)

Q: How does your company manufacture quartz tubes with outer diameters exceeding 200 mm, particularly those in the meter range (such as 3,000 mm)?

The conventional continuous fusion method faces technical limitations when directly drawing large-diameter tubes. We employ an advanced secondary forming and tube-expansion process, supported by multiple dedicated production lines. This allows us to expand the base tubes to a maximum outer diameter of 5,000 mm without altering the inherent excellent physical and chemical properties of quartz, while ensuring uniform wall thickness and precise geometric dimensions.

Q: How do you ensure the light transmittance and material purity of quartz tubes with such large outer diameters?

We strictly select high-purity quartz raw materials (such as Unimin high-purity sand), ensuring the SiO₂ content of the finished product remains stable between 99.95% and 99.99%. Through specialized forming and processing techniques, our products maintain excellent transmittance in both the ultraviolet and visible light spectra (typically >90%) and feature extremely low levels of metallic impurities, thereby preventing contamination of the manufacturing environment.

Q: In addition to standard round tubes, can you provide custom shaping or custom-made components?

Yes. We offer one-stop services ranging from tube forming to value-added processing, including cutting, end sealing, flame-shrinking, sandblasting, and flanging of large-diameter tubes, as well as welding and machining of complex components such as quartz flanges, tees, and elbows. We support non-standard customization based on customer drawings.

Core advantages

High purity material: SiO ₂ content ≥ 99.99%, extremely low impurity content, ensuring stable optical performance.  

Ultra high transmittance: The transmittance exceeds 90% in the ultraviolet (UV), visible light (VIS), and infrared (IR) bands, making it suitable for precision optical systems.  

High temperature resistance: It can work at 1200 ℃ for a long time and withstand high temperatures of 1700 ℃ for a short period of time, suitable for extreme environments.  

Strong chemical stability: acid and alkali resistance (except hydrofluoric acid and hot phosphoric acid), strong corrosion resistance.  

Low thermal expansion coefficient: Excellent thermal stability, not easily ruptured due to sudden temperature changes.  

Large size customization: Supports production with ODs ranging from 200mm to 5000mm to meet special needs.  

Application areas

1. Semiconductor and Photovoltaic Industry

-Application: Used for furnace tubes, diffusion tubes, epitaxial tubes, etc. in monocrystalline silicon and polycrystalline silicon growth furnaces.  

-Problem solving: High temperature resistance, thermal shock resistance, ensuring stable growth environment for semiconductor materials, and reducing pollution.  

2. Optics and laser technology

-Applications: laser windows, optical lens protective covers, UV lithography equipment, etc.  

-Problem solving: High transmittance ensures optical path transmission efficiency and reduces energy loss.  

3. Chemical and pharmaceutical industries

-Applications: high-purity reaction vessels, corrosive gas pipelines, distillation equipment, etc.  

-Solution: Resistant to acid and alkali corrosion, avoiding material contamination, and improving production safety.  

4. New energy and electric light sources

-Applications: LED packaging, solar cell manufacturing, high-pressure mercury lamps, xenon lamp tubes, etc.  

-Problem solving: High temperature resistance, UV aging resistance, and extended equipment lifespan.  

5. Scientific research and special equipment

-Applications: Vacuum systems, astronomical telescope barrels, spacecraft observation windows, etc.  

-Problem solving: Ultra high purity ensures experimental accuracy, low thermal expansion adapts to extreme environments.  

Customized service

We provide personalized customization services to meet the needs of different industries:

1. Size customization

-OD range: 200mm~5000mm

-Wall thickness: adjusted according to demand (usually 1mm~50mm)

-Length: Supports ultra long pipes (up to 6000mm in length)

2. Special treatment

-Coating: anti reflective film, reflective film, high temperature resistant protective film

-Surface polishing: high-precision optical grade polishing to reduce light scattering

-Irregular processing: customizable flange interfaces, bent pipes, tapered pipes, etc

3. Material optimization

-Ultra high purity quartz tube (SiO ₂ ≥ 99.99%)

-Low hydroxyl quartz tube (OH content<1ppm) to reduce infrared absorption

-UV resistant quartz tube, suitable for strong UV environments

Why choose our quartz tube?  

1. Large scale production capacity: One of the few domestic manufacturers capable of producing 5000mm ultra large diameter quartz tubes to meet special needs.  

2. Strict quality control: Each batch of products undergoes spectral analysis and temperature resistance testing to ensure stable performance.  

3. Quick response: Provide one-stop service for technical consultation, sample testing, and customized solutions.  

For more product information or to obtain samples, please contact us.

Luverre Quartz is a manufacturer specializing in quartz tubes and other quartz items.We have over 18 years experience with the production of quartz tubes, we will be your reliable partner on quartz tubes and other quartz items.

Luverre Quartz can manufacture customized quartz tubes in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz tubes, opaque quartz tubes, milky white quartz tubes, red quartz tubes, and so on.