What information do you need to engineer a custom quartz tube or component?

Please send outer and inner diameter (or wall thickness), length, required tolerances, end configuration (open, closed, flanged, ground joint or welded fittings), material grade (transparent or opaque fused quartz), working temperature and atmosphere, annual or batch quantity, and a drawing in PDF, DWG or STEP format. Complete data lets our engineers confirm manufacturability and lead time in a single review.

What is the maximum operating temperature of fused quartz?

Transparent fused quartz typically supports continuous service around 1,100 °C and short exposures up to roughly 1,250 °C, with a softening point near 1,683 °C. Real limits depend on grade, load, atmosphere and cycle time. Above about 1,100 °C, surface contamination such as alkali residue from skin contact accelerates devitrification, so quartzware should be cleaned and handled with clean gloves before firing.

How does Southeast Quartz verify quality before shipment?

Products undergo helium mass-spectrometry leak detection, pressure resistance testing and purity testing before leaving the factory, together with dimensional inspection against the customer drawing, to ensure stable performance with no impurities and no leakage.

Can you manufacture oversized quartz tubes and non-standard quartz shapes?

Yes. Our workshop combines flame hot-working with CNC cold machining, so we produce oversized fused quartz tubes, bell jars, slotted quartz boats, flanged reactors, irregular shaped quartz sheets and fully customized quartz instruments according to customer equipment parameters.

Where is Southeast Quartz located and which markets do you export to?

Our factory is at No. 1 Qingsheng Rd., Qinghu Industrial Park, Donghai County, Jiangsu, China, within China's best-known crystal and quartz industrial cluster. Besides customers throughout China, we export to Europe, the Americas, Southeast Asia and the Middle East.

High-Quality Custom Size Quartz Furnace Tube for Laboratory & Industrial Use - High-Purity from China Suppliers & Factory Supplier, Products

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High-Quality Custom Size Quartz Furnace Tube for Laboratory & Industrial Use - High-Purity from China Suppliers & Factory Supplier, Products

Quartz furnace tubes are essential components manufactured from high-purity quartz sand, known for their exceptional resistance to high temperatures exceeding 1200℃. These tubes demonstrate excellent thermal stability and strong chemical inertness, making them ideal for high-temperature heat treatments across various industries, including semiconductors, photovoltaics, and advanced materials. As vital parts of vacuum furnaces and diffusion furnaces, quartz furnace tubes play a crucial role in thermal processing equipment, In high-temperature applications, these quartz furnace tubes, crafted from high-purity silicon dioxide (SiO₂), serve as the reaction chamber in diffusion and oxidation furnaces, providing an optimal controlled environment for wafer processing at elevated temperatures, Our quartz furnace tubes are made from high-purity synthetic fused silica (SiO₂ ≥99.99%) with low hydroxyl (OH) content (

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Product Description

Product Specifications

Shapes

Straight tube, U-shaped tube, spiral tube, and customized special structures.

Sizes

Outer diameter 10mm–500mm, wall thickness 1mm–20mm, length 100mm–6000mm (per customer drawings).

Features

Flange connection, closed end, quartz flange, and vacuum-sealed design available.

Surface Treatment

Polished (inner/outer), frosted, or acid-etched surface.

Frequently Asked Questions

Q What shapes are available for the quartz tubes?

We offer straight tubes, U-shaped tubes, spiral tubes, and fully customized special structures tailored to your specific application requirements.

Q What size range do your quartz tubes cover?

Our quartz tubes are available with an outer diameter ranging from 10mm to 500mm, wall thickness from 1mm to 20mm, and lengths from 100mm to 6000mm. Custom dimensions are produced according to customer drawings.

Q Can the quartz tubes be made with vacuum-sealed or flanged ends?

Yes. We support flange connections, closed ends, quartz flanges, and vacuum-sealed designs to meet a wide variety of industrial and laboratory needs.

Q What surface treatment options are available?

We provide polished surfaces (both inner and outer), frosted finishes, and acid-etched surfaces, depending on your optical, chemical, or mechanical requirements.

Q Can I order quartz tubes based on my own design drawings?

Absolutely. We accept custom orders based on customer-supplied drawings and specifications, including unique shapes, dimensions, and end configurations.

Q What is the maximum length of a single quartz tube you can manufacture?

A single quartz tube can be manufactured up to 6000mm (6 meters) in length. For longer requirements, please contact us to discuss feasibility and joining options.

High-Quality Custom Size Quartz Furnace Tube for Laboratory & Industrial Use - High-Purity from China Suppliers & Factory Supplier, Products

Product Description

Product Specifications

Frequently Asked Questions

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