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.

Wholesale Custom Quartz Furnace Tube for Laboratory & Industrial Use - High-Purity Suppliers & Factory in China Manufacturer, Manufacturers

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Wholesale Custom Quartz Furnace Tube for Laboratory & Industrial Use - High-Purity Suppliers & Factory in China Manufacturer, Manufacturers

Quartz furnace tubes, produced by leading suppliers in China, are engineered from high-purity quartz sand, ensuring exceptional resistance to temperatures exceeding 1200℃. These tubes boast outstanding thermal stability and chemical inertness, making them vital components in high-temperature heat treatment processes across industries such as semiconductors, photovoltaics, and advanced materials. As essential elements of vacuum and diffusion furnaces, they facilitate efficient thermal processing, Our quartz furnace tubes, crafted from high-purity synthetic fused silica (SiO₂ ≥ 99.99%) with a low hydroxyl (OH) content of less than 50ppm, provide a controlled environment ideal for wafer processing in oxidation and diffusion furnaces. This product is an indispensable choice for manufacturers seeking reliable and high-performance equipment, sourced directly from a reputable factory in China

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Product Description

Product Specifications

All quartz glass tubes are precision-manufactured to customer specifications, supporting a wide range of shapes, dimensions, surface treatments, and connection features.

Shapes	Straight Tube U-Shaped Tube Spiral Tube Customized Special Structures
Sizes	OD: 10mm – 500mm Wall: 1mm – 20mm Length: 100mm – 6000mm Per customer drawings
Features	Flange Connection Closed End Quartz Flange Vacuum-Sealed Design
Surface Treatment	Polished (Inner / Outer) Frosted Acid-Etched

Frequently Asked Questions

Q What shapes are available for quartz glass tubes?

Quartz glass tubes are available in straight tube, U-shaped tube, spiral tube, and fully customized special structures to meet a wide variety of industrial and laboratory requirements.

Q What size range do your quartz tubes cover?

The tubes are available with an outer diameter from 10mm to 500mm, wall thickness from 1mm to 20mm, and lengths from 100mm to 6000mm. All dimensions can be produced according to customer drawings and specifications.

Q What special features or connection options are offered?

Several design options are available, including flange connection, closed end, quartz flange, and vacuum-sealed design. These features make the tubes suitable for high-vacuum systems, sealed environments, and precision laboratory setups.

Q What surface treatment options are available for quartz tubes?

Surface treatments include polished (both inner and outer surface), frosted, and acid-etched finishes. Each treatment is selected based on the application's optical, chemical, or mechanical requirements.

Q Can quartz tubes be manufactured to custom drawings or specifications?

Yes. All quartz glass tubes can be customized based on customer-provided drawings or technical specifications, covering shape, dimensions, surface treatment, and connection design.

Q Are vacuum-sealed quartz tubes suitable for high-temperature applications?

Yes. Quartz glass has excellent thermal resistance and can withstand high temperatures, making vacuum-sealed quartz tubes ideal for use in furnaces, semiconductor processing, chemical reactors, and other demanding high-temperature environments.

Wholesale Custom Quartz Furnace Tube for Laboratory & Industrial Use - High-Purity Suppliers & Factory in China Manufacturer, Manufacturers

Product Description

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