Introduction

Large diameter quartz tubes are widely used in semiconductor furnaces, solar PV equipment, laboratory furnaces, and high-temperature industrial systems due to their excellent thermal stability, chemical resistance, and low contamination characteristics.

FGQuartz manufactures custom fused quartz tubes with diameters from 5 mm to 1000 mm, supporting different wall thicknesses, lengths, surface finishes, and machining requirements according to customer drawings.

Large quartz tubes are commonly used as furnace chambers, process tubes, reaction tubes, and protective tubes where high temperature performance and dimensional stability are required.

 

Custom Large Diameter Quartz Tube Sizes

FGQuartz can manufacture quartz tubes with customized dimensions:

  • Diameter range: 5 mm – 1000 mm
  • Custom wall thickness
  • Custom length
  • Transparent or flame-polished surface
  • Machined openings and connections

Large diameter quartz tubes can be produced according to specific equipment designs, including special dimensions that are not available as standard products.

Key specifications include:

  • Outer diameter (OD)
  • Inner diameter (ID)
  • Wall thickness
  • Length
  • Surface quality
  • Thermal requirements

Applications of Large Diameter Quartz Tubes

Semiconductor Furnace Tubes

Large quartz tubes are essential components in semiconductor thermal processing equipment.

Typical applications include:

  • Diffusion furnace tubes
  • Oxidation furnace tubes
  • LPCVD and PECVD process tubes
  • Wafer processing equipment

Quartz provides excellent thermal shock resistance and chemical stability, helping maintain a clean and stable process environment.

Solar Photovoltaic Equipment

Quartz tubes are widely used in solar manufacturing equipment where high-temperature processing and contamination control are required.

Applications include:

  • Silicon wafer processing
  • Solar cell thermal treatment
  • TOPCon and HJT production equipment

Large diameter quartz tubes help maintain stable temperature conditions during high-temperature processes.

Laboratory and Industrial Heating Systems

Custom quartz tubes are also used in:

  • Tube furnaces
  • Vacuum heating systems
  • Chemical reaction equipment
  • Material research systems

Different tube sizes and configurations allow integration into various heating systems.

Manufacturing Process of Large Diameter Quartz Tubes

Producing large quartz tubes requires precise temperature control and experienced processing technology.

Quartz Tube Forming

Large diameter tubes are formed under controlled high-temperature conditions.

The manufacturing process focuses on:

  • Diameter accuracy
  • Wall thickness uniformity
  • Low internal stress
  • Stable tube geometry

Precision Machining

Quartz tubes can be further processed according to customer requirements.

Available machining includes:

  • Cutting
  • Grinding
  • Drilling
  • Polishing
  • Custom openings

Diamond tools are used for precision quartz machining due to the hardness and brittleness of fused quartz.

Flame Polishing and Quartz Welding

For customized quartz components, additional processing can be provided:

  • Flame polishing
  • Side tube welding
  • Port welding
  • Tube modification

These processes allow quartz tubes to be integrated into complex equipment designs.

Why Choose Fused Quartz Tubes?

High Temperature Resistance

Quartz tubes maintain stable performance in high-temperature environments and repeated heating cycles.

Chemical Stability

Quartz has excellent resistance to many chemicals and process gases, making it suitable for demanding industrial applications.

Low Contamination

The stable properties of fused quartz make it suitable for semiconductor and photovoltaic processes requiring clean environments.

Custom Quartz Tube Manufacturing Capability

FGQuartz provides complete quartz processing solutions, including:

  • Quartz tube manufacturing
  • CNC machining
  • Flame processing
  • Polishing
  • Custom fabrication

Our quartz tubes are manufactured based on customer drawings, equipment requirements, and application conditions.

Whether for semiconductor furnaces, solar equipment, or laboratory systems, FGQuartz provides customized quartz tube solutions for global customers.

How to Select a Large Diameter Quartz Tube?

When selecting a quartz tube, consider:

Tube Size

Confirm:

  • Outer diameter
  • Inner diameter
  • Wall thickness
  • Length

Operating Conditions

Consider:

  • Working temperature
  • Heating cycle
  • Chemical environment
  • Vacuum requirements

Processing Requirements

Different applications may require:

  • Polished surfaces
  • Welded connections
  • Precision machining
  • Special dimensions

Frequently Asked Questions

What diameter quartz tubes can be manufactured?

FGQuartz can manufacture custom quartz tubes with diameters from 5 mm to 1000 mm according to customer requirements.

Can large diameter quartz tubes be customized?

Yes. Quartz tubes can be customized in diameter, wall thickness, length, surface finish, and additional machining features.

Are quartz tubes suitable for semiconductor furnaces?

Yes. Quartz tubes are widely used in semiconductor furnaces because of their high temperature resistance, chemical stability, and low contamination characteristics.

Conclusion

Large diameter quartz tubes are critical components in semiconductor, photovoltaic, laboratory, and industrial high-temperature applications.

FGQuartz provides customized fused quartz tube solutions from 5 mm to 1000 mm diameter, with capabilities including forming, machining, polishing, and quartz welding.

By combining quartz manufacturing experience with custom processing capability, FGQuartz helps customers develop reliable quartz components for demanding applications.