Direct Factory Catalog High-Purity Fused Quartz Tubes & Heating Elements
Manufactured using premium natural quartz crystal and high-purity synthetic silica. Our quartz tubes feature exceptional thermal shock resistance, near-zero thermal expansion, and optimal optical transmission across UV, visible, and infrared wavelengths.
Customizable 
10mm Diameter Quartz Transparent Tube with Tungsten Filament
Material: High-Purity Fused Quartz (SiO₂ ≥99.99%) Element: Tungsten (Round & Square Configurations)
$1.00 - $5.00 MOQ: 10 pieces
Infrared 
10mm Diameter Ruby-Red Quartz U-Shaped Heating Tube
Type: Ruby Doped Quartz (Anti-Glare / Medium Wave IR) Geometry: Precision CNC Bent U-Shape
$10.00 - $30.00 MOQ: 10 pieces
Directional Heat 
10mm Quartz Tube with Single-Sided White Ceramic Reflector
Coating: High-Reflectance Ceramic Layer (≥90% IR reflection) Working Temp: Resists up to 1000°C continuous
$1.00 - $5.00 MOQ: 10 pieces
Short Wave IR 
Short Wave Quartz Infrared Lamps with Fabricated Clear Pipe
Service: Bending, Optical Polishing & Cleanroom Welding Application: High-Speed Industrial Curing & Drying
$5.00 - $10.00 MOQ: 10 pieces
High Power 
1000W U-Shaped Quartz Tube Electric Heating Element
Power Rating: 1000W (Voltage & Wattage fully custom) Processing: Precision Flame Formed U-Bend
$5.00 - $20.00 MOQ: 10 pieces
Domed End 
18mm × 370mm Quartz Heating Tube with Round Closed End
End Profile: Precision Fire-Sealed Hemispherical End Internal: Tungsten Coil Heating Filament Assembly
$1.00 - $5.00 MOQ: 10 pieces
Gold Reflector 
1000W Quartz Tube Gold-Plated Directional Heating Element
Reflector: High-Purity Gold Coating (≥95% IR Reflectance) Application: Cleanrooms, Medical & Laboratory Heating
$10.00 - $30.00 MOQ: 10 pieces
Technical Capabilities & Material Specifications
Donghai County Nivra Quartz Products Co., Ltd. processes premium raw quartz mined and refined in Jiangsu. Our specialized tubing meets stringent semiconductor and photothermal tolerance guidelines:
| Property Parameter | Continuous Standard | High Purity Synthetic Grade |
| SiO₂ Purity | ≥ 99.99% | ≥ 99.999% |
| Softening Point | 1683 °C | 1730 °C |
| Continuous Working Temperature | 1100 °C | 1150 °C |
| Thermal Expansion Coefficient (0–300°C) | 5.5 × 10⁻⁷ cm/cm·°C | 5.0 × 10⁻⁷ cm/cm·°C |
| Available Outside Diameters | OD 1.5mm to OD 450mm | Customized on demand |
| Surface Processing | Fire polishing, mechanical optical polishing, frosted / sandblasted finish, slot cutting, hole drilling, flange joining |
Request Custom Quartz Tubing Specifications
Provide your technical drawings, OD/ID tolerances, and order volume for engineering analysis and quotation.
