Custom Size Quartz Furnace Tube for Laboratory & Industrial Use

Material: High-purity synthetic fused silica (SiO₂ ≥99.99%), low hydroxyl (OH) content (<50ppm)

1. Extreme Temperature Resistance

Boasts a continuous service temperature of up to 1200°C and a short-term maximum of 1400°C, with outstanding thermal shock resistance (-60°C to 1000°C rapid temperature change without cracking), perfect for high-temperature thermal processing.

2. Ultra-High Chemical Inertness

Nearly inert to most acids, alkalis, and organic reagents (excluding hydrofluoric acid and hot concentrated phosphoric acid), avoiding chemical reactions with processed materials and ensuring zero contamination.

3. High Purity & Low Impurity

Ultra-low metal impurity content (ppb level) eliminates ion migration and pollution risks, complying with the stringent purity standards of semiconductor, photovoltaic, and laboratory high-precision processes.

4. Precision Dimensional Control

Strict tolerance control (±0.05mm for inner/outer diameter, ±0.1mm for length) ensures seamless matching with tube furnaces, rotary furnaces, and other heating equipment; smooth inner wall reduces gas flow resistance.

5. Long Service Life

Excellent mechanical strength at high temperatures, resistant to deformation and aging; anti-crystallization treatment available for long-term use in high-temperature and humid environments.

• Semiconductor Industry: Silicon wafer diffusion, oxidation, annealing, and ion implantation in tube furnaces.
• Photovoltaic Industry: Solar cell silicon wafer sintering, doping, and coating processes.
• Laboratory & Research: High-temperature sample calcination, gas phase synthesis, and material annealing in tube furnaces.
• Industrial Heat Treatment: Annealing and sintering of optical glass, ceramic components, and metal parts under vacuum/inert gas.

• 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.

• Quality ssurance: 100% inspection for dimensional accuracy, bubble/impurity control, and thermal performance; provide material certification and test reports.
• Packaging: Shockproof foam + hard carton + wooden case (for long/large tubes) to prevent breakage during transportation.