Quartz Bell Jar

Quartz Bell Jar Product Specification

Designed for high-temperature industrial processing and laboratory applications, quartz bell jars provide exceptional chemical purity and thermal stability in controlled environments.

Core Features

1. ‌Material Composition‌

• Fabricated from hi

• Quartz Bell Jar Product Specification

  Designed for high-te gh-purity fused quartz (SiO₂ ≥99.99%) for superior resistance to thermal shock and chemical corrosion17.

• Optically transparent structure enabling real-time process monitoring15.

2. ‌Structural Design‌

• Precision-engineered hemispherical or cylindrical shape with reinforced base flange36.

• Seamless integration with vacuum systems via standardized ground-glass joints48.

3. ‌Performance Parameters‌

   ‌Property‌	‌Specification‌
   ‌Temperature Range‌	-100°C to 1200°C (short-term 1450°C) 17
   ‌Vacuum Compatibility‌	≤10⁻⁶ Pa (high-vacuum applications) 46
   ‌Thermal Shock Resistance‌	ΔT ≥1000°C (water-to-air) 7
   ‌Light Transmission‌	>92% (UV to IR spectrum) 5

Technical Applications

• ‌Semiconductor Processing‌: CVD/PVD reaction chambers, wafer transfer isolation1.

• ‌Laboratory Research‌: Vacuum desiccators, controlled atmosphere experiments34.

• ‌Industrial Systems‌: Gas purification, metallurgical coating environments68.

Customization Options

• Diameter: 100mm–600mm (standard), larger sizes upon request1.

• Port configurations: Multiple ground joints or feedthrough ports for sensors/feed tubes48.

• Surface finishing: Fire-polished or acid-etched interior1.

⚠️ ‌Operational Notes‌

• Avoid direct contact with hydrofluoric acid/alkaline hydroxides above 300°C7.

• Requires quartz-compatible cleaning protocols (e.g., semiconductor-grade solvent baths)16.

Essential for processes demanding contamination control below 0.1 ppb metal impurity levels