Alcatel 2C7-1005-000 Teflon Bell Jar Holder Ring

The Alcatel 2C7‑1005‑000 (also referenced as PC7‑1005‑000 and part number 146114) is a precision‑engineered Teflon (PTFE) holder ring used in vacuum chamber assemblies, commonly known as bell jars. This ring provides a reliable sealing interface between the bell jar and its base plate, ensuring vacuum integrity and electrical insulation in high‑vacuum systems. It is widely used in semiconductor processing, thin‑film deposition, and research vacuum equipment.

Overview

The bell jar holder ring is a critical component in vacuum systems that require a transparent or metal enclosure for processes such as sputtering, evaporation, or plasma etching. The Teflon material offers excellent chemical resistance, low outgassing, and thermal stability, making it suitable for ultra‑high vacuum (UHV) applications. The ring is designed to accommodate the specific dimensions of Alcatel bell jars, providing a secure and repeatable seal. Its non‑stick surface prevents adhesion of process residues, facilitating easy cleaning and maintenance.

Key Features

• Manufactured from high‑purity Teflon (PTFE) for low outgassing

• Precision machined to exact tolerances for a perfect fit

• Excellent chemical resistance to acids, solvents, and process gases

• Wide operating temperature range: -200°C to +260°C

• Non‑stick surface for easy cleaning and reduced contamination

• Provides electrical insulation between bell jar and base

• Compatible with standard Alcatel bell jar models

Technical Specifications

• Material: Virgin PTFE (Teflon), FDA‑compliant

• Outer Diameter: Specific to bell jar model (check compatibility)

• Inner Diameter: Matches bell jar opening

• Thickness: 5‑10 mm (depending on model)

• Temperature Range: -200°C to +260°C

• Pressure Range: Vacuum to 10⁻⁹ mbar (when used with proper sealing)

• Outgassing Rate: < 5×10⁻⁵ mbar L/s per cm² (measured)

• Hardness: Shore D 55‑60

Applications

This ring is used in bell jar vacuum systems for semiconductor fabrication (sputtering, evaporation, CVD), optical coating, and surface science research. It is also employed in electron microscopy sample preparation and vacuum annealing systems.

Installation and Maintenance

Install the ring between the bell jar and the base plate, ensuring it is centered and free of debris. Tighten clamping mechanisms evenly to achieve uniform compression. Regular maintenance includes cleaning the ring with isopropanol or mild detergent, and inspecting for cracks or deformation. Replace the ring if signs of wear or chemical attack are observed.

Compatibility

This ring is compatible with Alcatel bell jar systems and many other standard vacuum chambers with matching dimensions. Always verify dimensions with the supplier before ordering.

Conclusion

The Alcatel 2C7‑1005‑000 Teflon bell jar holder ring offers reliable sealing, chemical resistance, and thermal stability, making it an essential component for maintaining vacuum integrity in demanding process environments.