Glovebox Antechambers for Controlled Material Transfer

A glovebox transfer chamber is essential for the safe transfer of materials in controlled inert gas environments. It allows products and tools to be loaded into and unloaded from the glovebox without compromising the atmosphere inside. For decades, MBRAUN has been developing high-performance transfer chute systems for a wide range of applications—from research to production. Whether it’s a vacuum antechamber, round antechamber, rectangular antechamber, heated transfer antechamber, or purge antechamber: Each solution is specifically tailored to process requirements and material properties.

Overview of Antechambers

As standard, we recommend two cylindrical antechambers for our glovebox systems, which enable efficient material transfer:

Mini Antechamber (small vacuum antechamber)

For fast and efficient processes with small parts: The smaller antechamber volume reduces gas consumption and significantly shortens the antechamber cycle. This model is equipped with a sliding tray

Standard antechamber (large vacuum antechamber)

For larger materials or higher volumes, equipped with a sliding tray for convenient handling

Depending on the application and material, various types of antechambers are available:

  • Vacuum Antechamber
    Evacuation and filling with inert gas to minimize O₂ and moisture
  • Round Antechamber
    Compact design, ideal for smaller materials and limited space
  • Rectangular Antechamber
    Larger volume for bulky components or higher throughput
  • Heated Antechamber
    Assists in drying materials before they are fed into the system
  • Purge Antechamber
    Alternative to the vacuum antechamber for materials not suitable for vacuum processing

The size and shape of the antechamber are determined by your requirements.

The antechamber cycle – safe and efficient

A typical antechamber process using a vacuum chamber proceeds as follows:

  1. Loading the antechamber
    Material is placed into the antechamber and the outer door is closed
  2. Evacuation
    The antechamber is evacuated using a vacuum pump
  3. Filling with Inert Gas
    The antechamber is filled with inert gas (e.g., helium, argon, or nitrogen)
  4. Repeating the Cycle
    The evacuation and filling process is usually repeated several times (typically 3 cycles)
  5. Pressure equalization
    The antechamber is brought to the atmospheric pressure level of the glovebox
  6. Opening the antechamber from inside the box
    The inner door of the antechamber can be safely opened, and the material can be introduced

For sensitive materials, the process is carried out without a vacuum, using targeted inert gas purging in a purge airlock.

Automation and Safety

Modern glovebox antechambers can be fully automated. The antechamber cycle starts at the push of a button, while sensors and control systems monitor the entire process. Additional safety features, such as door locks, prevent operating errors. Automatic antechamber doors also enable seamless integration into automated processes or the use of robotics.