1. Static Pass Box

Working Principle:

  • Utilizes integrated circuits, electromagnetic locks, control panels, and indicator lights.
  • Door interlock status indicated by lights, preventing concurrent door openings.
static pass box
Static Pass Box

Advantages:

Enhanced control and monitoring capabilities for a secure material transfer process.

See more: What is Static Pass Box

2. Dynamic Pass Box

Working Principle:

  • Functions as a self-cleaning pass box.
  • Air is drawn by a centrifugal fan, passes through a HEPA filter, and enters the working zone at a uniform velocity.
  • Maintains a clean working environment by equalizing pressure.
  • Air outlet surface can be equipped with a nozzle to increase air velocity for effective material surface dust removal.
  • Doors feature mechanical or electronic interlock systems, reducing door openings and direct human contact.
Dynamic pass box
Dynamic Pass Box

Advantages:

  • Automatic air cleaning mechanism ensures a consistently sterile working environment.
  • Reduced human contact for enhanced contamination control.

Understanding the working principles of these pass box types empowers cleanroom operators to choose the most suitable solution for their specific material transfer needs. Whether prioritizing simplicity, advanced control features, or automated self-cleaning, VCR provides insights into optimizing cleanroom workflows.

See more:

Working principle of dynamic pass box

How to selecting pass box