Cleanroom Static Pass Box
Cleanroom Static Pass Box: The Essential Pressure-Seal Gateway
In controlled environments where material transfer occurs between rooms of the same ISO class or from a cleaner zone to a non-sterile zone, the Static Pass Box serves as the primary structural barrier. Metrolabs provides high-accuracy Static Pass Boxes designed to facilitate the movement of small items without breaching the facility’s pressure gradient.
By eliminating the need for personnel to move between rooms, our pass boxes significantly reduce the risk of cross-contamination and maintain the integrity of your Cleanroom Partition Systems.
Engineered for Hermetic Integrity
A Metrolabs Static Pass Box is more than a simple hatch; it is a high-performance containment unit built with a “Zero-Ledge” philosophy to ensure no contaminants are trapped within the structure.
Mechanical or Electromagnetic Interlocking
The most critical feature of a pass box is the interlocking system, which ensures that both doors can never be opened simultaneously. Pressure Protection: This prevents the sudden loss of room pressure and the "rush" of unconditioned air into the sterile zone. Protocol Discipline: High-visibility LED indicators (Red/Green) provide clear communication to staff on either side of the wall.
High-Integrity Sealing
Medical-Grade Gaskets: Doors are fitted with specialized silicone gaskets to ensure an airtight seal against the frame. Double-Glazed Viewing Panels: Toughened safety glass windows are mounted flush with the door frame, allowing for visual inspection while maintaining a smooth, hygienic surface.
Aseptic Interior Geometry
To support your facility's cleaning protocols, the internal chamber is designed for 100% "wipe-down" accessibility. Coved Corners: Every internal junction is radiused to eliminate sharp 90-degree angles where dust or microbes could settle. Stainless Steel Excellence: Fabricated from heavy-gauge SS 304 or SS 316L, providing a non-porous, non-shedding surface that resists aggressive disinfectants.
Technical Specifications
Specialized Configurations
Metrolabs customizes pass boxes to meet the specific architectural and functional needs of your facility:
Wall-Flush Mounting: Designed to be installed level with our Modular Cleanroom Panels, ensuring a seamless “Zero-Ledge” exterior.
Floor-Mounted Pass Boxes: Larger units designed for the transfer of heavy equipment or trolleys that do not require active filtration.
Lead-Lined Pass Boxes: Specialized versions for radiopharmaceutical or X-ray labs that require radiation shielding.
Chemical Resistance: Optional polypropylene interiors for the transfer of highly corrosive reagents.
The Metrolabs Advantage
At Metrolabs, we focus on high-accuracy fabrication. Our static pass boxes are built to withstand the high-frequency use of busy pharmaceutical and research environments.
UV-C Safety Logic: Our systems include a safety “cut-off” that automatically deactivates the UV-C lamp if a door is opened, protecting personnel from exposure.
Custom Sizing: Whether you are transferring small petri dishes or large bulk containers, we manufacture chambers to your exact dimensional requirements.
Aesthetic Integration: Powder-coated options are available to match your cleanroom’s color scheme, maintaining a professional and uniform appearance.
Technical Insight: While a Static Pass Box does not have active filtration, it relies on the pressure differential between rooms. To ensure the highest level of safety, we recommend placing the box at a height that supports ergonomic “straight-line” transfers, reducing the time the doors remain open and further protecting the room’s atmosphere.