Laboratory transfer cabinet / pass box
Controlled material transfer between two spaces without mixing the surrounding environments. For cleanroom, food industry and industrial applications where separation and hygiene are fundamental requirements.
Material handling without breaking zone boundaries
At first glance, a laboratory transfer cabinet or pass box may seem like a simple component: a two-sided transfer opening between rooms. In cleanroom, laboratory and pharmaceutical environments, however, this structure is one of the key tools for maintaining zone boundaries.
If it is poorly designed, the entire material-handling logic is compromised — and with it, hygiene and validation safety. A good transfer cabinet is therefore not just an accessory, but a controlled zone-transition device.
Its value is not defined by its form, but by whether it maintains the cleanliness logic during material movement. The key principle is that the two doors cannot be opened at the same time, preventing air and contamination transfer between the two spaces.
ProDoors.eu pass box systems are manufactured in industrial execution and custom sizes, based on the exact site conditions, wall thickness and technical requirements.
Safety depends on the operating logic
Two-door closed system
The transfer cabinet can be opened from both sides, but the operating logic is designed so that the two doors cannot be open at the same time.
Hygienic construction
Internal surfaces and junctions are designed to be easy to clean and to avoid contamination traps inside the cabinet.
Environment-specific execution
The size, door design and operating method are always adapted to the specific application, instead of being manufactured as a fixed standard-size product.
The design of the transfer cabinet depends on how it will be used
Stainless steel body
The structure is durable, easy to clean and suitable for long-term industrial use, with rounded internal junctions and hygienic surfaces.
Two-sided door system
The two-sided door system supports controlled material transfer while preventing the two spaces from opening directly into each other.
Cleanroom and industrial use
Suitable for laboratories, food industry, pharmaceutical production and industrial environments, adapted to the exact hygiene and operating requirements.
Typical technical parameters
The following data are indicative. The final design is always defined according to the exact environment, operating logic and installation conditions.
| Design | Two-sided transfer cabinet with controlled door operation |
| Application environment | Cleanroom, laboratory, food industry, pharmaceutical or industrial operating environment |
| Material use | Stainless steel construction with hygienic, easy-to-clean surface finish |
| Operation | Only one side can be opened at a time to prevent direct connection between the two spaces |
| Size | Custom-manufactured to match the wall opening and the size of the transferred items |
| Options | Custom door design, glazing, special operation, mechanical or electric interlock logic |
| Manufacturing | Custom design based on the site, technology, hygiene requirements and industrial load |
Where is a pass box transfer cabinet useful?
The transfer cabinet provides a stable solution in spaces where material movement must be controlled, but full door opening or direct room connection would create hygiene or validation risks.
For controlled transfer of samples, tools, documents and smaller technical components.
Between spaces where cleanliness level, ventilation or workflow requires separate zone control.
As a hygienic, stainless steel, easy-to-disinfect transfer point for production and inspection processes.
Between production, service or quality-control zones where fast, organised and safe transfer is important.
Not sure what configuration your space needs?
Send us the opening size, wall thickness and a short description of the environment. We help define the right pass box design for safe, hygienic and controlled operation.