PBSC’s cleanroom trolley pass-through hatch, also known as a floor mounted hatch, pass box, pass chamber, or pass through is engineered for the secure and efficient transfer of trolleys and large equipment between different cleanroom and controlled environments.

Being one of the best on the market, constructed from high-quality stainless steel, the hatch features smooth surfaces for easy cleaning, an interlock system for contamination control, and customisable options to fit your facility’s specific needs.

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Innovation. Design. Quality

PBSC’s pass-through hatches are engineered to minimize airflow between connected environments during material transfer, ensuring optimal contamination control. After use, the air within the hatch is “cleaned” to match either the filtered air level of the supply or the higher classification room, maintaining the highest standards of cleanliness and safety.

PBSC’s pass-through hatches are designed with a unique mechanical interlocking door system as standard, preventing both doors from being opened simultaneously. This interlock mechanism ensures the hatch “air” has time to recover before the other door can be opened, maintaining contamination control. The interlock is securely mounted between the two skins of the hatch to reduce the risk of tampering.

Additionally, PBSC’s pass-through hatches are available with an electro-mechanical system, offering timed interlocks for air purge, UV light cycles, and other custom requirements. This ensures comprehensive contamination control and adaptability to various operational needs.

Preventing direct airflow, minimising the risk of contamination and maintaining room pressure during the transfer process.

Interlocking mechanisms ensure that one door remains closed while the other is open, maintaining the integrity of each environment and facilitating the quick transfer of goods between different grades of rooms. This system upholds contamination control and operational efficiency.

Each hatch is available in various sizes and configurations to accommodate specific application requirements and user needs. Options include single or double door configurations, as well as right-angle designs, ensuring versatility and adaptability to diverse operational environments.

The refined design of PBSC’s hatches is robust, facilitating easy cleaning and maintenance. These hatches are ideal for passing products, equipment, or paperwork between sterile/clean areas and non-sterile/dirty areas, ensuring contamination control and operational efficiency.

Made from durable, smooth, non-porous materials, PBSC’s hatches offer a choice of finishes:

Polished Stainless Steel (standard offering): The hatch shell is manufactured from satin polished stainless steel with a double skin construction. All welds are ground off and polished to match the internal folded corners.

Phenolic Resin: The hatch shell is constructed of 16mm (5/8”) thick, matt white phenolic resin (High Pressure Laminate HPL) with no visible fixings. Internal junctions are finished with a neat silicone fillet, and all external edges are raised to form a smooth, easily cleaned unit.

Powder-Coated Steel: The outer shell is manufactured from powder-coated zintec, while the inner shell of the double skin construction is stainless steel. All welds are ground off and polished to match the internal folded corners.

These hatches are compatible with all types of walls and construction and are available with glass or solid doors to meet privacy requirements. Internal support shelves in either glass or stainless steel and stainless steel support frames are also available.

Following on-site installation, PBSC offers a Planned Preventative Maintenance and Servicing Plan with an extensive after-sales support service, including planned preventative maintenance programs, servicing, and spare parts.



  • Robust Mechanical Interlock as Standard
  • Stainless Steel or Phenolic Resin Construction
  • Minimal Visible Fixings
  • Robust PBSC Cast Stainless-Steel Hinge Assemblies
  • Toughened Glass Door Leaf’s
  • Easy Clean Surfaces
  • Frameless Glass Door Leaf Providing Maximum Visibility
  • Reduces Cross Contamination


Facilitating the quick transfer of goods between different grades of rooms

The Advantages of Ventilated Hatches are Many...

Used within many different cleanroom facilities lessening the risk of lower classification air entering the higher classification room.

* Cleanrooms: Commonly used in pharmaceutical, biotech, and semiconductor industries for transferring trolleys with materials, supplies, or equipment between rooms of different cleanliness grades.
* Laboratories: Facilitates the safe and efficient transfer of large items, samples, or equipment while maintaining sterility.
* Hospitals: Used to transfer sterile supplies and equipment on trolleys between operating rooms and sterile storage areas without compromising sterility.

Technical Specification

  • 10 mm Toughened Glass to EN 12150-1
  • Maximum Clear Width: Single Door = 1000mm
  • Maximum Clear Width: Double Door = Above 1000mm
  • Maximum Clear Height = 2100mm
  • Please contact PBSC for specific design options.
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  • PBSC reserve the right to introduce changes in performance, configuration and technology, dimension, weights and materials in the course of technical progress. Images may not be accurate
  • Some of the information/images/equipment described or shown may only be available at extra cost. Features & specifications will vary.


  • Ventilated Air Supply / Extract
  • Fire Resistant
  • Conveyor Systems to Client Specification
  • Internal Support Shelves, Glass or Stainless-Steel
  • UV Lights
  • Electro-Mechanical Interlock System
  • Powder Coated Finish
  • Single or Double Doors
  • Stainless-Steel Support Frame