Personnel and Material Decontamination Equipment

Three-Door Cleanroom Pass Box

A single shared transfer chamber with three doors on different sides and one-door-at-a-time interlocking.

One Shared Chamber
Three Directional Doors
Three-Way Interlock Logic
Flush Transfer Interior

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Product Introduction

This three-door pass box connects three adjacent cleanroom directions through one common stainless chamber. Each door has its own gasket and status indication, but the interlock allows only one door to be released at a time. The arrangement can serve an L- or T-shaped room layout without constructing multiple separate transfer cabinets.

Key Features

Three doors access one common material chamber from different directions.

Interlock logic prevents any second door from opening while one is open.

Door-status lamps help operators identify the permitted transfer side.

A central flush floor accommodates trays without cross-room ledges.

The double-wall body keeps interlock components outside the product space.

Customer Product Concerns

A three-way transfer point needs simple directional access without ever creating an open path between two rooms.

Multiple adjacent rooms need one common transfer point.One central chamber offers three directional doors instead of several separate boxes.

Two users request access from different sides at once.Three-way interlocking permits only one door to release.

Operators lose track of which side is available.Individual door-status indicators show lock and ready states.

A corner layout makes standard straight-through boxes inefficient.Door orientation can be arranged around the actual T- or L-shaped partition layout.

Typical Applications

Multi-room pharmaceutical suitesLaboratory hubsMedical-device production cellsElectronics cleanroom islands

Technical Parameters

Typical construction ranges for a three-door shared-chamber pass box are listed below.

Core Material	Double-wall SUS 304 shared chamber with three glazed doors, electronic interlock and silicone gaskets
Panel Thickness	70-100 mm multi-side double-wall cabinet construction
Effective Width	500-1000 mm clear shared-chamber width
Maximum Length	Up to 1200 mm chamber depth between opposite doors
Steel Facing Thickness	1.0-1.5 mm stainless-steel facing
Core Density	35-40 kg/m³ polyurethane insulation in the multi-wall service zone
Thermal Conductivity	0.022-0.028 W/(m·K) for polyurethane cabinet infill
Surface Finish	Brushed SUS 304 with smooth radiused corners and flush transfer floor
Joint Type	Sealed double-wall body with three electronically interlocked compression-gasketed doors
Customization	Available based on the intended application and operating environment.

Available Options

T-shaped or L-shaped door arrangementGlazed or opaque door panelsMechanical key overrideLoad-presence indication

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