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Cleanroom Doors, Windows and Interlock Systems
Two-Door Cleanroom Interlock System
A complete interlock package for a two-door personnel or material airlock, allowing only the permitted door to release while the opposite opening remains secured.
- Dedicated Two-Door Logic
- Two Lock and Contact Channels
- Request/Wait Indication
- Emergency Release Input
Product Introduction
The two-door system packages a compact controller with two door-position sensors, two electric-lock interfaces and paired request/status stations. In normal operation, opening one door inhibits release of the opposite door until the first door closes and any selected purge delay expires. The limited door count makes commissioning straightforward and suits common entry vestibules, gowning airlocks and pass-through rooms where the interlock relationship is one-to-one.
Key Features
Request and wait indicators show occupants when the opposite door is in use.
A resettable delay can hold both doors closed while filtered air restores the vestibule condition.
Emergency release and optional fire-alarm input override normal sequencing according to the selected safety design.
Customer Product Concerns
A simple two-door airlock still requires reliable state feedback, clear occupant indication and a defined response to emergency release or power loss.
Both vestibule doors are opened together during busy shift changes.The active door channel inhibits the opposite lock release until closed feedback is restored.
Users repeatedly pull a locked door because they cannot see the airlock status.Paired request stations provide distinct available and wait indications at each entrance.
The second door opens before the airlock has recovered after the first cycle.An adjustable inter-door delay holds release until the selected purge interval has elapsed.
Typical Applications
Two-door personnel airlocksGowning-room vestibulesMaterial transfer roomsClean laboratory entrance lobbies
Technical Parameters
Typical physical and electrical ranges for a two-door cleanroom interlock kit are listed below.
| Core Material | Two-channel controller, regulated power supply, relays, door contacts and request/indicator stations |
|---|---|
| Panel Thickness | 80–130 mm controller enclosure depth; 10–25 mm operator-station depth |
| Effective Width | 200–280 mm controller enclosure width |
| Maximum Length | 320 mm controller enclosure height |
| Steel Facing Thickness | 1.0–1.5 mm steel enclosure; stainless operator plates typically 1.2–2.0 mm |
| Core Density | Approximately 1800–1920 kg/m³ for the two-channel glass-reinforced PCB laminate |
| Thermal Conductivity | Approximately 0.4–0.7 W/(m·K) for the controller PCB laminate |
| Surface Finish | Powder-coated controller cabinet with brushed stainless or flush polymer request stations |
| Joint Type | Two independent door-contact and lock channels with hardwired request, alarm and emergency-release inputs |
| Customization | Available based on the intended application and operating environment |
Available Options
Touch, touchless or mechanical request stationsMagnetic locks or electric strikesPurge timer and door-held alarmNormally locked or normally unlocked sequence
Planning a Two-Door Cleanroom Interlock System specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
