Pass Through Chambers | Clean Room Equipment

Pass Box, Pass-through Chamber

Pass through chambers minimize the risk of contaminant entry into a cleanroom by providing a way for pick-up and delivery of products and supplies without having to enter the cleanroom. An interlocking apparatus prevents two doors from opening simultaneously, also ensuring a high cleanliness. Users can choose a mechanical or electronic lock.

Jinyi specializes in producing custom stainless-steel pass-through chambers. All interior corners are arc-designed and easy to clean with a surface mirror, matte, wire drawing, or baking finish for customers to choose from.

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Key Features

Cleanliness level: Class B for laminar flow pass-through chambers.
Double-wall construction with seamless interior corners (rounded edges) to prevent particle accumulation.
Airflow design: Vertical laminar flow with top-down air delivery and bottom return; base features perforated 304 stainless steel cold-rolled plate with reinforcing ribs.
Filtration system: Pre-filter – G4 efficiency, HEPA filter – H14 efficiency
Air velocity: 0.38–0.57 m/s at 150 mm below the HEPA filter equalizing panel.
Pressure differential monitoring:
1) Displays filter pressure drop
2) Range: HEPA 0–500 Pa / Intermediate 0–250 Pa
3) Accuracy: ±5 Pa
Control features:
1) Start/Stop button for fan
2) Built-in electronic door interlock system
3) UV lamp with separate control switch
Maintenance access: Inspection port located at the bottom of the pass box for fan maintenance.
Noise level: Less than 65 dB during normal operation.
HEPA diffuser plate: Constructed from 304 stainless steel.

Parameters

External dimensions (mm)	W800×H1200×D690	W1000×H1400×D890
Working area (mm)	W600×H600×D600	W800×H800×D800
Air velocity at nozzles (m/s)	0.3-0.9
Blowing time	Manual control
Material	SUS304 stainless steel (interior and housing)
HEPA filter size	610×610×93 mm	487×487×93 mm
Filtration efficiency	H14 (99.99% @ 0.3 µm)
Fan power (W)	165
Power supply	22V/50Hz

Cleanroom Components

Backed by more than 10 years of experience in the design and construction of cleanrooms, Jinyi offers one stop services for industrial modular cleanrooms and operating theaters.

Pass Box, Pass-through Chamber