Pass Box, Pass-through Chamber

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Website: http://solution-cleanroom.com/3-6-pass-through-chambers.html

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.

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