Compared with personnel air showers, cargo air showers feature larger chamber space, higher fan power and denser nozzle layout, suitable for batch purification of large goods, carton materials and tooling fixtures.
The dual core functions of cargo air shower include high-speed air blast dedusting and bidirectional airlock isolation. Working principle: After materials enter the sealed chamber of cargo air shower, the electronically interlocked double doors lock automatically to avoid air leakage during door opening. The built-in high-pressure fan pressurizes air. After purification by HEPA filters, high-speed clean airflow at 22~25m/s is ejected via dense nozzles on side walls and ceiling, comprehensively stripping floating dust, particles and microorganisms attached to goods surfaces and outer packages.After air blast, the door on clean side can be opened for passage, while unpurified air is blocked from entering clean zones, thoroughly eliminating cross-zone contamination during material transfer. The air blast time of standard cargo air shower is adjustable from 10s to 99s, which can be flexibly set according to material pollution level and dimension to meet diverse purification requirements.
Structural design of compliant cargo air shower is the key to guarantee purification performance. Standard industrial structure owns three core characteristics.
- Fully sealed interlock structure: Equipped with electronic double-door interlock device. When either door opens, the other door locks automatically, preventing direct communication between high & low cleanliness zones, forming a stable airlock buffer area and maintaining workshop pressure gradient effectively.
- High-efficiency air circulation system: Adopt primary filter + HEPA dual-stage filtration. Recirculating air duct realizes continuous air filtration without dedusting dead zones. Wide-angle adjustable nozzles deliver 360° coverage on goods without blind spots.
- Durable clean housing: Mainstream units adopt SUS304 stainless steel, featuring corrosion resistance, easy cleaning and no dust accumulation dead corners. It adapts to humid, dusty workshops with frequent disinfection and meets cleaning compliance requirements for cleanroom equipment.
Technical adaptation for various working conditions is critical for practical deployment.
- Standard electronic & food clean workshops: Standard cargo air shower for routine material transfer purification.
- Large equipment & bulk carton transfer: Custom widened & heightened non-standard cargo air shower for oversized goods.
- High-cleanliness pharmaceutical & sterile medical device workshops: Equipped with UV sterilization and auxiliary ozone disinfection to realize microbe elimination besides dedusting, satisfying sterile production standards.
- Explosion-prone environments with combustible dust: Explosion-proof cargo air shower with explosion-proof fans and electrical components to eliminate safety hazards.
As the core purification barrier for logistics passages in clean workshops, cargo air shower cuts contamination introduced by materials at source relying on dual technical advantages of physical dedusting and air isolation. It is essential core equipment to stabilize cleanroom environment and pass GMP & cleanroom certification.
