Dynamic pass box
LENGE Dynamic Pass Box is an essential transfer device for pharmaceutical cleanrooms, enabling safe, contamination-free passage of materials between areas of equal or different cleanliness levels. Unlike static pass boxes, the dynamic version incorporates a built-in air blower and HEPA filtration to create positive pressure and unidirectional airflow inside the chamber—actively purging particles and maintaining cleanroom integrity during transfer.
Technical Specifications & Parameters:
| Model | Material | Type | Outer Size | Inner Size | Weight | Custom Size | No. of Door | Door Material | Interlocking | Control Mode | Design of Working Area | Rated Air | UV Lamp | Noise | Power Supply | Power |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| / | / | / | WxDxH (mm) | W'×D'×H' (mm) | (KG) | / | / | / | / | / | / | Velocity(m/s) | (W) | (dB) | / | / |
| LCTW3-040040 | SUS 304/316L Stainless Steel |
Corner Type, Three-door Type, Double-layer Type, Customized |
620x460x950 | 400×400×400 | 80 | Available | 2/4 | Tempered Glass | Mechanical/ Electronic | Automatic/Manual Operation | Integrated Circular Arc Corner | 0.45±20% | 6×2 | 65 | 220V, 50HZ | 0.2kW |
| LCTW4-050050 | / | / | 720x560x1050 | 500×500×500 | 100 | Available | / | / | / | / | / | / | 8×2 | / | / | 0.2kW |
| LCTW6-060060 | / | / | 820x660x1150 | 600×600×600 | 130 | Available | / | / | / | / | / | / | 8×2 | / | / | 0.2kW |
| LCTW6-060080 | / | / | 820x660x1350 | 600×600×800 | 160 | Available | / | / | / | / | / | / | 8×2 | / | / | 0.2kW |
| LCTW8-070070 | / | / | 920x760x1250< | 700×700×700 | 180 | Available | / | / | / | / | / | / | 15×2 | / | / | 0.2kW |
| LCTW10-080080 | / | / | 1020x860x1350 | 800×800×800< | 210 | Available | / | / | / | / | / | / | 20×2 | / | / | 0.3kW |
| LCTW16-100100 | / | / | 1220x1060x1600 | 1000×1000×1000 | 250 | Available | / | / | / | / | / | / | 20×2 | / | / | 0.3kW |
Key Features & Benefits
A01
Air Segregation & Contamination Control
Built-in blower and HEPA filtration deliver unidirectional airflow (rated velocity 0.45 m/s ±20%) to remove loose particles and prevent cross-contamination between clean zones.
A02
Reliable Interlocking System
Mechanical or electronic interlocks ensure only one door can open at a time — fail-safe, maintenance-free, and GMP-compliant to eliminate simultaneous access risks.
A03
High-Quality Construction
Fully welded SUS304/316L stainless steel body with seamless interiors, rounded coved corners, and frameless tempered glass doors (double-deck 5mm thick) for easy cleaning, chemical resistance, and long service life.
A04
Visibility & Usability
Clear tempered glass doors allow full internal view; automatic or manual operation modes with UV lamp sterilization (optional per model).
A05
Quiet & Efficient
Low noise (≤65 dB), energy-efficient blower, power supply 220V/50Hz, consumption 0.2–0.3 kW.
A06
Customizable Design
Tailored to your URS: sizes, configurations (corner type, three-door, double-layer, four-door), accessories, and materials.
Unmatched Benefits for Pharmaceutical Manufacturers
Enhanced Product Quality
Our clean room equipment ensures the consistent removal of impurities, leading to higher-quality drugs with reduced risk of contamination or adverse reactions. This results in superior pharmaceutical products that meet rigorous industry standards, providing peace of mind to manufacturers concerned about product integrity and safety.
Reduced Production Costs
By minimizing waste, reducing rejects, and extending product shelf life, our clean room cleaning equipment translates into significant cost savings. Efficient operations lead to more streamlined production processes, reducing overhead and operational costs.
Improved Patient Safety
Pure medications contribute to improved patient safety and reduced healthcare costs associated with drug-related complications. Our custom-made clean room equipment is designed to ensure the highest levels of sterility and purity, protecting patients and enhancing therapeutic outcomes.
Regulatory Compliance
Our systems meet stringent pharmaceutical industry standards and regulatory requirements, ensuring your operations remain compliant. As trusted cleanroom equipment manufacturers, we provide customized cleanroom equipment that aligns with the latest industry regulations, helping you avoid costly fines and ensuring smooth regulatory audits.
FAQs for Better Results
What is a Dynamic Pass Box?
A Dynamic Pass Box is an active transfer device for cleanrooms, allowing safe passage of materials between areas of equal or different cleanliness levels. Unlike static models, it features a built-in air blower and unidirectional airflow (0.45 m/s ±20%) to actively purge particles and segregate air, minimizing contamination entry into the cleanroom.
How does a Dynamic Pass Box differ from a Static Pass Box?
A Static Pass Box relies on passive transfer with interlocked doors but no active airflow. A Dynamic Pass Box adds a blower for self-cleaning unidirectional air circulation, making it ideal for higher-risk transfers (e.g., between different cleanliness classes or when particle control is critical) — while static suits equal-class areas with lower contamination risk.
How does the air segregation and decontamination work?
The built-in blower creates unidirectional airflow inside the chamber, drawing and purging loose particles. Contaminated air is expelled or filtered out, maintaining positive pressure and preventing cross-contamination. This active system ensures cleaner transfers compared to passive designs.
What interlocking system is used?
We use reliable mechanical or electronic interlocks (fail-safe and maintenance-free) that prevent both doors from opening simultaneously. This GMP-compliant feature eliminates the risk of air exchange between zones and ensures cleanroom integrity.
What materials and design features ensure cleanliness and durability?
Fully welded SUS304/316L stainless steel body with seamless interiors, rounded coved corners, frameless construction, and double-deck 5mm tempered glass doors for full visibility and easy cleaning. These elements minimize particle traps, resist chemicals, and support long service life in demanding pharma environments.
Is UV sterilization included?
Yes — each model includes UV lamps (power varies by size, e.g., 6×2 W to 20×2 W) for additional surface decontamination during cycles. Operation can be automatic or manual.
Are Dynamic Pass Boxes customizable?
Yes — fully tailored to your URS (User Requirements Specification). We customize dimensions, configurations (corner type, three-door, double-layer, four-door), accessories, materials, and features to fit your exact process and facility layout.
What are typical applications for Dynamic Pass Boxes?
Primarily for pharmaceutical manufacturing, API handling, biotech labs, solid dosage production, R&D, and QC areas. They’re ideal for transferring materials between cleanrooms of the same or adjacent classes (e.g., Grade D to C), where active particle control is essential to protect product purity.
