201 Stainless Flat Door Pass Box | Mechanical Interlock | 760x670x720mm
Industrial-Grade Contamination Barrier: Flat Door Mechanically Interlocked Pass-Through Window
Precision Engineered for Critical Environments
Hybrid Material Excellence: Exterior cold plate baked coating (IP55 corrosion resistance) + interior 201 sanded stainless steel (Ra≤0.7μm) withstands 100+ CIP/SIP cycles.
Airflow-Validated Security: Mechanical interlock system achieves 99.97% HEPA-filtered air retention during transfers, exceeding ISO 14644-1 Class 5 requirements.
Parameter Name | parameter |
Material | 201 sanded stainless steel with cold plate baking paint |
Window Design | Double doors with tempered glass observation windows |
Interlock System | Mechanical interlock to prevent simultaneous door opening |
Lighting | UV sterilization lamp and embedded clean lighting lamp |
Internal Design | Rounded corners to eliminate dead angles |
Door Handle | Stainless steel for durability |
External Dimensions | W760 × D670× H720 (mm) |
Internal Dimensions | W600 × D600 × H600 (mm) |
Certifications | ISO 14644-1 |




Key Features
1. 201 Sanded Stainless Steel with Cold Plate Baking Paint: Durable and corrosion-resistant for cleanroom compatibility.
2. Double Door Design: Features tempered glass observation windows for visibility and aesthetics.
3. Mechanical Interlock System: Ensures both doors cannot be opened simultaneously, preventing cross-contamination.
4. UV Sterilization and Clean Lighting: UV lamp for sterilization and embedded lighting for illumination during transfers.
5. Rounded Interior Corners: Eliminates dead angles for easier cleaning and compliance with hygiene standards.
6. Durable Door Handle: Made of stainless steel for long-lasting use.
7. Optimized Dimensions: Compact yet spacious design for efficient use in cleanroom environments.
8. Safety & Visibility: Tempered glass ensures clear visibility and enhanced safety.
Application Scenarios
Material transfer in pharmaceutical cleanrooms.
Sterile sample handling in biomedical laboratories.
Contamination-sensitive component transfer in electronics manufacturing.



Q1: How does the mechanical interlock system in this 201 stainless flat door pass box prevent cross-contamination in pharmaceutical or electronics cleanrooms?
The mechanical interlock system is a critical safety feature that ensures only one door opens at a time, creating an airtight barrier between clean and non-clean zones. This eliminates the risk of cross-contamination, a strict requirement in GMP-compliant environments. The system integrates with the pass box’s robust 201 stainless steel construction, which provides a smooth, non-porous surface that resists particle buildup and simplifies sanitization. The 760x670x720mm size balances interior space for material transfer with a compact footprint, making it ideal for labs or production lines where space is limited. Together, the interlock system and durable design ensure safe, compliant material handling in sensitive industries.
Q2: Can the 201 stainless steel construction of this pass box withstand frequent sanitization and chemical exposure in harsh cleanroom environments?
Yes. The 201 stainless steel build offers excellent corrosion resistance, making it suitable for cleanrooms where regular cleaning with disinfectants or exposure to mild chemicals is necessary. Its smooth, durable surface resists scratches and particle adhesion, reducing maintenance efforts and contamination risks. The pass box is engineered with welded seams and airtight seals to maintain structural integrity even in high-humidity or chemically intensive settings. Routine maintenance, such as filter replacements (HEPA H14 compatible) and gasket inspections, ensures long-term reliability. For highly corrosive applications, optional upgrades to 316L stainless steel are available, further enhancing chemical resistance.
Q3: How does the flat door design and 760x670x720mm size of this pass box optimize space and efficiency in compact cleanroom workflows?
The flat door design minimizes protrusions, saving valuable space in tight cleanroom layouts while maintaining a functional 760x670x720mm interior for efficient material transfer. The seamless, flush-mounted door reduces recessed areas where dust or contaminants could accumulate, supporting ISO 14644-1 Class 5 cleanliness standards. The compact dimensions allow easy integration into existing production lines or labs, while the ergonomic layout ensures quick, intuitive access for operators. The mechanical interlock system streamlines operations by ensuring safe, sequential door movements, reducing downtime in high-traffic environments. This space-saving, efficient design is particularly beneficial in pharmaceutical or electronics facilities where maximizing floor space and workflow efficiency are critical.