As the core component of key areas such as hospital clean rooms, operating rooms, and ICUs, the design of medical clean doors must meet stringent requirements such as air tightness, durability, hygiene, and intelligent operation. The following are the product features of

medical clean doors

:

As the core component of key areas such as hospital clean rooms, operating rooms, and ICUs, the design of medical clean doors must meet stringent requirements such as air tightness, durability, hygiene, and intelligent operation. The following are the product features of medical clean doors:

1. Core technology of air tightness

Sealing system

• Triple sealing structure: door frame V-shaped track + magnetic sealing strip (EPDM rubber) + bottom automatic lifting sealing strip to ensure air tightness up to GB/T 7107-2002 Level 8 (≤1.5m³/(m·h) @100Pa).
• Pressure adaptability: Maintain sealing within the pressure difference range of ±50Pa (applicable to negative pressure scenarios in biosafety laboratories).

Certification upgrade:

• EU EN 1634-3 fireproof airtight door standard (1 hour fire integrity can be added).
• ISO 14644-4 clean room sealing performance test (local leakage rate ≤0.25%).

 

2. Material and structure optimization

Power beam: 6063-T5 aluminum alloy, anodized (film thickness ≥ 15μm), V-track tolerance ±0.1mm, ensuring wear-free for millions of times
Door panel: 304 stainless steel (2B surface) or antibacterial aluminum plate (coating antibacterial rate ≥ 99%), R angle ≥ 50mm to avoid dust accumulation
Hardware: German Häfele hidden hinge, corrosion resistance level reaches ISO 9227 salt spray test 500 hours

 

3. Intelligent control system

Sensing scheme comparison:

Microwave radar: human motion detection (radius 3m)
Foot sensing: infrared reflection (15cm from the ground)
Hand sensing: capacitive touch (IP65 protection

Safety redundancy design:

• Dual beam photoelectric protection (EN 16005 standard), rebound force ≤ 150N when encountering resistance.
• Emergency power-off manual opening force ≤ 80N (in compliance with ADA barrier-free standards).

 

4. Industry customized solutions

Surgical department: The door body is embedded with lead plate (1mmPb equivalent) to meet the radiation protection requirements.

PCR laboratory: The door frame is pre-installed with airtight sleeves to form a seamless connection with the wall sealant (Dow Corning 732).

Pharmaceutical factory clean area: The door surface is coated with static conductive coating (resistance value 10⁵-10⁸Ω) to avoid static adsorption of particles.

 

5. Production quality control points

Process standards:

Laser cutting (accuracy ±0.05mm) + argon arc welding (weld penetration detection).

Dynamic fatigue test (10,000 times/day × 100 days simulation).

Testing equipment:

Airtight test chamber (can simulate -30Pa~+100Pa pressure difference).

Particle counter scans door gap leakage (≥0.3μm particle zero detection).

 

6. Maintenance and life cycle

Preventive maintenance:

• Lubricate the track every quarter (Food Grade NSF H1 lubricant).
• Replace the seal strip every year (mandatory replacement when the aging hardness changes by ＞15%).

Life indicators:

• Mechanical parts: ≥1,000,000 cycles (EN 16005 certification).
• Electronic components: MTBF≥100,000 hours (IEC 61508 SIL2).

When purchasing medical clean doors, the focus should be on FFU (full life cost) rather than just the initial price. It is recommended to ask the supplier to provide:

1. BIM model (verify the handover node with the wall)
2. Third-party inspection report (SGS/TÜV)
3. Case site airflow organization test video

Innovative technologies such as self-healing seal strips (3M™ Polyurethane) and UVC door handle disinfection modules have appeared in the high-end market, which can further improve the level of hospital infection prevention and control.

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