Unequal Double Steel Door
Unequal Double-Leaf Design
Flexible entry system for small or large access needs. Auxiliary door can be opened only when needed.Excellent Sealing Performance
Perimeter EPDM gaskets ensure an air-tight barrier, reducing contamination risk.Robust & Hygienic
Seamless surface is corrosion-resistant, easy to clean, and suitable for disinfection procedures.Customizable Options
Available with viewing windows, interlocks, different core materials, and smart access control.Fire & Sound Resistant
Internal rock wool or magnesium cores provide enhanced thermal and acoustic insulation.
📌 Product Overview
Our Unequal Double Steel Door is specially engineered for cleanroom environments and controlled areas requiring superior air-tightness, durability, and hygiene. The unequal leaf design allows for flexible passage of personnel or equipment while minimizing airflow disturbance, making it ideal for pharmaceutical plants, hospitals, laboratories, and electronics manufacturing.
🧱 Product Structure
Main Leaf: Standard-sized door leaf for daily use
Auxiliary Leaf: Narrow side leaf, opens as needed for larger clearance
Door Leaf Core Options:
Honeycomb Paper Core
Rock Wool (Fire-Resistant)
Magnesium Oxysulfide Core
Surface Material: Galvanized Steel / Stainless Steel (304/316L optional)
Finish: High-temperature electrostatic powder coating (custom RAL colors available)
Hinges: Concealed stainless steel or surface-mounted high-load hinges
Sealing: High-resilience EPDM rubber gasket around the perimeter
Glass Window (optional): Double-layer tempered cleanroom glass with seamless frame
Lock System: Mechanical handle lock or electronic access system
Door Closer: Optional hydraulic door closer or automatic return system
📐 Technical Specifications
| Parameter | Value |
|---|---|
| Leaf Type | Main Leaf + Auxiliary (unequal double leaf) |
| Steel Thickness | 0.8 mm to 1.2 mm (customizable) |
| Door Core Options | Honeycomb Paper / Rock Wool / Magnesium Oxysulfide |
| Surface Finish | Powder coated / Stainless steel brushed / Painted |
| Standard Dimensions | 1200mm × 2100mm / Custom sizes available |
| Fire Rating (optional) | Up to Class B1 fire-resistant |
| Door Opening Angle | Up to 180° |
| Sound Insulation | ≥ 30 dB |
| Application | Cleanroom / Lab / Hospital / Electronics Factory |
✅ Key Features & Advantages
Unequal Double-Leaf Design
Flexible entry system for small or large access needs. Auxiliary door can be opened only when needed.Excellent Sealing Performance
Perimeter EPDM gaskets ensure an air-tight barrier, reducing contamination risk.Robust & Hygienic
Seamless surface is corrosion-resistant, easy to clean, and suitable for disinfection procedures.Customizable Options
Available with viewing windows, interlocks, different core materials, and smart access control.Fire & Sound Resistant
Internal rock wool or magnesium cores provide enhanced thermal and acoustic insulation.
🏭 Application Fields
💊 Pharmaceutical Cleanrooms
🏥 Hospitals and Operating Theaters
🔬 Laboratories and R&D Facilities
🧪 Biotechnology and Chemical Plants
⚙️ Precision Electronics Workshops
🍽️ Food and Beverage Processing Plants
📞 Contact us today to get technical drawings, pricing, and sample delivery! We provide OEM and ODM services and support customized projects worldwide.
