Extreme Cold Storage Door Semi Recessed Insulated Doors For Cold Rooms
Semi-Recessed Cold Room Door for Ultra-Low Temperature & Freezer Environments
Ultra-low temperature cold rooms operate under extreme conditions where door insulation, sealing, and anti-freezing performance directly affect system stability. The semi-recessed cold room door is engineered for freezer environments below -30°C, providing reliable thermal protection and smooth operation in deep-freeze and blast freezing applications.
This freezer door solution is widely used in industrial deep-freeze storage, quick freezing rooms, and ultra-low temperature cold storage facilities.
Design Requirements for -30°C and Below
Challenges in Ultra-Low Temperature Cold Rooms
At temperatures below -30°C, cold air leakage, frame icing, and door deformation become critical issues. Doors must withstand strong temperature differentials while maintaining airtight performance.
Semi-Recessed Structure for Thermal Stability
The semi-recessed design reduces exposed door edges and thermal bridges, helping maintain consistent internal temperatures and limiting frost formation in freezer rooms.
Product Specifications
| Required Options | Specifications |
|---|---|
| Door Size | Customized according to door opening requirements |
| Door Leaf Thickness | 75/100/120/150mm |
| Opening Direction | Left-opening/Right-opening |
| Door Panel Material | PVC plastic profiles |
| Facing Material | Color steel/304 stainless steel/Embossed aluminum plate |
| Frame Dimensions | Aluminum alloy door frame |
| Door Leaf Material | Thermal insulation and flame-retardant polyurethane (40kg/m³±2) |
| Hardware Material | Zinc alloy/Stainless steel/Nylon fittings |
| Seal Material | EPDM/PVC magnetic sealing strip |
| Safety Devices | Internal push rod, internal handle |
| Heating Method | Aluminum alloy door frame with three-sided/four-sided heating, optional threshold heating |
| Suitable Temperature | -45°~50° |
Typical Ultra-Low Temperature Applications
- Blast Freezer Rooms
- Deep Freezer Cold Storage (-30°C to -45°C)
- Quick Freezing Tunnels and Chambers
- Industrial Frozen Goods Storage Facilities
- Ultra-Low Temperature Processing Cold Rooms
Performance Advantages in Ultra-Low Temperature Use
- Stable Insulation Performance Below -30°C
- Reduced Energy Consumption in Deep Freeze Storage
- Reliable Door Operation Without Freezing
- Lower Maintenance Frequency in Extreme Cold
- Customizable Configuration for Different Freezer Projects
Frequently Asked Questions
Is a semi-recessed cold room door suitable for -40°C or lower temperatures?
Yes. With sufficient door thickness and a heated frame system, it is suitable for freezer rooms operating down to -45°C.
What door thickness is recommended for ultra-low temperature cold rooms?
For temperatures below -30°C, door thicknesses of 120mm or 150mm are strongly recommended.
Is frame heating mandatory for deep-freeze applications?
For ultra-low temperature environments, heated door frames are highly recommended to prevent icing and ensure reliable operation.
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