Maintaining temperature stability in a cold storage environment is crucial for preserving product quality and energy efficiency. NHentrance’s high speed cold storage door is designed to meet the strict requirements of modern cold chain logistics, ensuring safe, fast, and energy-efficient operation in low-temperature conditions.
Energy Efficiency and Thermal Insulation
The door curtain is made of double-layer PU fabric specially designed for low-temperature environments. The middle layer is filled with 30mm thick eco-friendly insulation material, which significantly enhances thermal insulation and energy-saving performance.
Unlike PVC materials, PU surfaces maintain stable hardness even when exposed to continuous temperature fluctuations between the cold room and outside environment. In contrast, PVC can become brittle or crack within 1–2 years due to temperature-related hardness changes. Therefore, PU curtains ensure durability and long-term reliability, making them the preferred material for cold storage high speed doors.
Heated Sealing System to Prevent Frost Build-Up
Both vertical columns feature a heated bag-type side seal and top sealing structure. The integrated anti-freeze heating system effectively prevents frost accumulation on both sides of the door columns, ensuring smooth and reliable door operation even in extreme cold conditions.
This design ensures that even under heavy humidity and sub-zero temperatures, the cold storage door maintains tight sealing and consistent performance.
Safety and Automatic Recovery Design
The photoelectric sensors and soft bottom edge anti-collision system provide excellent safety protection during operation. If the curtain is hit accidentally, the self-repairing mechanism allows it to automatically reinsert into the guide rails during the next opening cycle.
This self-repairing cold storage door design helps users reduce maintenance costs and downtime, making it ideal for high-traffic cold chain passages and buffer zones between temperature areas.
Product Specifications
Dimensions
- Width: 800mm ~ 3500mm
- Height: 800mm ~ 5000mm
Speed
- Opening speed: 0.8m/s ~ 2.0m/s (adjustable, depends on door size)
- Closing speed: 0.8m/s (adjustable)
Curtain Material
- Material: Double-sided PU fabric, 0.8mm thick, with insulation layer (approx. 20mm total thickness)
- Reinforced with streamlined fiberglass for high abrasion resistance
Sealing Performance
- Side and top sealing: Polyurethane insulation material for effective cold air retention and airtightness
Structure
- Columns: Aluminum alloy with black powder coating and impact-resistant design
- Wind resistance: Up to Level 8
- Self-recovery function ensures door returns to normal after impact
Electrical and Control System
- Power supply: 110-120VAC 50/60Hz / 220-240VAC 50Hz
- Motor & Control: Equipped with high speed door servo motor and control box for stable and precise door operation
- Emergency opening: Can be manually opened using a standard wrench in case of power failure
Safety Features
- Infrared sensor: Keeps door open if obstacles are detected
- Optional opening methods: Radar sensor, magnetic loop, remote control, Bluetooth, pull cord, or interlock system
Application and Advantages
The NHentrance high speed cold storage door is the optimal solution for:
- Cold chain logistics and refrigerated warehouses
- Food processing and pharmaceutical industries
- Temperature-controlled buffer passages
Its PU insulated curtain, heated side seals, and automatic recovery design deliver outstanding durability, energy efficiency, and safety, reducing long-term maintenance and operating costs for cold storage users.
Conclusion
Choosing the right cold storage high speed door can greatly enhance operational efficiency and energy management. NHentrance’s advanced PU insulated high speed door offers a perfect balance between insulation, speed, and reliability — an ideal solution for modern cold storage and logistics applications.
