Cold Storage Insulated Sectional Overhead Door
The SD5300 cold storage sectional overhead door is purpose-built for temperature-controlled environments. Constructed with SUS304 stainless steel panels and a comprehensive EPDM sealing system, it maintains thermal integrity in freezer rooms, cold chain logistics centers, and food processing facilities.
Key Features
- SUS304 Stainless Steel Construction: Superior corrosion resistance and hygiene compliance, ideal for food-grade and pharmaceutical cold storage environments.
- EPDM All-Round Sealing: Complete perimeter sealing on both sides, top, bottom, and between door panels eliminates thermal bridging and prevents condensation.
- Beaufort 11 Wind Resistance (28m/s): Engineered for external installations in coastal and high-wind regions.
- 50mm Thick Insulated Panels: Enhanced thermal barrier minimizes cold loss and energy consumption in sub-zero environments.
- Class A Fire Retardation: Compulsory safety certification for cold storage and industrial facilities.

Technical Specifications
| Material |
SUS304 Stainless Steel, Aluminum Alloy |
| Panel Thickness |
50mm |
| Panel Width |
500mm |
| Core Density |
48kg/m3 Polyurethane Foam |
| Sealing System |
EPDM Rubber All-Round (Top, Bottom, Sides, Panel Joints) |
| Guide Rail |
2mm Hot-Dip Galvanized Steel |
| Heat Preservation |
4.5W/m.h |
| Wind Resistance |
Beaufort Scale 11, 28m/s |
| Sound Insulation |
26 dB |
| Max Dimension |
12m x 8m |
| Power Supply |
380V 50Hz / 220V 50Hz |
| Opening Speed |
0.2-0.3m/s |
| Service Life |
10 years / 100,000 cycles |
| Balance System |
Torsion Spring with Anti-Break Device |
Cold Storage Optimizations
- Rust-proof SUS304 panels suitable for high-humidity cold environments
- Optional heated guide rail system for sub-zero operation
- Rapid open/close to minimize cold air loss
- Finger-protection safety design on all panel joints
- Emergency manual chain hoist for power-off scenarios
Applications
Designed for cold storage warehouses, frozen food distribution centers, pharmaceutical cold chains, food processing plants, and any industrial facility requiring reliable thermal isolation in harsh weather conditions.


