1. Panel Construction
Outer Skin: 304 Stainless Steel / Color Steel (both interior and exterior sides).
Core Material: High-pressure injected rigid Polyurethane (PU) foam.
Foam Density: ≥ 40–45 kg/m³.
Panel Thickness: 100 / 120 / 150 mm (customized based on temperature; ≥120mm recommended for deep-freeze applications).
2. Temperature Ratings
Chiller Application: 0℃ to +5℃
Freezer Application: -18℃ to -25℃
Cryogenic Application: Down to -40℃ (equipped with -40℃ rated seals and frame heating system).
3. Thermal Performance
PU Thermal Conductivity: ≤ 0.022 W/(m·K).
Overall U-Value: Typically ≤ 0.45 W/(m²·K) (varies by panel thickness).
4. Drive & Operation
Operation Type: Heavy-duty top-hung sliding system.
Drive Motor: Industrial geared motor with IP65 protection rating.
Opening/Closing Speed: 0.15–0.30 m/s (adjustable).
Track System: Heavy-duty aluminum alloy track with nylon ball-bearing rollers.
Transmission: Chain or rack-and-pinion drive.
5. Sealing & Frost Prevention
Perimeter Seal: Low-temperature EPDM or TPE gaskets (maintains elasticity down to -40℃).
Anti-Frost System: Standard self-regulating heating cables on the frame and threshold for freezer models.
Closing Mechanism: Lift-on-open, drop-on-close (lifts slightly to clear the seal when opening, drops to compress the seal tightly when closing).
6. Safety & Control
Safety Features: Infrared photo-eye safety beams, auto-reverse on obstruction, and emergency stop button.
Manual Override: Manual release chain/clutch mechanism for manual operation during power outages.
Control Options: Push-button, radar sensor, ground loop detector, or remote control (compatible with PLC/BMS integration).
7. Standard Dimensions
Width: Typically 1500–4000 mm (custom sizes available).
Height: Typically 2000–4000 mm (custom sizes available).
Selection Guidelines
For Temperatures ≤ -18℃: Choose the Freezer model with frame heating system and -40℃ rated seals.
For High-Frequency Forklift Traffic: Opt for a larger opening size, upgraded high-power motor, and extended track.
For Air Curtain Integration: Ensure the controller is equipped with dry contact outputs for seamless linkage.