Industrial Sectional Door — Efficient, Safe and Insulated Overhead Door System

The Industrial Sectional Door from Jiangsu Anbixin IoT Technology Co., Ltd. is a high-performance overhead door designed for factories, warehouses, logistics centers, and production workshops. It features excellent thermal insulation, sealing, durability, and safety, making it ideal for environments requiring high efficiency and energy saving.

1. Product Overview

Industrial sectional doors are constructed from high-strength steel sandwich panels with polyurethane foam insulation. The door panels move vertically or follow the ceiling, maximizing internal space usage. With its robust torsion spring balance and advanced control system, the sectional door ensures smooth, quiet, and reliable operation.

2. Technical Features and Performance

• Thermal Insulation: U-value ≤ 0.28 W/m²·K for a 4×4m door (steel surface type).

• Airtightness: ≤ 2.5 m³/m²·h at 50Pa pressure.

• Sound Insulation: R = 29 dB.

• Wind Resistance: 700 N/m².

• Fire Resistance: Self-extinguishing, Class B.

3. Door Panel Structure

• Double-layer hot-dip galvanized embossed steel sheets, surface polyester coated.

• Polyurethane foam density: 42 ± 2 kg/m³.

• Panel thickness: 40 mm; single steel layer thickness: ≥0.326 mm.

• Integrated strengthening ribs inside each panel for rigidity.

• Optional window: 635 × 330 mm, double-layer polycarbonate lens.

  
  

4. Balance and Safety System

• Torsion Spring System: Designed with computer-calculated precision, made of 82B alloy spring steel, lifespan ≥ 30,000 cycles.

• Anti-Spring Break Device: Prevents the door from dropping more than 15 cm in case of spring failure.

• Anti-Cable Break Device: Ensures door stability in case of steel wire failure.

• Safety Buffer: Installed at the top track to prevent door overshoot.

5. Track & Hardware System

• 2.0 mm hot-dip galvanized C-shaped track with anti-derailment design.

• Fully enclosed safety rail system for easy maintenance.

• Rollers made of reinforced nylon or steel bearings for smooth, quiet operation.

• Hinges, brackets, and connecting parts are galvanized steel for long service life.

6. Sealing System

• EPDM rubber seals applied at the bottom, sides, and top of the door.

• Bottom seal ensures full contact with uneven ground, improving airtightness.

• Top and side seals block dust, moisture, and insects effectively.

7. Drive and Control System

The door uses a compact, safe, and reliable worm gear reduction motor system, available with manual or automatic control options.

• Voltage: 380V / 50Hz

• Motor Power: 375W

• Output Torque: 50 N·m

• Motor Speed: 1400 rpm; Output Speed: 32 rpm

• Control Box: Open / Close / Stop buttons with Emergency Stop switch

• Optional: Remote control or rolling code wireless system

• Manual Chain Operation: Allows opening during power failure

• Electronic limit switch with signal output

8. Product Configuration

9. Application Fields

• Industrial factories and logistics centers

• Cold storage and food processing facilities

• Automobile and machinery manufacturing

• Clean workshops and chemical plants

• Warehouse loading docks

10. After-Sales Service

All products are provided with a one-year warranty. During the warranty period, any malfunction caused by product quality will be repaired free of charge. Damage due to human factors or natural disasters will be charged accordingly.

Our company offers long-term spare parts supply, on-site installation guidance, and operation training for users. Upon receiving a service request, we guarantee a response within 48 hours and timely technical support.

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