- Product description
- Main functions
- Basic Parameters
Main Technical Parameters and Performance Indicators
Fire Resistance Rating：
Class F4 (Fire resistance rating ≥ 4.0h). Other classes such as F3 (≥3.0h) or F2 (≥2.0h) are available based on design requirements.
Material：
Curtain Slats: High-quality galvanized steel sheet, thickness ≥ 1.5mm. Slats feature a double-curved composite structure filled with environmentally friendly, high-temperature-resistant insulation material.
Opening/Closing Speed：
Electric operation: 2-9 m/min (adjustable). Free-fall descent by gravity: ≤ 9.5 m/min.
Motor Power：
Determined by door opening size, typically 0.75kW - 2.2kW, 380V/50Hz three-phase or 220V single-phase power supply.
Control Modes：
Standard electric control, fire alarm linkage control (receiving signals from smoke/heat detectors), manual control (pull chain, push buttons), and thermal auto-release (fusible link device, activates at 68°C ±5°C).
Guides/Rails：
Made from formed galvanized steel sheet, depth ≥ 70mm, thickness ≥ 2.0mm, ensuring the curtain slats do not deform or jam under high temperatures.
Housing/Cover Box：
Recessed or surface-mounted, constructed from ≥ 1.2mm galvanized steel sheet, providing aesthetic finish and protection for the rolling mechanism.
Roller Shaft：
High-quality seamless steel tube, diameter ≥ 165mm, wall thickness ≥ 4.0mm, ensuring sufficient strength and rigidity.
Manual Operation：
tandard equipped with manual quick-release device and hand chain for manual operation during power failure.
The Steel Fire-Resistant Rolling Shutter Door (hereinafter referred to as the "fire shutter") is an automatic fire compartmentation facility compliant with national fire safety regulations and standards. Primarily constructed from fire-resistant materials, it is designed to close (or descend) automatically according to a predetermined program in the event of a fire, effectively preventing the spread of flames and smoke. This provides crucial time for occupant evacuation and firefighting operations. This product is widely used for openings in fire compartments, escape routes, elevator lobbies, atriums, and other areas in industrial and civil buildings.
Fire Resistance Rating：Class F4 (Fire resistance rating ≥ 4.0h). Other classes such as F3 (≥3.0h) or F2 (≥2.0h) are available based on design requirements.
Material：Curtain Slats: High-quality galvanized steel sheet, thickness ≥ 1.5mm. Slats feature a double-curved composite structure filled with environmentally friendly, high-temperature-resistant insulation material.
Opening/Closing Speed：Electric operation: 2-9 m/min (adjustable). Free-fall descent by gravity: ≤ 9.5 m/min.
