Fire-rated roller shutter doors are used in public places with fire-safety requirements: large supermarkets, shopping malls, material markets, exhibition halls, factories, warehouses, and underground parking garages. When a fire alarm sounds, the shutter drops on its own under the building’s fire control system, following a preset program. That slows the spread of flames to other areas and buys time for firefighting. These doors are built to a higher standard; the whole system has to survive around 1,100°C for a set period. How long the door holds its rating is the spec that matters most.
Main parameters:
– Door surface: the housing is cold-rolled steel plate, 2.0–2.5 mm thick.
– Curtain materials:
1. High-density industrial base fabric: made in France; thickness 0.8–2.0 mm. Tensile strength (warp/weft): 5700/5100 N/5cm; tear strength (warp/weft): 900/80 N; operating temperature −30°C to +70°C; fire rating NF-P92-503 M2 (France) or DIN 4102 B1 (Germany).
2. Transparent PVC sheet: 1.5–2.0 mm thick.
3. Control system: PLC and frequency converter.
4. Several manual and automatic controls: push button, pull cord, remote, magnetic loop, radar, and photo-eye interlock, so the door opens and closes the way you need.
RHidoor has earned a solid reputation for product quality, stable performance, and full pre-, during-, and after-sales service, backed by steady technical innovation, professional manufacturing, and fair pricing. We work by “technology-driven innovation, excellent quality” and aim to be a leader in industrial doors.