Henan Jutai Door Industry is a professional manufacturer specializing in the research, development, production, sales, and service of fire-resistant doors such as steel-wood fire doors, wooden fire doors, steel fire doors, and fire shutter doors. All products must meet strict specifications: the outer dimensions must not exceed those listed in the sample description, the door leaf thickness should be equal to or greater than the sample, and the side wall width of the fire door frame must also match or exceed the sample specification. The fireproof glass used in the product must have an outer dimension no larger than the sample, and its thickness must be equal to or greater than the sample’s.
Fire-resistant seals are essential for both steel and wood fire doors, and they must be certified by a national testing agency. The seals should be straight, without any warping, and accompanied by a valid inspection report.
High-quality steel fire doors should have solid welds with evenly distributed joints, a smooth and clean surface, and clearly marked product identification, fire safety certification, and quality inspection marks in their designated positions. For wooden fire doors, the appearance should be intact, free from damage, with a clean surface, no discoloration, burrs, or hammer marks. The cutting edges and seams must be tight and even, and all required labels must be properly placed, including the quality inspection and certification marks.
The multi-functional active escape fire door features an intelligent unlocking mechanism that responds to smoke detectors or alarm systems. When a fire is detected, the system quickly alerts occupants and automatically unlocks the door using its internal power supply, enabling safe and rapid evacuation. Normally, three identical active locks secure the door quietly. When the circuit is energized, the electromagnet activates, pulling the lock cylinder down to release the door. In case of power failure, the electromagnet deactivates, and the spring returns the lock to its original position, securing the door again. This ensures the door remains locked when not in use, preventing accidental opening and maintaining security.
For more information, contact Henan Jutai Building Materials Sales Co., Ltd.
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Online consultation via QQ: [Insert QQ Number]
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