BX Bunka Windproof steel shutter

### Bunka Steel Roller Shutter Doors for Storm Protection

Manufactured by **BX Bunka**, a leading Japanese corporation in the steel door market, these roller shutter doors are built to withstand wind speeds of up to 250 km/h. They have been tested in real-world conditions at **IBST** and are ideal for protecting factories in storm-prone regions like Da Nang, Quang Nam, and Hue.

### Technical Features of Bunka Storm-Proof Steel Roller Shutter Doors

- **Roller Shutter Slats:** Made from high-quality hot-dip galvanized steel according to Japanese standard **JIS G3302**, with thickness options of 0.8mm or 1.2mm. Featuring an exclusive intelligent design from BX Bunka, these shutters ensure safety, strength, resistance to tampering and break-ins, and smooth, quiet operation. They are suitable for factories, industrial facilities, and high-end projects that demand high safety, durability, and aesthetics.

  With a maximum width of 11 meters and a maximum height of 8 meters, the Bunka steel roller shutter is the perfect solution for factories and facilities with specific technical requirements. It solves common problems such as slat sagging and jamming, often found in other market products.

- **Japanese Imported Motor:** Bunka steel roller shutters use motors imported from Japan, which have been integral to BX Bunka's success for decades. These motors adhere strictly to Japanese standards, ensuring long-lasting, smooth, and stable operation. The product's reliability is endorsed by major global corporations like Canon, Fuji Xerox, Honda, Toyota, and General Electric.

- **Roller Shutter Tracks:** Designed to Japanese standards, the roller shutter tracks are meticulously crafted on modern production lines at BX Bunka Vietnam's factory. A spring-balanced system is installed within the rolling axis to support the door body, ensuring rigidity and smooth, stable operation over the long term.

- **Bottom Bar:** The T-shaped bottom bar is made of 40x40x3mm steel sections, precisely crafted, and paired with high-quality **EPDM rubber gaskets** imported from Japan. This design helps balance the door's weight and prevent water intrusion.

### International Standard Fire Resistance
Bunka stormproof steel roller shutters are certified for fire resistance according to **BS EN 16341:2000** standards (UK) and **TCXDVN 386:2007** (Vietnam) by the Fire Prevention Department of the Ministry of Public Security. These shutters can automatically close during a fire, preventing the spread of flames for 2 to 4 hours, minimizing material losses, and protecting human life during emergencies.

### Smooth and Safe Operation
The roller slats are made of 1.2mm galvanized steel, with a smart design for both inward and outward rolling types. Bunka stormproof roller shutters feature an **obstacle detection sensor** to prevent accidents and malfunctions. When the door is closing and detects an obstacle, it will automatically stop, pause, or roll back up. Once the obstacle is removed, the door resumes normal operation.

There are two common types of sensors: the **Magic Sensor MSS-4.2** (weight sensor integrated into the bottom slat) or the **Magic Sensor BSS** (photoelectric sensor).

### Wind Resistance Up to 250 km/h
Due to Japan's frequent encounters with severe storms, BX Bunka has long developed stormproof steel roller shutters to protect large-scale facilities. Thanks to their specially reinforced slats and tracks, as well as a convenient storm protection column system, these doors are certified in Japan to withstand winds of over 208 km/h. They are the ideal solution for protecting buildings in storm-prone areas.

With climate change and the increasing frequency of severe storms in Vietnam, especially in the South China Sea, Bunka stormproof roller shutters are the number one choice. Backed by 65 years of research and development in Japan, these shutters help safeguard facilities against major storms.