Unfilled (Hollow)

Hollow double-walled steel rolling doors are designed with an air gap between two galvanized steel panels. This structure adds extra strength and impact resistance to the door compared to single-layer doors, while being lighter than filled models. Its lightness allows for faster opening and closing and puts less strain on the motor mechanism. Increased Durability: The double-layer structure offers higher resistance to impacts and force compared to single-layer doors. Fast and Efficient Operation: Its lightweight structure allows for quick passages in high-traffic areas. Economical Security: An ideal solution for places where insulation is not a priority but security and fast operation are important. An excellent choice for areas such as indoor parking entrances/exits, high-traffic loading docks, and interior partitions.