侧向收卷的防火卷帘解决了上卷式卷帘难以解决的大型洞口和超大型洞口尺寸的安装需求，适用于建筑物较大尺寸的洞口或是防火分区的隔断，可用于防火、防盗和活动隔断如商店橱窗、建筑大厅、中庭、分隔、防火分区、活动墙、仓库大门等场合 产品特点Features 1) 传动系统和运行机构能适合单卷轴最大洞口幅宽40m，双卷轴最大门洞幅宽80m的传动要求 Driving system and operating component are applicable to single roller of maximum width 40m, and double roller of maximum width 80m. 2) 可配曲轨在不小于90°角度可连续转弯；。 Turning tracks can be equipped for continual curves no smaller than 90° 3) 导轨在洞口上方只需约160mm，几乎不占用洞口高度。 Only approximately 160mm tracks are needed on top of entrance, which requires little space of the entrance. 4) 有手动和电动操作，与火灾自动报警系统联动，可实现自动控制。 Manual and electrical operation, can perform auto control together with auto fire alarm system