tubular motor ,motorized door ,rolling door and garage door motor .lenth:550mm,AC 230v 50Hz,280W It can be used to roling door and shutter door, garage door etc, the same time, it suit for kinds of door materials, such as auminum, steel, wood, pvc etc. Automatic system, open by remote, when stop power, can open the clutch by hand. it's very convenient and safty. NamesBaixin B-J30Code30002Rated ...