Trolley operators are designed to open and close the door as the carriage is driven back and forth on the horizontal operator track. They are normally mounted on the centerline of the door and parallel to the floor. They require a clearance above the high arc of the door and a space behind the door when it is fully open.
Use the Selection Chart below to choose the operator according to the type of door you want to motorize, the type of usage the door will perform and the mechanical reduction required.
(1) Not recommended for Multiblade doors. (2) Jackshaft operators can be used on specially adapted Standard Lift Sectional Doors