The double-column car lift is an attached elevator whose guide frame is a double-column, whose top end is connected by a beam, and has a gate-shaped frame structure.
Like a gantry. For vertical transportation of building materials, goods and equipment. The hoisting disc is driven by a hoist by means of a wire rope, and performs lifting movement along the guide frame.
When the lifting height is less than 30m, the cable guide rope is often used to fix the guide frame; when it is greater than 30m, the elevator attachment frame is used to attach the building