The drive components are needed for both the outer and inner head. The main and emergency drives are each designed as cable drum drives with hydraulic motors. Inside the hydraulic motors, several hydraulic pistons are driven, which in turn are connected to a control disc and thus generate a rotary output movement (radial piston motors). This enables a stepless rotary movement to be achieved using oil hydraulics.
With the help of these drives, the two sliding gates are moved via an upper and a lower carriage (wheelbarrow principle). The ropes of the main drives are connected to the upper carriage of the sliding gate via a rope disc. The rope is wound and unwound in such a way that the gate can be opened and closed by changing the rotational direction of the rope drums. Due to the sliding gate's own weight of approx. 980 t, the new superstructure is synchronously driven on both sides by two oil-hydraulic drives. The synchronicity is achieved by a rigid shaft connection of both cable drums.
The workshop planning is implemented completely in three dimensions. This enables the early detection of collisions with other disciplines and, possibly, discrepancies in the planning. By using the IFC data required for the BIM planning method, it is also possible to present the client/customer with a comprehensive impression of the subsequent or current execution, both during on-site planning and construction meetings and via web-based communication tools, by means of a virtual tour.