Lagerwey is a manufacturer of onshore wind turbines, and has developed a climbing crane – a solution that also may be interesting to develop for offshore use. The climbing crane attaches itself to the wind tower and climbs up. While climbing, it can install elements of the wind tower or change heavy elements of the wind turbine.
The Ampelmann E-type hexapod is used to compensate relative motions. By using a special gripper on a gangway, a stable connection is made. Once connected, a robot moves over the gangway towards the tower and hoists itself up towards the nacelle. The robot is equipped with both a small crane, as well as a blade-handling jig. Payloads are then lowered with the robot along the tower, where the load can be collected.