The crane structures have a capacity of approximately 800 kgs Safe Work Load (SWL). A chain hoist is deployed on the YawHook™ for lifting of objects from the ground to the nacelle. The SWL varies for the applied chain hoist model and the various hub heights of wind turbines as specified. The chain hoist is powered directly from the auxiliary power net in the nacelle.
Foundations for any type of wind turbine can be provided with the YawHook™.