These cranes are used to transport the Castor fuel element cask, lift the screening bar, cover assembly the reactor pressure vessel and other examination work.
Load capacities of the main trolley in operation: approx. 250 - 300 tons, special loads of approx. 400 - 450 tons. Alongside the main trolley there is a catenary trolley and special trolley with load capacities of 5 - 40 tons. The special trolley drives diagonally to the main trolley direction for the precise positioning of smaller loads while the bridge travel unit is stationary.
All hoists are designed with redundant NKM Noell Special Cranes safety solutions (e.g. in accordance with KTA 3902-4.3 = fully single failure proofed systems) that prevent a load drop. In this connection, NKM Noell Special Cranes has developed and applied purpose-built monitoring systems.
The special hoist is usually manufactured as a stainless steel hoist (austenitic materials) making it possible for the hook to dip directly into the reactor pool. The crane control generally takes place on the reactor level by means of a mobile control console or via radio remote control. State-of-the-art visualisation solutions are standard with us. The electric-control system is accommodated in a passable air-conditioned bridge girder or in the front beam.