The discharge grab for ships is a set of mechanical jaws mounted to the end of a crane cable. It is used to load or offload bulk cargo, such as coal, wood, etc. NauticExpo offers different types of grab: hydraulic, electro-hydraulic, with safety, etc.
The discharge grab is used to load or unload bulk cargo, such as coal, scrap iron, wood, etc.
Grab design varies. Some have clamshell buckets or single grab arms, while others have several arms, like the fingers of a hand. Operation differs with the power source: hydraulic, electric with safety, etc. The grab sits at the end of the crane cable and is controlled from the crane cabin.
Choice of grab will depend on the type of cargo to be handled. For example, for bulk coal, a clamshell bucket grab is more effective than one with separate arms.