Grappling with a choice of grab unloaders
All grab-type ship unloading systems have differing strenghts and weaknesses. Dockside grab discharge of dry bulk cargo can either be carried out by high-capacity, purpose-built grab gantry unloaders or by lower-capacity (generally), but more versatile slewing cranes, whether fixed, rail-mounted, rubber-tyred or pontoon-mounted.
Mobile harbour cranes have long played an important role in mainstream bulk handling. For smaller ships and barges, the “new generation” of mobile (or rail-mounted) hydraulic unloaders, featuring a grabber device attached via a flexible link directly...
