RoRo is short for “Roll-on Roll-off”, which is the description of how cargo is loaded and discharged from a RoRo vessel. This means simply that cargo rolls on or off the vessel, as opposed to being lifted using cranes. For self-propelled cargo, such as cars, they roll on and off the vessel on their own wheels. For cargo that is not self-propelled, the cargo is placed on handling equipment with wheels on the terminal to roll the cargo on and off the vessel. The cargo then remains on the handling equipment for the entire sea voyage.
A RoRo vessel loads cargo via a wide stern ramp. Some vessels, such as the Wallenius Wilhelmsen vessels has a ramp capacity of up to 500 tonnes, but most other carriers have capacities around 150 tonnes. The RoRo option provides secure and efficient operations as less lifting is required and operations are not weather dependent. WWL’s RoRo vessels are designed and optimised to transport auto, rolling equipment and breakbulk cargo.
Inside a RoRo vessel it works like a parking house, with ramps connecting the decks. The cargo is rolled onboard to the appropriate deck, depending on the cargo’s weight, height and length, and safely secured with lashings to the vessel’s deck. The vessel decks have different strength and heights, enabling a RoRo vessel to carry a mix of cargo: from cars, trucks, buses and construction and agricultural machinery to heavy mining equipment, generators and locomotives. The quality of the handling is unrivalled by any other vessel type.
Take a look inside a RoRo vessel
With their strong body hull and dead weight ranging from 30,000 to 50,000 tonnes, the RoRos’ “High & Heavy” decks can withstand up to 10 tonnes of pressure per square metre. This means they are perfectly suited to carry heavy cargo. Three or four out of the eight decks are hoistable: they can be raised or lowered to optimize cargo fit and vessel utilisation.
With WWL’s large fleet of handling equipment RoRo is the safer and smarter way to ship your breakbulk cargo.