"Modern requirements are for dust-free operations for the benefit of crew, stevedores and the local environment," says Tomas Wallin, Technical Director. "The total enclosure of the MacGregor closed boom results in a truly dust-free operation, but the benefits do not end there.
Upgraded self-unloader systems are clean and efficient
3 May 2011 - Trade press release (MacGregor)
Cargotec has introduced new developments that allow shipboard systems for gravity self-unloading dry bulk cargoes to deliver greater capacity while minimising environmental impact
Cargotec has enhanced its MacGregor bulk cargo gravity unloading system with two new developments: a space-saving gate under the hold, and a fully enclosed boom conveyor. "MacGregor gravity self-unloading belt conveyor systems for bulk carriers benefit from over 50 years of development and operational experience but, as in all areas of its activities, Cargotec continues to refine and improve the concept," Sales Director Johan Ericson says.
MacGregor Full Flow Gate
Cargo gates are the first element of a ship's gravity unloading system, and allow the cargo to fall on to the conveyor belt running below the cargo holds in a controlled manner. As part of its continuing R&D investment, Cargotec has developed the MacGregor Full Flow Gate. Its wide gate opening generates increased cargo capacity and increased discharge rates while minimising material flow disruptions. The new gate can handle a variety of cargoes including coal, iron ore, gypsum rock and aggregates.
Anders Bäckström, Senior Mechanical Engineer, says "Cargotec has developed a gate with a high cargo handling capacity without compromising on hull space. The more space occupied by the gates and conveyors, the less there is available for the revenue earning cargo. Thanks to careful placing of the gate control machinery, the MacGregor Full Flow Gates require much less space than traditional gates."
MacGregor Closed Boom
The boom conveyor is the final element of a ship's bulk self-unloading system, transferring the cargo to a shore based or marine facility. Up to now, boom conveyors have been equipped with conveyor covers, water spray nozzles and dust collectors to reduce spillage and keep dust emissions to a minimum.
"Thanks to its ingenious design, the MacGregor Closed Boom has an optimal support structure with a smooth upper surface to prevent ice formation and a smooth inner bottom surface to enable easy cleaning. Service and inspection is also much easier and safer than with a traditional system." There are walkways alongside the belt, allowing safe and easy access to the equipment within the walls of the boom.
The new boom will benefit from an increased product life span because the components are well protected against the external elements.
Cargotec improves the efficiency of cargo flows on land and at sea - wherever cargo is on the move. Cargotec's daughter brands, Hiab, Kalmar and MacGregor are recognised leaders in cargo and load handling solutions around the world. Cargotec's global network is positioned close to customers and offers extensive services that ensure the continuous, reliable and sustainable performance of equipment. Cargotec's sales totalled EUR 2.6 billion in 2010 and it employs approximately 10,500 people. Cargotec's class B shares are quoted on NASDAQ OMX Helsinki under symbol CGCBV. www.cargotec.com
MacGregor is the global market-leading brand in marine cargo handling and offshore load-handling solutions. Customer-driven MacGregor engineering and service solutions for the maritime transportation industry and the offshore load-handling and naval logistics markets are used onboard merchant ships, offshore support vessels, and in ports and terminals. www.macgregor-group.com
Cargotec press release