MacGregor, part of Cargotec, will deliver two large, 120 ft. double telescopic service cranes and one 50 ft. telescopic stores crane for a self-propelled hopper dredge, says an article published on their website.
Crane delivery
Currently being built for Manson Construction Co., the Frederick Paup will be the largest ever self-propelled trailing suction hopper dredge built in the USA and will operate all over the country.
The order was placed by Keppel AmFELS, Inc. and booked into Cargotec’s 2020 fourth quarter order intake. The cranes are planned to be delivered to the yard by the end of 2021, with commissioning and testing during 2022 prior to delivery of the dredge in spring 2023.
Largest US-built hopper dredge
The larger service cranes are double telescopic cranes with a size of 80 ft length when stored and extend out to 120 ft. The Safe Working Load (SWL) for these cranes will be circa 3,900 lbs at 120 ft and 108,000 lbs at minimum reach.
The aft stores crane is a single telescopic crane with a size of 32 ft length when stored that extends out to 50 ft. This versatile model has been installed on a diverse range of vessels in recent years, including a number of fishing vessels in the US Pacific Northwest.
MacGregor worked with the vessel owner/operator, Manson Construction Co. of Seattle, WA, and the designer, Hockema Group, Inc. of Seattle, WA, during the earlier design stage of the project to provide crane models that fit their requirements and ensure the highest quality.
The cranes will be built at MacGregor’s facility in Seattle, and the vessel will be built at Keppel AmFELS shipyard in Brownsville, Texas, USA.
Summary
- MacGregor, part of Cargotec, will deliver two large, 120 ft. double telescopic service cranes and one 50 ft. telescopic stores crane for a self-propelled hopper dredge.
- Currently being built for Manson Construction Co.
- The cranes are planned to be delivered to the yard by the end of 2021.
- The larger service cranes are double telescopic cranes with a size of 80 ft length when stored and extend out to 120 ft.
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Source: macgregor
