Mammoet’s PTC210-DS Ring Crane to Elevate A-Frame for Van Oord’s Svanen Heavy-Lift Vessel Cranes News Feed Offshore Wind by Editor - 23 April 202423 April 2024 In a monumental move for offshore construction, Mammoet's PTC210-DS crane is set to lift a massive A-Frame onto Van Oord's heavy lift installation vessel, Svanen.