About This Project
Fabrication works of two trunnions used for a decommissioning project.
Trunnions for offshore decommissioning project
Fabrication works of two trunnions used for a decommissioning project. Since the dimensions of the hook did not allow fitting the grommets over the cranehook, a trunnion with endcaps and lifting eyes was designed. The trunnions are to facilitate the grommer in a basket configuration for a 900+ ton lift. The trunnions are fitted with closing caps and lifting eyes for proper handling whilst mobilizing. As usual, the engineering was performed by our sister company Saltwater Engineering.
The trunnions are milled from high tensile steel with a yield point of 969 N/mm 2 in order to cope with the occurring forces required for the engineered lift.
Challenges and solutions
Main challenge was the timeframe in which these two trunnions needed to be made. The short lines between the engineering and subsequent production proved again to be of great benefit as this resulted in the shortest lead time possible.
Project
Main dimensions and weight
- Dimensions: Ø250 mm; length 830 mm
- Weight: approx. 500 kg
- SWL: 900 ton
Production methods and delivery
MIG/MAG Welding
100% Magnetic Particle Inspection of the welds
Machining of trunnions
Delivery to client on the vessel