Importance of Four-corner Eyelets for Offshore Lighting Equipment and Crane Lifting|
Article - April 2, 2018 By LarsonElectronics.com
Importance of Four-corner Eyelets for Offshore Lighting Equipment and Crane Lifting
Industrial operations often use heavy machinery and tools for large projects. Such equipment, which includes large lighting systems, must be easily transportable to streamline the setup and tear down process. As a result, specific regulations, preferences and designs are being adopted by fast-moving sectors, such as offshore and construction, to promote versatility at the work site.
One of these trends include the use of eyelets, rings or eyebolts at every corner of equipment for offshore locations. Read on to understand why some businesses require such components at offshore sites and the importance of eyelets for crane lifting operations.
Vertical Crane Lifting
Using eyelets, offshore operators can move equipment around the work site with ease. Instead of using land-based methods, such as carts or trucks, it would be faster and more efficient to transport equipment using a crane. During emergencies, this is also considered to be safer, since the unit can be moved away from dangers around the facility in one fluid, vertical motion. Additionally, the rise of self-contained lighting systems, with all the necessary parts for operation found on the assembly, has made eyelets a crucial component for equipment in remote locations.
Welded eyelets are the most common types of eyebolts for crane lifting in offshore sites. Due to their sturdy properties, they are more reliable than conventional, screw-type eyelets. Traditionally, welded eyelets are permanent features of the machine or assembly. These days, manufacturers are making lifting components detachable, in order to ensure they are properly maintained and able to retain their rated capacities. Inspecting detached crane-lifting components inside storage rooms is significantly easier than checking on them when they are fixed at an inaccessible part of the assembly. Alternatively, some operators cap or plug the holes when they aren’t being used.
Best Practices and Applications
For vertical loading, regular eyelets are optimal, as angled loading could break the components. Shoulder eyebolts and swivel hoist rings are recommended for both vertical and angled loads. Capable of swiveling 360 degrees and pivoting 180 degrees, they can withstand lifting at multiple angles. This extension in movement allows the rated load to remain constant, even at different angles of force. From a cost perspective, swivel hoist rings are more expensive to acquire and are heavier than standard eyelets.
Riggers must take the load capacities of eyelets into consideration to prevent damaging the equipment during transportation. In most cases, injuries or accidents occur when an operator utilizes a shackle or chain that has a higher lifting capacity than the eyelet, resulting in overloading.
Lastly, workers should not be directly under the load when it is being moved to the target location. In the event transportation needs to be postponed, the load must be slowly lowered to the ground – not left unattended, while suspended in the air. To improve inspections, eyelets should not be painted or covered. Some breaks cannot be detected naturally and can only be seen in x-rays or using other NDT methods.