If we consider the RAM SingFlex, in tandem mode the crane operator can handle 2 x 20ft, 40ft, 45ft ISO containers or 4 x 20ft containers, boosting container handling productivity. More lifts per crane cycleĪs the operator now has two spreaders attached to the crane, the operator has the power to lift more containers per cycle. The height of the SingFlex headblock and container spreaders attached is 3 metres, which means crane operators can reach new heights whilst operating in tandem. In addition, the height between the sheeve and the bottom of RAM’s 2940 STS spreaders means terminals can accommodate large mega vessels without risk of having equipment that is too low. Tandem headblock’s can be used on single hoist cranes, which weigh much less and cost significantly less than a dual hoist crane. Many ports and terminal operators think tandem lifting requires an investment of a dual hoist crane as well as a headblock but this simply isn’t true. The lifting and installation of chiller is a simple lift using single crane 100 ton capacity.
Tandem lifting has opened a new avenue to improving port productivity and efficiency. Tandem means ‘side by side’ as opposed to ‘end by end’ – in this case, tandem lifting is a crane hoisting two container spreaders at the same time. This is where tandem lifting comes into the field of play. In recent years, container terminals are accommodating larger container vessels, which has led to growing pressures on ports to load and unload containers more productively.
