The RAM 'SingFlex' is a tandem headblock system which has been designed for use with conventional single hoist cranes. It offers the terminal operator tandem lift capability without the need for expensive dual trolley cranes. Each SingFlex headblock system is fitted with two RAM separating twinlift spreaders, providing the terminal operator with the flexibility of handling single 20ft, 30ft, 40ft and 45ft containers in the conventional singlelift manner. Alternatively, the operator can handle 2x40ft containers, 2x45ft containers or 4x20ft containers in tandem mode.