Rubber Tyred container Gantry crane (RTG) is a mobile gantry yard crane used for stacking intermodal containers within the stacking areas of a container terminal. RTG cranes are used at container terminals and container storage yards to straddling multiple lanes of rail/road and container storage, or when maximum storage density in the container stack is desired.

Rubber Tired Gantry container crane(RTG) is generally made up of the following unit: Frame, hoisting system, minimum turing mechanism, bridge traveling and turning mechanism, trolley traveling mechanism,container spreader, diessel generator set and eletrical equipment, other aiding equipment for safety. Crane is accessible to PLC and CMMS and has sufficient power supply for lighting and communication.

Standards followed during design and manufacturing processes:
Rubber tired transtainer specification,
Test method for rubber tired gantry container crane,
Safety rules for lifting appliances,
Design rules for cranes,
Gantry crane technical requirements.
ISO standards and FEM.

By comparison with Rail Mounted Gantry container crane(RMG), RTG is better in flexibility and economy and being more adjustable to container yard. However, it shares the feature of rigid requirements of maintenance and higher expense in utility.