Electrification of Rubber-Tyred Gantry Cranes (RTGs) by Means of Conductor Lines

Due to constantly rising fuel prices, the time needed to refuel the crane, increased maintenance costs for the diesel-electric drives, the resulting standstill periods and increasing environmental obligations crane manufacturers and port operators are rethinking the power supply for RTGs.

The aim is to produce as little as possible of the power RTGs need for normal in-port operation with the combustion engine and for it to only be used when the crane has to leave its normal working area. The diesel-electric drive therefore needs to be replaced with flexible power transmission.

The advantages of the retrofitting are:

• Ergonomic connection and disconnection to the conductor line via touch panel in the operator cabin
• Operation of many RTGs in one bay is possible
• No ground personnel needed

Depending on the customer’s requirements and in cooperation with the operators at the site Stemmann-Technik will find individual possible solutions to retrofit the RTGs from diesel-electric-drives to electrical power supplies by means of conductor lines or motor cable reels.