Delft University of Technology
Faculty Mechanical, Maritime and Materials Engineering Transport Technology
M. Kooijman 2nd trolley systems in container cranes
Literature survey, Report 2006.TL.7075, Transport Engineering and Logistics.
The amount of containers that a quay crane can handle within an hour can be raised by the application of a second trolley system. Ship can leave the port earlier, or larger ship can be handled. Many second trolley systems have a platform to store the container temporarily. The supply of containers to the terminal become smoother by the use of a platform, as a result more containers can be handled.
In this literature search several published concepts have been treated. These concepts are second trolley systems with a fixed platform, with a moveable platform, systems with an ongoing container transport and systems without a platform.
It is impossible to designate one concept that fits in all situations. The choice for a concept depends among other things on the available budget, the desired crane productivity and if the concept is applied on a new or existing terminal.
Reports on Transport Engineering and Logistics (in Dutch)
