Rahmenportalkräne

Rahmenportalkräne, also known as gantry cranes, are industrial cranes characterized by their bridge structure supported by legs or towers that move along rails or tracks. This design allows them to span over a work area, providing a large operational coverage without needing extensive support structures within the work zone itself. They are commonly used in heavy industries such as shipbuilding, construction, manufacturing, and material handling facilities like ports and railyards.

The primary function of a rahmenportalkran is to lift and move heavy loads, often oversized or bulky materials, across significant distances. They typically consist of a horizontal girder (the bridge) suspended between two or more vertical legs. A trolley runs along the top of the bridge, carrying the hoist mechanism and the lifting hook. The entire crane structure moves along a defined path on the ground or elevated tracks.

Different types of rahmenportalkräne exist, including full gantry cranes, semi-gantry cranes (where one end is supported by a leg and the other by a runway), and portable gantry cranes, which are smaller and often mobile. The capacity and span of these cranes can vary greatly depending on their intended application, ranging from a few tons to several hundred tons. Their robust construction and ability to cover large areas make them essential for efficient material flow in demanding environments.