Bridge cranes with cantilever trolley

  • One of the new developments of GD is the ES type single-girder bridge crane with cantilever trolley.

    The new trolley design ensures the highest hook top position at a given installation height. This feature is particularly advantageous for installation in low ceiling buildings where the highest available lifting height is important.

    In addition to the extra high hook top position, another important novelty of the crane type is the lack of the travelling cable next to the main girder. There is no hanging cable that can be trapped. The trolley is connected to the crane's electrical system only through a plastic housing sliding pantograph system next to the main girder.

    The crane family is made with the well-proven, robust chain hoists of StahlCraneSystem in a load capacity range of 1 to 6.3 tons.

    Another novelty is the trolley's running gear with particularly low roll resistance. Loads are transferred from the trolley to the main girder by only three running wheels. The construction of the running gear is such that there is no flange friction, all forces are transmitted on rolling elements. This solution ensures a particularly long service life. Probability of failure and oparetional costs are a fraction of those of traditional running gears.

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