Single Girder Overhead Crane Customization Made Easy: Choose the Perfect Solution for Small-height Factory

  • 17 November 2024

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  • “My plant is low, how can I achieve a higher lifting height in a limited upper space?” Below will be an example to help you understand how to choose a customized single girder overhead traveling crane solution that better suits your needs in a low, limited-height space.

    Factory Situation Analysis – Low and Limited Overhead Space

    We received an inquiry from a client who wants to purchase 6 sets of 5-ton single girder overhead cranes for one of their spans in the workshop. However, the factory structure is relatively low, with the minimum height from the ground to the roof’s lowest part being only 5175mm. This falls into the category of low-height factory types:

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    calculation software crane

    Before purchasing a custom single girder overhead crane/single beam overhead crane, there are several key data points you need to be aware of:

    • Lifting Capacity: This is the predetermined maximum weight the overhead crane is designed to lift. The rated lifting capacity is usually indicated on the nameplate of the hoist unit and the bridge structure.
    • Lifting Height (H): For a hook overhead crane, this typically refers to the height from the hook center to the ground. The distance from the top surface of the factory leg support to the lowest point of the roof determines which single girder overhead crane options are viable, thereby deciding the maximum lifting height.
    • Span (S): The distance between the center positions of the two crane runway tracks determines the span. The span, in conjunction with the single girder overhead crane type selection, determines the left and right extreme positions for lifting.
    • Crane Traveling Length (L): A single girder overhead crane generally covers a running distance of 50 to 60
    calculation software crane

    calculation software crane

    calculation software crane

    calculation software crane

    There are many types of single-girder overhead traveling cranes, but due to the lack of space above the customer’s plant, the only applicable solutions are single-girder electric overhead traveling cranes (single girder EOT cranes), low headroom single girder overhead cranes and FEM/DIN type single girder overhead crane, our engineers designed the drawings of these three types of 5ton single girder overhead cranes according to the customer’s plant size.

    Scheme Analysis – Comparison of Price, Lifting Height, Space Utilization, and After-Sales Maintenance

    According to our previous experience, here are directional recommendations for customers when selecting a single-girder overhead crane solution:

    • If you want to choose the most cost-effective solution;
    • In limited vertical space, customization for a higher lifting height is possible;
    • If you want the maximum left and right extreme positions to achieve a larger coverage in the working area;
    • To reduce post-maintenance, choose a more worry-free solution.

     

    calculation software crane

    calculation software crane

     

    5ton single girder overhead crane price comparison for single girder EOT crane with the same span/Low headroom single girder overhead crane/FEM type single girder overhead crane. The single girder overhead crane is customized based on specific requirements. This quotation is only for the preliminary proposal during the initial communication. To obtain a solution tailored to your needs, please contact us.

    Lifting Height Comparison

    The differences in lifting height for single-girder overhead cranes are influenced by several factors:

    • The connection method between the main girder and the end beam. In this case, the most suitable approach is the suspended connection, where the two ends of the main girder are connected to the flange in the middle of the end beam through high-strength locating bolts. However, for the 5-ton FEM/DIN single girder overhead crane, due to the smaller structure of the end beam, the end beam’s cross-sectional height is not sufficient to accommodate a significant number of connecting bolts and a seated structure connection must be adopted.
    • The structural form of the electric hoist itself can determine the net lifting height of the electric hoist, i.e., the height from the hook center to the underside of the main girder’s bottom cover plate.
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