Upper package lower fancy gantry crane
Upper “enclosed” structure: The main beam and trolley running area adopt a closed box-type structure (“enclosed”), formed by welding steel plates into a closed cross-section. This design enhances the main beam’s torsional stiffness and overall stability, enabling it to withstand significant vertical loads and horizontal forces, making it suitable for high-precision operation of the hoisting mechanism. Additionally, the enclosed structure provides a more stable track foundation for trolley operation, reducing vibration and swaying, thereby ensuring safety during heavy-load or precision lifting operations. Lower “lattice” structure: The legs and lower support sections adopt a lattice-type (“lattice”) design, formed by connecting structural steel (such as angle steel, channel steel) via bolts or welding to create a perforated truss structure. This structure significantly reduces the equipment’s self-weight, minimizes pressure on the foundation, and offers excellent ventilation to reduce wind resistance, making it particularly suitable for outdoor, windy environments (such as ports and cargo yards).
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