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Structural Design of Steel Portable Gantry Crane

The structural design of a steel portable gantry crane is a complex and delicate process that involves many aspects of consideration, including material selection, structural stability, load-bearing capacity, safety analysis and structural optimization.

Material selection: The selection of common materials for the metal structure of a portable gantry crane is the first step in the design process. Steel is widely used because of its high strength and good toughness. Q235 and Q355 are two commonly used steels, and their differences mainly lie in yield strength and alloy content. The yield strength of Q235 is 235MPa, while the yield strength of Q355 is 355MPa. Depending on the working conditions and environment of the crane, steels of different strengths can be selected. For example, a crane working in a low temperature area or with a high working grade may choose Q355 steel plate, while a customer without special needs may choose the lower-cost Q235 steel plate.

Structural stability and load-bearing capacity: The main beam and outriggers are the key to the structural design of a portable gantry crane, and they need to bear the operating load of the crane and its own weight. The design of the main beam usually adopts an inverted triangle tube truss structure, which is connected to the legs composed of seamless steel pipes by pins. Such a design has the advantages of strong wind resistance, simple maintenance and convenient drainage.

Safety analysis and structural optimization: Through these analyses, the working safety and stability of the crane can be improved. Structural optimization design aims to improve work efficiency and safety while reducing material use and achieving a balance between economy and performance.

Functional design: The design of small mobile gantry crane should also consider its functions, such as operational flexibility, excellent performance, time and labor saving, etc. High-quality materials and components ensure durability and reliability, while the compact design saves space and is easy to install.

Customized solutions: According to the requirements of different industries, small mobile gantry crane can provide customized configurations. This includes different lifting capacity, lifting height, lifting speed and span, etc. to meet the needs of specific industries.

The structural design of steel portable gantry crane is a comprehensive project, which requires comprehensive consideration of material properties, structural stability, safety, functionality and manufacturing process to ensure the efficient, safe and economical operation of the crane.