Single beam crane and double beam crane are two common lifting equipment, and their main differences lie in the number and structure of beams.

A single beam crane has only one main beam and is usually suspended at the top of a factory or warehouse. This equipment is mainly used for lifting and transporting lightweight goods, such as small mechanical equipment and lightweight products. The structure of a single beam crane is simple, the cost is low, and installation and maintenance are relatively easy.

The double beam crane has two main beams, which are placed parallel on both sides at a certain distance and connected together with a certain number of crossbeams to form a bridge shaped structure.

This type of crane can carry heavier goods, has a more stable structure, and is suitable for larger factories, docks, and other places. The design of a double beam crane is complex, with high installation and maintenance costs, but it can provide higher lifting efficiency and safety.

Overall, single beam cranes are suitable for light lifting tasks with relatively low costs, while double beam cranes are suitable for heavy lifting tasks that require carrying larger cargo, but also have higher costs and maintenance difficulties.