Metallurgical cranes used by metal smelting enterprises, compared with cranes used by general enterprises, have the characteristics of frequent use, harsh environment, high security performance and automation requirements, and their electronic control equipment must adapt to these characteristics. Starting from the transmission scheme, to the selection of components and wires, as well as the arrangement of components, the way of routing, and even the sealing and cooling of the electrical room and cabinet should be considered to some extent.

Due to the many types of metallurgical cranes and their different tasks, a variety of transmission control schemes are required to meet the needs of various types of cranes. Some require efficiency rods, but no requirements for speed regulation; some require speed regulation when falling, but no speed regulation when rising; some require speed regulation when rising and falling; some require fast and reliable braking (Electromagnet brake); some require smooth braking (hydraulic push rod brake), etc.

The production of metallurgical enterprises is a continuous production with excellent efficiency. The crane, which is responsible for handling tasks, works continuously 24 hours a day and is used very frequently. Therefore, the selection of electrical components and wires should have sufficient margin and sometimes reduced capacity. The production of metallurgical enterprises is a multi-machine joint operation to jointly complete a certain process. Each machine on the production line is required to work reliably, otherwise it will affect the entire production line. Once the production is stopped, it will cause huge losses. Therefore, the work of the electronic control equipment is required to be very reliable, all kinds of protection should be set up, and once the electrical components are damaged (which is inevitable), they should be easy to replace. Sometimes it is also required to have a bypass system, so that in the case of normal circuit failure, the crane can ensure that the remaining work is completed in time.