Working level of bridge crane

The working level of a bridge crane is a comprehensive parameter that represents the basic capabilities of the crane. Users can choose the appropriate working level crane according to the process requirements to achieve both practical and economical purposes. The working levels of bridge cranes are divided according to the utilization level and load status of the crane. The working levels of the crane are divided into 8 levels, namely A1~A8.
The working level and lifting capacity of bridge cranes are two completely different concepts. The lifting capacity refers to the mass of the material being lifted at one time, and the working level is the comprehensive working characteristic parameter of the vehicle. If the lifting capacity is large, the working level may not be high; if the lifting capacity is small, the working level may not be low. If you only look at the lifting tonnage and ignore the working level, and use cranes with low working levels frequently and at full load, it will accelerate the scrapping of vulnerable parts, cause frequent failures, and even cause accidents.
Here are some examples of overhead crane work level breakdowns and uses:
A1-A3 Light grade, such as electric overhead cranes and manual overhead cranes for installation and maintenance.
A4-A5 Intermediate, such as hook overhead cranes used in machine shops.
A6-A7 Heavy duty, such as heavy duty workshop hook overhead cranes.
A8 super heavy class, such as metallurgical bridge cranes, casting bridge cranes, electromagnetic and grab bridge cranes that work continuously.