Crane applications always have a simple and easy way to classify the working class of crane. For the convenience of the crane user understand and grasp the crane hoisting applicable working class, the following lists the various level of crane work:
| Crane type | Working class | ||
| Overhead Crane | Hook type | Power station installation and maintenance | A1-A3 |
| Garage and warehouse | A3-A5 | ||
| Workshop and warehouse heavy work use | A6、A7 | ||
| Grab Type | Discontinuously loading and unloading | A6-A7 | |
| Continuous loading and unloading | A6-A8 | ||
| Metallurgy specialized | Handling charging box | A7、A8 | |
| Charging | A8 | ||
| Foundry | A6-A8 | ||
| Forging | A7、A8 | ||
| Quenching | A7、A8 | ||
| Pliers, and Stripping | A8 | ||
| Lid-take-off | A7、A8 | ||
| Material rake type | A8 | ||
| Electromagnet type | A6-A8 | ||
| Gantry Crane | General use hook type | A3-A6 | |
| Loading and unloading grab type | A6-A8 | ||
| Power station hook type | A2、A3 | ||
| Shipbuilding installation hook type | A3-A5 | ||
| Loading and unloading containers | A5-A8 | ||
| Loading and unloading crane | Stock yard loading and unloading grab type | A7、A8 | |
| Port loading and unloading grab type | A8 | ||
| Port loading and unloading containers | A6-A8 | ||
| Portal cane | Installation hook type | A3-A5 | |
| Loading and unloading hook type | A5-A7 | ||
| Loading and unloading grab type | A6-A8 | ||
| Tower Crane | General construction installation | A2-A4 | |
| hanging cage loading and unloading concrete/beton | A4-A6 | ||
| Truck crane, rubber-tyred, crawler belt, railway cranes | Installation and handling hook type | A1-A4 | |
| Installation and handling grab type | A4-A6 | ||
| Deck crane | Hook type | A4-A6 | |
| Grab or magnetic chuck type | A6、A7 | ||
| Derrick crane | Installation and handling hook type | A5、A6 | |
| Installation and handling grab type | A6、A7 | ||
| Shipbuilding installation | A3-A6 | ||
| Cable crane | Installation and handling hook type | A3-A5 | |
| Handling or construction hook type | A5-A7 | ||
| Handling or construction grab type | A6-A8 | ||
