Crane duty classification is divided into A1-A8 level. If compare with crane work type China’s regulations in the past, roughly equivalent to: A1-A4 light; A5-A6 middle; A7 heavy; A8 extra heavy.
The following table is the common crane duty classification for overhead crane, gantry crane, jib crane and other types of cranes, etc.
For different types of overhead crane, the duty classification is also very different. In the following table, the main ducty classificaiton of overhead crane are presented for your reference. If you need to buy overhead crane and to confirm your overhead crane duty classification or duty service classification, please contact loal expert or leave a message below.
Crane type | duty classification | ||
Overhead crane | Hook type | Power station installation and maintenance | A1-A3 |
In workshop and factory | A3-A5 | ||
Heavy work with workshop and warehouse | A6-A7 | ||
Grab type | Discontinuous load and unload | A6-A7 | |
Continuous load and unload | A8 | ||
Metallurgy type | Used for Lifting work bin | A7-A8 | |
feed in raw material | A8 | ||
Used for casting | A6-A8 | ||
Used for forging | A7-A8 | ||
Used for quenching | A8 | ||
Used for clamping | A8 | ||
Used for De-cap | A7-A8 | ||
Material rake | A8 | ||
Electromagnet type | A7-A8 |
Gantry crane | General use hook type | A5-A6 |
Loading and unloading with the grab bucket | A7-A8 | |
Power station with hook type | A2-A3 | |
Shipbuilding mounting hook type | A4-A5 | |
Used for container | A6-A8 |
Loading bridge crane | Yard handling with the grab bucket | A7-A8 |
Port with the grab bucket | A8 | |
Port loading and unloading of containers | A6-A8 |
Loading bridge crane
Portal jib crane | Installation used hook type | A3-A5 |
Hook type used for loading and unloading | A6-A7 | |
Loading and unloading with the grab bucket | A7-A8 |
Portal jib crane
Tower crane | General construction and installation | A2-A4 |
With bucket loading and unloading of concrete | A4-A6 |
Tower crane
Crawling crane truck crane | Hook type | A1-A4 |
Grab bucket | A4-A6 |
Crawling crane truck crane
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