Construction machinery is no longer listed as a special equipment catalogue (except for a few models such as tower cranes, construction lifts and cranes).
Most types of construction machinery, such as excavators and loaders, are no longer special equipment and do not involve special operations, so they are no longer special operation certificates. The quality supervision department is responsible for the supervision function in the field of manufacturing, and no longer handles the operation certificate of construction machinery in the construction site.
Extended data:
Excavator classification:
1, common excavators are driven by internal combustion engines and electric excavators. Among them, electric excavators are mainly used in flammable and explosive places such as plateau hypoxia and underground mines.
2. According to different scales, excavators can be divided into large excavators, medium excavators and small excavators.
3. According to different walking modes, excavators can be divided into crawler excavators and wheeled excavators.
4. According to the different transmission modes, excavators can be divided into hydraulic excavators and mechanical excavators. Mechanical excavators are mainly used in some large mines.
Baidu encyclopedia-excavator operation certificate