Construction machinery is a general term for construction machinery used in engineering construction. It is used in engineering fields such as construction, water conservancy, electric power, roads, ports, and national defense.

There are many types of construction machinery, which can be divided according to their purposes: 

Earthmoving machinery: Used for excavation, transportation, and loading and unloading of earth and rock, such as excavators, bulldozers, loaders, and road rollers.

Hoisting and transportation machinery: Used for hoisting, transportation, and loading and unloading, such as tower cranes, truck cranes, crawler cranes, and forklifts.

Piling machinery: Used for pile foundation construction, such as pile drivers, vibratory hammers, and rotary drilling rigs.

Concrete machinery: Used for concrete mixing, transportation, and pouring, such as concrete mixers, concrete pumps, and concrete pump trucks.

Road construction machinery: Used for road construction, such as asphalt pavers, road rollers, and milling machines.

Mining machinery: Used for mining, such as excavators, loaders, haulers, and crushers.

Forestry machinery: Used for forestry operations, such as harvesters, forwarders, and crushers.

Agricultural machinery: Used for agricultural production, such as tractors, harvesters, and seeders.

Construction machinery is an indispensable important equipment for modern engineering construction and plays an important role in national economic construction.

Construction machinery has the following characteristics: 

Technology intensive: Construction machinery is a technology-intensive product, involving multiple disciplines such as machinery, hydraulics, electricity, and electronics.

Capital intensive: The research and development, manufacturing, and use of construction machinery all require a lot of capital investment.

Mass production: Construction machinery is generally produced in batches to reduce costs.

Strong versatility: Construction machinery has the characteristics of strong versatility and wide adaptability, and can be used for various engineering construction projects.

With the advancement of science and technology, the technical level of construction machinery is also continuously improving, developing towards intelligence, greening, and efficiency.