Precast batching plant is a facility used to produce precast concrete products, which is widely used in construction projects, infrastructure construction and other fields.

Precast batching plant generally consists of the following main parts:
- Mixer: It is responsible for mixing various raw materials (such as cement, aggregate, water and admixture) thoroughly to form uniform concrete.
- Raw material storage system: including cement silo, aggregate silo and water tank, etc., which are used for storing raw materials.
- Weighing System: Used to weigh various types of raw materials accurately to ensure the accuracy of the concrete formula.
- Control system: usually an automatic control system, which can realize the monitoring and management of the whole mixing process.
- Conveying system: conveying the mixed concrete to the construction site or to the transportation vehicles near the mixing plant.

The working principle of precast concrete batching plant mainly includes the following steps:
1. raw material preparation: according to the concrete formula, prepare the required cement, aggregate, water and admixture.
2. Weighing: The weighing system weighs the raw materials accurately to ensure the accuracy of the formula. 3.
3. Mixing: The weighed raw materials are fed into the mixer for full mixing to form uniform concrete.
4. Conveying: After mixing, the concrete will be conveyed to the designated place through the conveying system.

Generally speaking, precast batching plant models include 60 station, 90 station, 120 station, 180 station, 240 station, 270 station and 300 station. The annual production capacity of these models is about 150,000 cubic meters, 200,000 cubic meters, 250,000 cubic meters, 350,000 cubic meters, 450,000 cubic meters, 500,000 cubic meters and 600,000 cubic meters respectively. Of course, the actual production capacity will also be affected by various factors such as raw material supply, equipment maintenance and operation level.

Advantages of precast concrete batching plant are:
- Consistent quality: due to the use of automated control, it can ensure the consistency of the formula and quality of concrete.
- High efficiency: large quantities of concrete can be produced quickly, shortening the construction period.
- Environmentally friendly: modern concrete batching plants are usually equipped with wastewater treatment and dust collection systems to reduce the impact on the environment.
- Flexibility: The concrete formula can be adjusted according to the needs of different projects.

Precast concrete products are widely used in:
- Construction: e.g. foundations and main structures of residential and commercial buildings.
- Infrastructure: e.g. construction of bridges, roads, tunnels, etc.
- Precast components: e.g. production of concrete slabs, beams, columns, etc.
- Other special projects: such as dams, airport runways, etc.

In short, precast batching plant plays an important role in modern construction industry, and its high efficiency, stability and environmental protection make it an important equipment in building construction.