The older model of the mixing semi-axis in Zoomlion's concrete pump truck serves specific functions and plays a crucial role in the mixing process. Here is a description of its functionality:

Mixing Function: The primary function of the older model mixing semi-axis is to facilitate the mixing of concrete. It is connected to the mixing drum and rotates it in a controlled manner. This rotation ensures the thorough blending and homogeneity of the concrete mixture, resulting in a consistent and high-quality mix.

Material Discharge: The mixing semi-axis also contributes to the discharge of the mixed concrete. By rotating the mixing drum, it helps to position the discharge chute in the desired location, allowing for efficient and controlled discharge of the concrete onto the desired surface or into other equipment.

Mixing Drum Control: The older model mixing semi-axis enables control over the movement and speed of the mixing drum. It can be adjusted to vary the rotation speed, allowing for different mixing intensities based on the specific requirements of the project. This control over the mixing drum enhances flexibility and adaptability in achieving the desired concrete mix.

Safety and Stability: The older model mixing semi-axis is designed to ensure safety and stability during the mixing process. It is built to withstand the forces and stresses exerted by the rotating drum and the weight of the concrete. This ensures that the mixing drum operates smoothly and securely, minimizing the risk of accidents and ensuring the overall stability of the concrete pump truck.

Maintenance and Serviceability: The older model mixing semi-axis is designed for easy maintenance and serviceability. It can be accessed and serviced when necessary, allowing for inspection, lubrication, and any required repairs or replacements. This ease of maintenance ensures optimal performance and extends the lifespan of the mixing semi-axis.