Self feeding concrete mixers are multi-functional engineering equipment integrating loading, mixing, transportation, and discharging. This kind of concrete mixers are equipped with a self-loading system, allowing aggregates (such as sand and gravel) and water to be automatically loaded into the mixing drum directly on the construction site, eliminating the need for traditional concrete batching plants.

Take a 3.5 cubic meter self feeding concrete mixer as example, 3.5 cubic meters refers to the maximum mixing capacity of this mixer truck, suitable for small to medium-sized construction projects. Due to its relatively small size, the 3.5 cubic meter self loading concrete mixer truck has good maneuverability, making it suitable for use in urban construction and confined construction sites.

Working principle of self feeding concrete mixer:
- Automatic loading:
A bucket is installed at the front of the truck. The driver operates a handle to load sand and gravel into the mixing drum. The bucket's tilting function avoids the cumbersome secondary transfer steps required by traditional loaders.
- Precise weighing and water control:
Some units are equipped with a weighing system for real-time weighing of sand, gravel, and cement. Simultaneously, the water supply system automatically adds water according to a set ratio, ensuring accurate concrete mix proportions.
- Mixing process:
The mixing drum rotates hydraulically, rapidly mixing aggregates, cement, and water. Mixing time can be adjusted according to construction needs, ensuring the workability and uniformity of the concrete.
- Discharge and pouring:
The mixed concrete can be directly discharged via the reverse rotation of the mixing drum. Some models are also equipped with hydraulic telescopic chutes to deliver the concrete directly to the pouring point.

Structural features of self feeding concrete mixer:
- Rotation method:
The mixing drum can rotate independently or synchronously with the cab. The former offers stable operation and is suitable for conventional work; the latter allows the driver's visibility to adjust with the discharge direction, suitable for narrow construction sites and complex operating environments.
- Body structure:
Available in articulated and integral types. Articulated models have a small turning radius and good maneuverability, suitable for construction in confined spaces such as mountainous areas and rural roads; integral models have a robust structure and strong load-bearing capacity, making them more suitable for long-distance transportation and large-scale projects.

Advantages of self feeding concrete mixer:
- High efficiency and convenience:
No additional loader or manual assistance is required; one driver can independently complete the operation. Material handling, mixing, and transportation can be carried out continuously, significantly improving construction efficiency.
- Stable quality:
Equipped with a weighing and water control system, it allows for precise proportioning, ensuring stable concrete quality and meeting the requirements of high-strength bridges, roads, and other critical engineering projects.
- High adaptability:
It can be mixed on-site at any time, flexibly adapting to dispersed or small-batch construction tasks, avoiding initial setting problems, reducing process steps, and improving construction continuity. It is especially suitable for small and medium-sized construction projects, remote mountainous areas, or sites with limited transportation.

Self feeding concrete mixer is widely used in construction sites, road construction, rural construction, mining engineering, and other fields, it can be used for pouring foundations, walls, floor slabs, paving roads, bridges, etc.