A self-operating device blends cement, aggregates (such as sand and gravel), and water to produce concrete. Various sizes exist, from portable units for smaller projects to large, stationary models for high-volume operations. A typical example includes a rotating drum with internal blades or paddles that mix the ingredients thoroughly.
These devices offer significant advantages in construction and other industries requiring concrete. Automation ensures consistent mixture quality, reduces manual labor and associated risks, and increases productivity. Historically, concrete mixing was a labor-intensive process. The development and refinement of these automated machines have revolutionized concrete production, enabling larger-scale projects and improving build quality.