A Self Loading Mixing Concrete Machine (often colloquially called acement mixer) is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. A typical concrete mixeruses a revolving drum to mix the components. An alternative to a machineis mixing concrete by hand.List of Types of cement concrete mixers manufactured and exported by Safari. Buy all. This dual operation is very beneficial to customer cost wise and hence is very popular in small.