The main criterion when choosing this equipment is the volume of the drum. Nowadays, concrete mixers with a drum volume of 30 liters are available on the market. For this equipment, this indicator is a minimum. Such small models are used mainly for the preparation of dry mixtures. They are also used in cases where it is necessary to prepare the adhesive composition for the tile. The dimensions that have this equipment make it possible to install it in almost any room. The low weight that such models have is given the opportunity for their easy movement to another room if there was a need for this. The volume of the drum of such mixers, of course, is not enough for the preparation of a solution in a volume for foundation work. It is more reasonable for solving these problems to use models 130-150 liters.