If the quantity of concrete is not much enough to do with ready mix and is not less enough to do with hand mixing then mixture machine is used to mixing concrete. It is convenience to use mixture machine for mixing small quantity of concrete. Producing concrete with mixture machine is much faster than hand mixing. Normally the capacity of mixture machine is 4 to 9 cubic feet of concrete. Mixture machine can be bought or rented.
below are the overview of mixing concrete by machine-