Well, a concrete mixer is any machine used for mixing various ingredients. In general they are of two types; continuous and batch mixers. In continuous concrete mixers, loading of contents, mixing and unloading is a continuous process and goes on for an indefinite period of time. Where as in batch concrete mixers, loading, mixing and unloading can be done only for a definite quantity and for a definite period of time. However the principle behind the mixing process remains the same for both continuous and batch mixers and it is more or less like a long-screw. In other words mixing of the ingredients is done by means of blades or paddles which are mounted on revolving shafts.
Based on the structure, concrete mixers are broadly classified into three types:
1. Gravity Concrete Mixers
2. Rotatory Concrete Mixers
3. Paddle Concrete Mixers
