The Twin Shaft Mixer offers double horizontal synchronized axles that produces a helicoidal flown, giving homogeneity to the concrete mix and reduced mixing time. This mixing action can produce concrete with a wide range of consistencies (0- to 12-in. slumps) for a wide variety of industries such as ready-mix, precast, and manufacturers of other concrete products. A high-pressure pump feeds water through special rotating nozzles that are capable of reaching the entire mixing surface. The washing system can use the process water in every batch, completely washing the mixer in just a few seconds. BMH Systems. 450-449-4770.