Fluidized Zone Mixer with Flameproof Drive provides complete homogeneity and also prevents re-segregation if mixing cycles are continued beyond completion, even where the particles are of widely differing size and density. S. F. Engineering Works supplies Fluidized Zone Mixer with Flameproof Drive. S. F. Engineering Works is the manufacturer of process plants and machinery required by the Chemical, Paint, Inks Pharmaceuticals, Minerals, Food and related Industries. The Fluidized Zone Mixer with Flameproof Drive allows the mix to be discharged in bulk through large bomb-bay doors at the bottom of the mixing chamber, thus eliminating another common opportunity for re-segregation.