Abstract: A variable height blender system is disclosed that includes an industrial blender carried by a first lift and a second lift for moving the blender up and down into any of various vertical positions. The variable height blender system includes drive controls for independently controlling movement of the first and second lifts, and a synchronizer in communication with at least one of the first and second drive controls for synchronizing the movement of the first and second lifts to maintain the batch blender substantially level. The synchronizer includes a level sensor that senses a tilt of the batch blender with respect to a local gravity vector and sends level reading signals to the synchronizer for use in independently adjusting the speeds of the first and/or second lift.

Abstract: A mixer for mixing and/or blending product, such as granular material, includes a chopper disposed above an agitator assembly. The chopper preferably includes two sets of intersecting chopper blades that rotate in opposing synchronized motion in a zone of fluidized flow of product caused by the agitator assembly. A shroud above the chopper can be used to redirect product sprayed upwardly from the chopper blades back laterally into the zone of fluidized flow of product.

Abstract: A liftable blender assembly has a container, which is easily filled and emptied in that it may be loaded with ingredients from the top, may cause the ingredients to mix or react, may be raised and then may be emptied from the bottom.