Multi Chamber Blender Vertical multichamber blenders (max 8 chambers) are available in working widths of up to 2 meters. The material is fed to the blender through a pipe, of decreasing diameter, with a bend, which slows down the speed of the material, and conveys it to the top part of chambers. The material is drawn into the various chambers by air pressure/depressure and an air-pressure switch regulates the arrival and the compacting of the same.