Although originally developed for biomass materials, Saxlund International flat bottom silo technology was soon in demand for many other difficult and sticky bulk solid materials. This of course includes de-watered sludge cake in the water industry (sludge handling) The Push Floor and Sliding Frame discharge machines have been engineered and refined over the years to a level that allows us to claim to be market leader in sludge handling. The latest generation of both the Push Floor and Sliding Frame now have new patents.