... Reliable performance, higher productivity effect, low energy consumption; 2,The machine’s feeder system includes the first-phase and second-phase ... feeder;3, Loading the EPS beads into the feeder, expansion of the EPS beads, the expanded EPS beads enter the fluidized bed ... to realize fully automatic production of EPS beads; the density range of foamed beads is 7-40g/L,(7-40kg/m³). pre-expander machine